Like many of you, I like my music collection and have amassed a large collection of music CDs over the years. Because I commuted a lot and wanted to listen to a large range of my music collection I purchased a portable minidisc recorder/player. Later I replaced this with a full deck and a portable player. Now, the problem having moved to Canada recently from New Zealand it was not worth me bringing over my full deck and with my large range of music, I found it time-consuming copying audio to the MD discs at 1x speed. Recently SONY introduced the NetMD format for their new range of MD walkmans but I decided it was not what I was after. I did not like the software “checkout” system they used and heard there were problems with variable bit rate mp3 files.
I started to look at other solutions and had the Nomad Jukebox II for a short time. I found the USB copying of large number of tracks to be flakey, and the software to be full of bugs that would cause it to crash. I delved into the world of CD based mp3 players and found the iRiver iMP-350 SlimX. This unit has solved some of my issues and provided a great means of listening to my tunes.
Hardware Specs
Dimension: Approx. 135(W) X 145(L) X 16.7(H) mm
Weight: Approx. 189g (Excluding Batteries)
CD Type: CD-DA, CD-Text (8cm/12cm), CD-ROM Mode1, Mode 2 Form1, Enhanced CD, CD-Plus
CD-R/RW Readability: Packet-Write, ISO9660, Joliet, Romeo, Multi-Session
File Support:
File Type MPEG 1/2/2.5 layer 3, WMA, ASF
Bit Rate 8Kbps ~ 320Kbps
Tag ID3 V1 Tag, ID3 V2 2.0, ID3 V2 3.0
Power Supply: AC Adapter DC 4.5V, 300mA, Rechargeable Two STICK Type Ni-Mh Batteries, External Battery Two 1.5V AA Size Batteries
Connections: Headphone Out (combined with special remote connector), Line Out, AC Adapter
Additional Features: Built in FM tuner, Backlit Graphic Display on Remote, Adjustable equalizer (5 Presets and 1 User Defined), Supports multiple languages.
Box Contents
• SlimX 350 CD/MP3 Player
• Remote control
• Bud style headphones
• Instruction Manual
• Cloth bag
• AA battery extender
• AC Adapter (I forgot to put it in the photo!)
The big thing to note about this unit is that it is slim line at 16.7mm and is currently the worlds thinnest CD based MP3 Player. It plays standard audio CDs, Enhanced CD, CD Plus, home-made CD-R and CD-RW discs, supporting the popular music formats of MP3, WMA and ASF!
There is also an 8 minute antis-shock buffer to avoid any skipping during playback and the unit’s firmware is user upgradeable. This means when future audio formats are released or features added to the player software, these can be downloaded from the company website and burnt to a CD-R. The unit is powered on and the firmware is upgraded to include the new changes. I have already successfully completed this capability twice.
Build Quality
I found the build quality to be excellent. It feels solid to hold and possibly would take a few knocks (Not that I tested that out!!) The design and look of the player is very nice.
Remote Control
Unfortunately, I found the remote to feel “squarish” in the hand, and a bit awkward to use with the small buttons. While trying to navigate the menu I often would press the wrong button. Now, having a remote is a major consideration for me for buying a portable music-playing device. I like to have the player tucked away in a bag or in a pocket and control it from my remote. I found the clip to be tight and strong. Ideally my favored style of remote control has both the wire from the headset and from the unit connected on one side, like some of the AIWA MD player remotes are designed. This enables you to clip them easier to the outside of your jacket and have the wires coming from one general direction.
It would be great if iRiver release a more ergonomic styled remote. Update, September 2002, iRiver have released a new remote with the iRiver 400 player that looks to resolve the problems I mentioned above!
Rechargeable Batteries & External AA holder
The other great feature for the player is that it uses rechargeable batteries. These are of the “gum stick” varieties that are now commonly used in many types of portable devices. (Walkmans, cameras etc). If you are out and find out you have run out of juice, you can use 2 x AA batteries in the supplied pack to provide more playback time. A great idea and concept. Unfortunately the pack does not attach to the player but dangles precariously from it by the attached power cable when used.
Support
After about 2 weeks, I actually lost the tiny spring to that holds the clip to the body of the remote. It pretty much came off when I was walking down the road and I was clipping the remote to my jacket.
I gave a quick call to the friendly guys at www.mp3playerstore.com and asked about the warranty for the unit. They directed me to the manufacturer, who I contacted at their North American web-site at www.iriveramerica.com. I emailed them explaining my plight with the remote control and after a few days without an acknowledgement of receiving my email, I gave them a call. The person I spoke to checked their email and said they had had it in their inbox. Warranty claims were dealt with another party and my email will be forwarded to them. I would expect to hear from them and receive a RMA in about 10days time. (That was over 6 weeks ago and I STILL have not heard a thing from either of them) Update – September 2002, still no word from iRiver or their warranty team.
After about 2 weeks, I called the guys at Mp3PlayerStore up and had a chat to them explaining my problem with the missing remote control spring. They said that they had received similar returns and that I could infact return it to them and they will swap it out. They promptly sent me an RMA and I sent in the remote. Within the week, I received an email stating that my remote had been shipped. (They shipped it XpressPost as well)
Needless to say, I am very, very pleased with the customer relations from mp3PlayerStore and would like to thank the guys there for helping me out when they did not really have to. (My only association with them is that I am a happy customer!)
Iriver have a great product, but their marketing/sales/team could do better. Ok, this may be one of *those* “one-off” experiences, etc but in my email to them I actually highlighted the fact that I was in the process of reviewing the player!!! Something I did not mention this to the Mp3PlayerStore guys.
That said and done, the product is great.
http://www.the-gadgeteer.com/review/iriver_slimx_mp3_cd_player_review
Monday, April 30, 2007
Tweaking the Light Fantastic
High end audio gets away with murder. By the standards of the non-audiophile, most of the stuff we buy, and what we pay for it, can be explained only by a form of selective dementia affecting us in all areas having to do with reproduced sound. How many other industries cater to a demographic as fanatical, as restlessly compulsive, and as willing to suspend its collective disbelief? The answer may lie in another question: How many businesses are charged with selling something as slippery and unquantifiable as the aesthetics of sound?
In high-end audio the rules which govern the realm of normal consumerdom do not often apply. While mid-fi and mass market gear tends to be sold based on common and easily quantifiable factors like price, abundance of features, and reputation, the high-end hawks its wares with an avalanche of subjectivity, with lures which are less easily grasped but far more enticing to the truly addicted audiophile. Features? Value? Ha! Wrong end of the store pal. This stuff is sold with something you can't see on the spec sheet; the promise of soul stirring musical experiences in your very own home, of music which bears no trace of its reproduction. Once these sonic fruits are tasted, and the passion and dedication with which many audiophiles pursue them understood, the concept of loudspeakers costing more than luxury sedans begins to seem, if not sane, at least conceivable.
Venture a little deeper into the high end's lunatic fringe, however, into the innocuously named world of audio accessories, and things get downright perverse. By normal consumer logic when mature adults are spending substantial sums of money on cones, stones, pucks, wraps, sprays, and phosphorescent discs to be used in conjunction with their stereo systems something is terribly wrong. In high end audio it's called tweaking, and it's pretty popular.
Many would dismiss tweakery outright, claiming indiscriminantely that all such products (which often seem to have little or no rational explanation and little, if any, perceived value) are tantamount to snake oil, the people who use them gullible rubes, and that the whole business just contributes to the high end's image as a hobby for insane, obsessive madmen more interested in the quest for some holy grail of sonics than in enjoying music. The Continuum of Tweakery
While this may be true in many cases it's unfair to most serious audiophiles. Like most things tweaks and tweakers occur in degrees; or for purposes of convenience here, on a continuum (see graphic). Starting at left, or zero, is the practical, logical, inexpensive and often home made tweak, which may not involve purchasing anything at all; like floating the ground on your amp to avoid hum or putting tennis ball halves under your equipment for a little budget isolation. Somewhere in the middle are commercially available but seemingly logical and reasonable tweaks which don't cost a ton of money and aren't impractical or inconvenient to use. Our own Audio Ideas Imagers are a good example: cheap, effective, easy to understand and, once installed, can be forgotten about. At the far right (from seven to ten, say) are expensive, impractical, arcane tweaks which, if their alleged effects can be explained at all, are explained in very nebulous terms dealing more with the timbral signature of a violin or the placement of the soprano in your soundstage than with any understood acoustic or electronic theory. In other words these tweaks are so mysterious and so unusual that they require serious suspension of disbelief. More often than not these are what I call audio placebos, improving the sound only in the listener's mind. I would put products like the Bedini Clarifier in this final category (see my review in Vol. 17 #1)
As a tweaker I would place myself somewhere on the left side of the line. I'm inherently skeptical but when faced with a weird tweak I do my best to try to decide with my ears rather than with a sense of predestined impossibility. In other words I try to refrain from muttering things like "this can't possibly work". My approach is more like "I don't fully understand why this should work, and the supplied literature is pretty lame (and it usually is - see below), but let's see how it changes the sound." Besides, my job is to tell you how it sounds, not to delve into a deeply technical speculation of what's its doing or not doing.
With all this in mind, let's look at some tweaks which have been piling up at the AIG offices over the past few months.
Harmonix RF-11 CD Tuning Sheets: $22 (CAN) for a package of 8 Harmonix Tuning Sheets
The first of several CD-specific tweaks Harmonix RF-11 tuning sheets are thin, adhesive-backed pieces of plastic meant to be stuck on the label side of a disc. Although largely transparent (allowing you to read the label once applied) the sheets have green rings around their inside and outside circumferance and four, evenly-spaced cross shaped cut outs.
What is sticking a sheet of plastic to the backside of my CDs going to accomplish, you may well ask? Well, according to the back of the package (the only available literature) the sheet "helps achieve the full musical potential of the compact disc format by eliminating resonances and jitter induced by the CD drive mechanism and airborne vibrations." Upholding the grand tradition of audio accessory literature this explanation is not only confusing and vague it's so awkwardly worded that it reads like a bad translation (which it most likely is). The cardboard flap goes on to say that with the RF-11's stuck to a disc "the music reproduction becomes sweet and pure, free of hardness often associated with CD sound... extraordinary clarity, greater delineation of individual instruments and voices, and expanded sound-stage presentation." Hot dog! They've found a way to make a CD sound like an LP!
While the explanation of how they work might be frustratingly vague it's easy enough to conclude that weighing down a spinning object may, if done evenly, smooth and steady its rotation, and in the case of a CD, make it easier for a laser to read information off the disc.
Listening tests helped justify relatively central position on the continuum for the Tuning Sheets, revealing a very subtle but audible improvement in sound. Using a couple of sets of identical CDs (A Koss Classics edition of Beethoven's Ninth [KC 1003], which I happen to have in duplicate, and our own Test & Reference CD) I placed a sheet on one disc in each set and alternated back and forth between the bare disc and the CD wearing a sheet. Drums became a little tighter, transients and dynamics a little more lively, and, true to the promise made on the package, the delineation of instruments did marginally improve. It must be kept in mind, however, that these improvements were on a very small scale, equivalent perhaps to the difference between two digital interconnects. In other words, it won't make your CDs sound like good vinyl.
As for practicality and ease of use, there are worse (see below) but I'd say the likelihood of yours truly spending the better part of a day applying very expensive stickers to 300 odd CDs is roughly equivalent to that of AM purchasing a Radio Shack rack system and a stack of Kraftwerk albums this weekend. As for the money, I think it would be better applied elsewhere in your audio system or your music collection. If you're still keen to try these things consider one more thing: most car CD players will likely react negatively to CDs which are even slightly thicker than they should be. My life lesson in this involved a delightful hour with a pair of tweezers contorting myself in various ways inside AM's car. On the continuum of tweakery these rate a 6.5
QR Design Statmat $US 40.00 ea.
From one piece of plastic to stick on CDs we go to another. This time, however, both the goal, and the approach, are different. From the makers of the highly effective Ringmat (one of the best and easiest turntable tweaks extant) the Statmat is a very thin slice of polypropelyne film coated with a pattern of conductive inks which is meant to sit on the label side of CD while it plays. Unlike the Harmonix sheets it is almost weightless, non-adhesive, and is meant to be used and re-used with whatever disc is playing. Statmat
The stated goal of the Statmat is easy enough to glean from its name: to discharge static electricity from the CD as it plays. The conductive inks, we are led to assume, dissipate the charge into the air. Just as it is easy to see why the Tuning Sheets might help stabilize a spinning disc, it is logical enough to assume that the Statmat may help reduce or eliminate static electricity from CDs. However, while one may be able to infer that smoothing disc rotation may reduce reading errors, and therefore digital jitter, the assumption that a static charge is harmful to CD playback strikes me as less sound, if you'll excuse the pun. As for how static electricity could effect the reading of pits off a spinning CD, I'll leave that question to the electrical engineers and physicists among us. Needless to say the suspension of disbelief factor on this one is higher than with the Tuning Sheets.
Listening tests did not dilute my skepticism. Spinning various discs with the Statmat alternately on and off the CD in question produced mixed results. After several runs with both Chris Isacc's Wicked Game (Reprise CD25837) and Casandra Wilson's New Moon Daughter (Blue Note CDP 532861) I actually thought that the CDs sounded better without the Statmat, giving up more detail and a smoother more neutral sound in their naked form. Moving on to other types of music I could hear no discernable difference using our own T&R CD (the Bach cello suite at the very end) and Dick Hyman's From the Age of Swing (Ref. Recordings RR-59CD).
Not only did the Statmat not improve the sound of CDs it was a serious pain in the butt to use. Try getting something this light and flimsy (to say nothing of its propensity to become airborne with the slightest hint of a breeze) to remain centered on a disc as you try to put it in a player. With only mild suction keeping it on the disc I was always relieved to see it emerge from the player still attached to the CD, visions of trying to remove shredded bits of polypropylene from my drawer mechanism dancing through my head.
Combine the sketchy science with the lackluster sonic effects, the outrageous price (especially considering the materials!), and the inconvenience of using the thing and you've got a tweak which sinks deep into serious voodoo/placebo/mysterioso territory. I'd give it a ten but that would be unfair to all the insane tweaks which cost so much more money, so I'll give it a nine.
Audio Prism CD Blacklight: $65 (CAN) ea. Audioprism CD Blacklight
Yet another product designed to sit on top of CD comes from AudioPrism, the folks who brought you CD Stoplight (a green paint meant to be applied to the edges of CDs). With the CD Blacklight Audioprism has basically combined the goals of the Statmat and the Harmonix Tuning Sheets into one product, while adding one other dimension to the CD tweaking equation. Like the Harmonix sheets the Blacklight is fairly heavy, one of its stated goals to act as "an effective vibrational short circuit and rotational mass for dynamic stability." Like the Statmat it also uses a series of conductive lines to "effectively lower [the] electrostatic potential of the compact disc itself." The Blacklight, however, goes one step further by adding "a proprietary, frequency specific, highly emissive, phosphorescent surface layer" which "optically saturates the compact disc as well as the disc compartment." This last feature requires the user to "charge" the CD Blacklight by placing it under a light source for about a minute (fluorescent and natural light sources are said to work best), after which it will take on an eerie green glow, signaling that you're ready to apply the glowing side of the mat to the CD and play away.
As with the other CD tweaks, explanations or inferences about what's its doing are fairly easy to come by, the literature being slightly better than with the others. As usual it's when asking "why" that we have to suspend our disbelief. On the Blacklight box, for instance, Audioprism explains that stabilizing the disc through the addition of mass will increase "bass definition and slam"; that reducing the electrostatic potential of the disc will result in "less read interference with the laser sub-system, improving imaging and soundstage"; and that saturation of the disc compartment with black light will reduce "jitter resulting in a more open and smoother presentation." As for WHY these approaches should improve the sound in these ways we are, despite the eerie green glow, left in the dark ( This is not to say that all companies should have to explain exactly how all their products work. I think, however, that in a case such as this, where both the approach and the intended effects are quite unorthodox and unclear that a more rigorous explanation is required. In other words, if tweak makers expect people to buy these things they should do a better job convincing us that their products can be beneficial).
As far as listening results go the Blacklight fared similarly to the Harmonix Tuning Sheets, producing very subtle but audible sonic improvements. On the Dick Hyman Disc there was a slight improvement in resolution and transient attack, a phenomenon I also noticed on Patricia Barber's Cafe Blue (Prem-737-2). The Barber disc also demonstrated slightly better bass articulation with the Blacklight in place, giving some credence perhaps to the claim that mass loading the disc would firm up the bottom end. Listening to Frente's Marvin the Album (Attic MR 0083-2) and the Barber disc again the Blacklight seemed to open up the vocals a bit, the non tweaked discs sounding a little overly warm by comparison.
These minor benefits, however, do not outweigh the inconvenience of using the CD Blacklight. Not only do you have to spend a minute or so charging the thing before each use, it behaves much like the Statmat in that it does not like to remain centered on the disc during loading. What's worse, the CD player in question (a Pioneer Laserdisc transport) would often reject the disc if the blacklight was not perfectly placed; not to mention the fact that if the thing's not perfectly centered, rotational stability will actually suffer. In other words, this is not a "set it and forget it" kind of tweak, but a fiddly and irritating one. Combine this with the hefty price and the suspension of disbelief required to buy into why its changing the sound and you've got a tweak which ends up just slightly left of the Statmat on the ol' tweak line. Peg this one up at about eight.
Black Diamond Racing Pyramid Cones $85 (CAN) for three Black Diamond Racing Cones
I suppose once you've treated your CDs so extensively that they are impervious to instability, static electricity, jitter, bad miking, poor mixing, and bad music the next step is to attack the player itself; not to mention components further down the chain. A increasingly popular weapon in this attack is a trio of cones placed under a given component, de-coupling it from its shelf. Much of the popularity of "coning" can be attributed to the buzz surrounding Black Diamond Racing's Pyramid Cones, which have received an awful lot of attention of late (In case you're wondering (and I certainly was), the company got its start, and much of its experience with carbon fiber, in yacht racing).
About an inch in height the cones look exactly like what they are, little triangles of carbon fiber with smooth, rounded points. Subtle and nondescript in their matte black finish they feature a small 1/ 4-20 thread on the flat end which is compatible with bolts on certain equipment (i.e. B.A.T.) meant to hold the original feet.
As for the why and how of this tweak, the trend of the CD tweaks continues. While the Black Diamond product literature asserts that "vibration is having a far more significant effect on audio than most people had realized" it does not shed any light on why vibration is our enemy. Aside from pointing out that the cones use a "combination of high rigidity along with high damping rates" they don't say much about how their cones deal with this alleged problem either. At the same time, however, it's easier to conceptualize (even for a physics-challenged film major like myself) how a set of cones, especially ones which purport to have significant damping properties, could attenuate vibration by acting as a buffer between a component and shelf (while the rigidity of the cones keeps it solidly in place, avoiding added vibrations), than it is to understand how reducing a CD's static charge could change the way a laser reads its pits. Assuming that this damping could reduce effects like microphonics in "coned" equipment, the causal chain leading to the justification of such a product is a little more solid than for most of the other tweaks reviewed here. In other words, the suspension of disbelief factor is lower, giving the BDR cones a fair chance of a better placing on the continuum.
That fair chance becomes a sure bet once you hear what the BDR cones can do to the sound of a component. Of all the tweaks I messed with this was surely the most effective. The improvements were surprising to say the least, especially under my digital gear. Using the Pioneer transport and the Sentec DiAna DAC I listened to both the LD/CD player alone, and as a transport with the DAC (both alternately with and without cones). With the cones each component gave up more resolution and more low level detail creating a deeper, more seamless soundstage in which microdynamics were better preserved. In general the sound benefited from increased smoothness, delicacy, and three dimensionality making for more involving listening. In addition, these improvements were as audible and as substantial as upgrading a DAC or adding a good jitter reduction box, making the effects of the previous tweaks seem far less significant in comparison.
Using the BDR cones under other gear had similar results. Under the lovely Rega Mira integrated amp (see my review elsewhere in this issue) the cones opened up the sound a little and tightened up the bass a smidge but these improvements were not nearly of the same magnitude as those wrought with the digital gear. Under my Rega Planar 2 turntable, however, the effects were very positive. When I removed the original rubber feet and plopped three cones between it and the Ikea Lack table it sits on the sound took on a character best described as rock solid. Bass, image focus, and delicate low level transients all improved substantially making for much more palpable and involving sound. I'm so happy with how it sounds, in fact, that I'm going to leave it that way indefinitely. One note however, the Rega is an unsuspended table which reacts very well to being supported on light, rigid platforms. (the very light Lack end table and the BDR cones proved to be a synergistic combination - the Lack table is also spiked to the floor using a Target speaker spiking kit. This setup, by the way, makes for an ultra rigid stand, a great, and very cheap way, to support equipment). Suspended tables may react very differently to cones so try before you buy.
Throughout my listening I used the cones with their points down, BDR recommending that the point touch the more resonant surface, which in the case of a component on an MDF shelf, is the shelf. When using BDR's carbon fiber shelf (cheekily called The Shelf) it becomes the less resonant surface and the cones should point up.
The only negative experience with the BDR cones occurred in conjunction with yet another Rega product, the justifiably praised Planet CD player. The Planet, which comes with its own very soft, sorbothane type feet, did not benefit from the cones, sounding leaner, cleaner and doing a better job of rendering vocals on its own feet, thank you very much. One might thus assume that if the component you want to cone has been designed around a soft, compliant suspension then putting something as rigid as the BDR cones under it is going to fly in the face of that design and very possibly comprimise it.
Combine these unusually positive sonic results with the fact that the BDR cones are easy and practical to use, a "set it and forget it" type of tweak, and you've got a product which ends up damn near the coveted middle of the continuum. I would place them further to the left but, after all, it's still a lot to pay for three little carbon fiber triangles. I give em' a five and a half.
Golden Sound DH Cones: $70 US (set of three) DH Cones
Although less popular than the BDR cones, Golden Sound's DH Cones have been making inroads in the tweak world as well. Unlike BDR Golden Sound makes four sizes of its DH Cones, small (5/8"/$20), medium (7/8"/$40), large (1"/$50), and jumbo (1 3/8"/$70), supplying me with the latter. Much heavier than the BDR triangles the DH Cones are ceramic, finished in a glossy black on the sides and in natural white ceramic on the flat top. They also feature a sharper point than the BDR cones.
It is unclear whether the larger cones are supposed to sound better or just increase the distance between shelf and equipment. In fact, plenty more about these things is unclear, the Golden Sound product literature consisting exclusively of enthusiastic recommendations from happy customers. It neglects to offer anything in the way of technical or setup information. Having discussed some general thoughts on cones above I'll jump straight into listening results.
Listening to the DH Cones during the same sessions as the BDR cones I was able to put together a pretty good impression of what each was doing and how they compared. Under the digital gear the DH cones produced similar effects to the BDR's, yet to a lesser degree. As with the carbon fiber triangles the DH Cones helped bring out more ambient detail, a greater sense of delicacy and improved microdynamics, contributing to a more involving sound. Although they took on a slightly different tonal character than with the BDR cones, vocals also improved, sounding a little more open and natural. With the Planar 2 it was a similar story, the DH Cones producing a sound that was even closer to that achieved with the BDR cones. Performers became locked in the soundstage and the delicacy and involvement quotient rose substantially. With the Rega Planet CD Player the DH Cones, like the BDRs, could not improve upon the Rega's original soft rubber feet, bloating the bass and masking clarity in a similar way. Under the Mira integrated, however, the pattern reversed, the DH Cones sounding slightly more open than the BDRs; proving once again that such tweaks should be rigorously tested under various pieces of gear before buying. Not only are they likely to work very differently under various components in the chain, different brands and models will no doubt react differently to coning as well. From my experience with this kind of tweak the only constant seems to be that digital gear seems to benefit the most dramatically.
As far as our trusty continuum goes, I would place the DH cones just slightly right of the BDR pyramid cones, at about six. They're slightly less effective, and, due to very poor product literature, require greater suspension of disbelief to try.
Enacom Audio Noise Eliminators: Speaker ($220/pair) and AC ($95) Enacom Audio Noise Eliminators
Finally we have these odd little products from Combak Corporation of Japan. Looking like electric shotgun shells they consist of a small metal barrel with two bare copper cables emerging out one end (or in the case of the AC Enacom a standard 2 prong mains plug). Exactly what's in that little barrel is not entirely clear, the characteristically vague info sheet avoiding any detailed descriptions of what these things are doing. What is fairly clear is that there is a capacitor in there. One of the stated intentions of the noise eliminators, in fact, and the only possible function of the AC version, is to filter out RF noise making its way into both AC lines and speaker cables. Like the Audioprism Quietline wall wart filters they sit in series on your home AC circuit, filtering out anything above a given frequency (200Khz according to the manual). Apparently the speaker model works the same way but is also supposed to eliminate what they call "ringing distortion" caused by load resistance in the speaker/amplifier interface. How this happens is as elusive as a good explanation of exactly what constitutes "ringing distortion", and so some suspension of disbelief is, as usual, involved. As far as I'm concerned ringing distortion is a lot more likely to come from your phone than from your speakers.
I first did a little messing around with the AC version, cycling it in and out of an outlet near my audio system during a listening session. Having played with a few AC treatments before I'm familiar with the positive effects good RF suppression can have (see my review of the Innoye Synergistic Powerline Conditioner). Benefits can include darker sonic backgrounds, crisper microdynamics, and much more lively and involving low level performance in general. These, unfortunately, were not to be had with the Enacom AC filter, which caused no audible improvement once plugged in. It is possible that in greater number, used in several outlets around the room or house (like the much less expensive Quietline filters) that they would have a more noticeable, cumulative effect. However, I would much sooner put that money into a decent power conditioner like the Inouye, which will also protect your gear from surges and spikes.
Not expecting much from the speaker version of the Enacom I threaded them in parallel across the high frequency binding posts on my Newform Research R630 Ribbons (this the recommended configuration when dealing with bi-wired speakers) after having listened carefully to several selections of music. The Newforms are fed by about ten feet of Wireworld Atlantis speaker cable and were being driven on this occasion by the wonderful Rega Mira integrated.
Revisiting the amazing Ritmicas disc from Dorian Recordings (DOR-90245) it became slightly easier to decode the immensely wide and cavernously deep soundstage captured on this recording, the location of players coming into even greater focus. On Arvo Paart's Litany (ECM 78118-21592-2) I noticed a slight increase in low level detail and a more thorough rendering of subtle and delicate ambient decay; both common indicators of reduced RF interference. As for the mysterious "ringing distortion" it may very well be a factor in these improvements, but I'm holding out for a better explanation of what it is and what it sounds like.
Having lived with the Enacoms on the speaker for a few weeks now, however, I'd add that the system sounds smoother and more transparent than ever, the little caps having perhaps warmed up and broken in to a certain extent. So, despite this sketchy ringing distortion business the speaker Enacom turns out to be a pretty reasonable tweak, sitting in about at about six and a half on the continuum (they would have fared much better if not for the high price). Like the cones, a fair bit to pay for what they are, but they do work and are not a bad investment considering what they can do for a high resolution system, especially in RF rich urban centers. As for the AC Enacom, spend that cash elsewhere.
So, after all this tweak talk you may well be asking, if you had to pick just one of these things, which would it be? Well, as it turns out, the best system tweak I've come across lately isn't meant to be an audio accessory at all. It's the Ikea Lack table I mentioned earlier (special thanks must go to Ron Sanders for the hot tip on this one). If you want the maximum sonic benefit for the dollar spend twenty bucks on the table (the much nicer beech version is $40) and then another thirty on a Target speaker spiking kit (which even includes a drill bit and will leave enough spikes to do another table) and you've got an effective and attractive source stand for a song. If you're turntable or CD player is riding high on some wobbly, swaying, overloaded monstrosity than this is definitely worth a try. Combine this great homemade tweak with the runner up for value and effectiveness, the BDR pyramid cones, and you've got a killer source table for a fraction of what a good rack costs. If you still feel that, as an audiophile, it behooves you to be spending more money, I've got some little wooden pucks you might be interested in....
http://www.audio-ideas.com/articles/tweaks.html
In high-end audio the rules which govern the realm of normal consumerdom do not often apply. While mid-fi and mass market gear tends to be sold based on common and easily quantifiable factors like price, abundance of features, and reputation, the high-end hawks its wares with an avalanche of subjectivity, with lures which are less easily grasped but far more enticing to the truly addicted audiophile. Features? Value? Ha! Wrong end of the store pal. This stuff is sold with something you can't see on the spec sheet; the promise of soul stirring musical experiences in your very own home, of music which bears no trace of its reproduction. Once these sonic fruits are tasted, and the passion and dedication with which many audiophiles pursue them understood, the concept of loudspeakers costing more than luxury sedans begins to seem, if not sane, at least conceivable.
Venture a little deeper into the high end's lunatic fringe, however, into the innocuously named world of audio accessories, and things get downright perverse. By normal consumer logic when mature adults are spending substantial sums of money on cones, stones, pucks, wraps, sprays, and phosphorescent discs to be used in conjunction with their stereo systems something is terribly wrong. In high end audio it's called tweaking, and it's pretty popular.
Many would dismiss tweakery outright, claiming indiscriminantely that all such products (which often seem to have little or no rational explanation and little, if any, perceived value) are tantamount to snake oil, the people who use them gullible rubes, and that the whole business just contributes to the high end's image as a hobby for insane, obsessive madmen more interested in the quest for some holy grail of sonics than in enjoying music. The Continuum of Tweakery
While this may be true in many cases it's unfair to most serious audiophiles. Like most things tweaks and tweakers occur in degrees; or for purposes of convenience here, on a continuum (see graphic). Starting at left, or zero, is the practical, logical, inexpensive and often home made tweak, which may not involve purchasing anything at all; like floating the ground on your amp to avoid hum or putting tennis ball halves under your equipment for a little budget isolation. Somewhere in the middle are commercially available but seemingly logical and reasonable tweaks which don't cost a ton of money and aren't impractical or inconvenient to use. Our own Audio Ideas Imagers are a good example: cheap, effective, easy to understand and, once installed, can be forgotten about. At the far right (from seven to ten, say) are expensive, impractical, arcane tweaks which, if their alleged effects can be explained at all, are explained in very nebulous terms dealing more with the timbral signature of a violin or the placement of the soprano in your soundstage than with any understood acoustic or electronic theory. In other words these tweaks are so mysterious and so unusual that they require serious suspension of disbelief. More often than not these are what I call audio placebos, improving the sound only in the listener's mind. I would put products like the Bedini Clarifier in this final category (see my review in Vol. 17 #1)
As a tweaker I would place myself somewhere on the left side of the line. I'm inherently skeptical but when faced with a weird tweak I do my best to try to decide with my ears rather than with a sense of predestined impossibility. In other words I try to refrain from muttering things like "this can't possibly work". My approach is more like "I don't fully understand why this should work, and the supplied literature is pretty lame (and it usually is - see below), but let's see how it changes the sound." Besides, my job is to tell you how it sounds, not to delve into a deeply technical speculation of what's its doing or not doing.
With all this in mind, let's look at some tweaks which have been piling up at the AIG offices over the past few months.
Harmonix RF-11 CD Tuning Sheets: $22 (CAN) for a package of 8 Harmonix Tuning Sheets
The first of several CD-specific tweaks Harmonix RF-11 tuning sheets are thin, adhesive-backed pieces of plastic meant to be stuck on the label side of a disc. Although largely transparent (allowing you to read the label once applied) the sheets have green rings around their inside and outside circumferance and four, evenly-spaced cross shaped cut outs.
What is sticking a sheet of plastic to the backside of my CDs going to accomplish, you may well ask? Well, according to the back of the package (the only available literature) the sheet "helps achieve the full musical potential of the compact disc format by eliminating resonances and jitter induced by the CD drive mechanism and airborne vibrations." Upholding the grand tradition of audio accessory literature this explanation is not only confusing and vague it's so awkwardly worded that it reads like a bad translation (which it most likely is). The cardboard flap goes on to say that with the RF-11's stuck to a disc "the music reproduction becomes sweet and pure, free of hardness often associated with CD sound... extraordinary clarity, greater delineation of individual instruments and voices, and expanded sound-stage presentation." Hot dog! They've found a way to make a CD sound like an LP!
While the explanation of how they work might be frustratingly vague it's easy enough to conclude that weighing down a spinning object may, if done evenly, smooth and steady its rotation, and in the case of a CD, make it easier for a laser to read information off the disc.
Listening tests helped justify relatively central position on the continuum for the Tuning Sheets, revealing a very subtle but audible improvement in sound. Using a couple of sets of identical CDs (A Koss Classics edition of Beethoven's Ninth [KC 1003], which I happen to have in duplicate, and our own Test & Reference CD) I placed a sheet on one disc in each set and alternated back and forth between the bare disc and the CD wearing a sheet. Drums became a little tighter, transients and dynamics a little more lively, and, true to the promise made on the package, the delineation of instruments did marginally improve. It must be kept in mind, however, that these improvements were on a very small scale, equivalent perhaps to the difference between two digital interconnects. In other words, it won't make your CDs sound like good vinyl.
As for practicality and ease of use, there are worse (see below) but I'd say the likelihood of yours truly spending the better part of a day applying very expensive stickers to 300 odd CDs is roughly equivalent to that of AM purchasing a Radio Shack rack system and a stack of Kraftwerk albums this weekend. As for the money, I think it would be better applied elsewhere in your audio system or your music collection. If you're still keen to try these things consider one more thing: most car CD players will likely react negatively to CDs which are even slightly thicker than they should be. My life lesson in this involved a delightful hour with a pair of tweezers contorting myself in various ways inside AM's car. On the continuum of tweakery these rate a 6.5
QR Design Statmat $US 40.00 ea.
From one piece of plastic to stick on CDs we go to another. This time, however, both the goal, and the approach, are different. From the makers of the highly effective Ringmat (one of the best and easiest turntable tweaks extant) the Statmat is a very thin slice of polypropelyne film coated with a pattern of conductive inks which is meant to sit on the label side of CD while it plays. Unlike the Harmonix sheets it is almost weightless, non-adhesive, and is meant to be used and re-used with whatever disc is playing. Statmat
The stated goal of the Statmat is easy enough to glean from its name: to discharge static electricity from the CD as it plays. The conductive inks, we are led to assume, dissipate the charge into the air. Just as it is easy to see why the Tuning Sheets might help stabilize a spinning disc, it is logical enough to assume that the Statmat may help reduce or eliminate static electricity from CDs. However, while one may be able to infer that smoothing disc rotation may reduce reading errors, and therefore digital jitter, the assumption that a static charge is harmful to CD playback strikes me as less sound, if you'll excuse the pun. As for how static electricity could effect the reading of pits off a spinning CD, I'll leave that question to the electrical engineers and physicists among us. Needless to say the suspension of disbelief factor on this one is higher than with the Tuning Sheets.
Listening tests did not dilute my skepticism. Spinning various discs with the Statmat alternately on and off the CD in question produced mixed results. After several runs with both Chris Isacc's Wicked Game (Reprise CD25837) and Casandra Wilson's New Moon Daughter (Blue Note CDP 532861) I actually thought that the CDs sounded better without the Statmat, giving up more detail and a smoother more neutral sound in their naked form. Moving on to other types of music I could hear no discernable difference using our own T&R CD (the Bach cello suite at the very end) and Dick Hyman's From the Age of Swing (Ref. Recordings RR-59CD).
Not only did the Statmat not improve the sound of CDs it was a serious pain in the butt to use. Try getting something this light and flimsy (to say nothing of its propensity to become airborne with the slightest hint of a breeze) to remain centered on a disc as you try to put it in a player. With only mild suction keeping it on the disc I was always relieved to see it emerge from the player still attached to the CD, visions of trying to remove shredded bits of polypropylene from my drawer mechanism dancing through my head.
Combine the sketchy science with the lackluster sonic effects, the outrageous price (especially considering the materials!), and the inconvenience of using the thing and you've got a tweak which sinks deep into serious voodoo/placebo/mysterioso territory. I'd give it a ten but that would be unfair to all the insane tweaks which cost so much more money, so I'll give it a nine.
Audio Prism CD Blacklight: $65 (CAN) ea. Audioprism CD Blacklight
Yet another product designed to sit on top of CD comes from AudioPrism, the folks who brought you CD Stoplight (a green paint meant to be applied to the edges of CDs). With the CD Blacklight Audioprism has basically combined the goals of the Statmat and the Harmonix Tuning Sheets into one product, while adding one other dimension to the CD tweaking equation. Like the Harmonix sheets the Blacklight is fairly heavy, one of its stated goals to act as "an effective vibrational short circuit and rotational mass for dynamic stability." Like the Statmat it also uses a series of conductive lines to "effectively lower [the] electrostatic potential of the compact disc itself." The Blacklight, however, goes one step further by adding "a proprietary, frequency specific, highly emissive, phosphorescent surface layer" which "optically saturates the compact disc as well as the disc compartment." This last feature requires the user to "charge" the CD Blacklight by placing it under a light source for about a minute (fluorescent and natural light sources are said to work best), after which it will take on an eerie green glow, signaling that you're ready to apply the glowing side of the mat to the CD and play away.
As with the other CD tweaks, explanations or inferences about what's its doing are fairly easy to come by, the literature being slightly better than with the others. As usual it's when asking "why" that we have to suspend our disbelief. On the Blacklight box, for instance, Audioprism explains that stabilizing the disc through the addition of mass will increase "bass definition and slam"; that reducing the electrostatic potential of the disc will result in "less read interference with the laser sub-system, improving imaging and soundstage"; and that saturation of the disc compartment with black light will reduce "jitter resulting in a more open and smoother presentation." As for WHY these approaches should improve the sound in these ways we are, despite the eerie green glow, left in the dark ( This is not to say that all companies should have to explain exactly how all their products work. I think, however, that in a case such as this, where both the approach and the intended effects are quite unorthodox and unclear that a more rigorous explanation is required. In other words, if tweak makers expect people to buy these things they should do a better job convincing us that their products can be beneficial).
As far as listening results go the Blacklight fared similarly to the Harmonix Tuning Sheets, producing very subtle but audible sonic improvements. On the Dick Hyman Disc there was a slight improvement in resolution and transient attack, a phenomenon I also noticed on Patricia Barber's Cafe Blue (Prem-737-2). The Barber disc also demonstrated slightly better bass articulation with the Blacklight in place, giving some credence perhaps to the claim that mass loading the disc would firm up the bottom end. Listening to Frente's Marvin the Album (Attic MR 0083-2) and the Barber disc again the Blacklight seemed to open up the vocals a bit, the non tweaked discs sounding a little overly warm by comparison.
These minor benefits, however, do not outweigh the inconvenience of using the CD Blacklight. Not only do you have to spend a minute or so charging the thing before each use, it behaves much like the Statmat in that it does not like to remain centered on the disc during loading. What's worse, the CD player in question (a Pioneer Laserdisc transport) would often reject the disc if the blacklight was not perfectly placed; not to mention the fact that if the thing's not perfectly centered, rotational stability will actually suffer. In other words, this is not a "set it and forget it" kind of tweak, but a fiddly and irritating one. Combine this with the hefty price and the suspension of disbelief required to buy into why its changing the sound and you've got a tweak which ends up just slightly left of the Statmat on the ol' tweak line. Peg this one up at about eight.
Black Diamond Racing Pyramid Cones $85 (CAN) for three Black Diamond Racing Cones
I suppose once you've treated your CDs so extensively that they are impervious to instability, static electricity, jitter, bad miking, poor mixing, and bad music the next step is to attack the player itself; not to mention components further down the chain. A increasingly popular weapon in this attack is a trio of cones placed under a given component, de-coupling it from its shelf. Much of the popularity of "coning" can be attributed to the buzz surrounding Black Diamond Racing's Pyramid Cones, which have received an awful lot of attention of late (In case you're wondering (and I certainly was), the company got its start, and much of its experience with carbon fiber, in yacht racing).
About an inch in height the cones look exactly like what they are, little triangles of carbon fiber with smooth, rounded points. Subtle and nondescript in their matte black finish they feature a small 1/ 4-20 thread on the flat end which is compatible with bolts on certain equipment (i.e. B.A.T.) meant to hold the original feet.
As for the why and how of this tweak, the trend of the CD tweaks continues. While the Black Diamond product literature asserts that "vibration is having a far more significant effect on audio than most people had realized" it does not shed any light on why vibration is our enemy. Aside from pointing out that the cones use a "combination of high rigidity along with high damping rates" they don't say much about how their cones deal with this alleged problem either. At the same time, however, it's easier to conceptualize (even for a physics-challenged film major like myself) how a set of cones, especially ones which purport to have significant damping properties, could attenuate vibration by acting as a buffer between a component and shelf (while the rigidity of the cones keeps it solidly in place, avoiding added vibrations), than it is to understand how reducing a CD's static charge could change the way a laser reads its pits. Assuming that this damping could reduce effects like microphonics in "coned" equipment, the causal chain leading to the justification of such a product is a little more solid than for most of the other tweaks reviewed here. In other words, the suspension of disbelief factor is lower, giving the BDR cones a fair chance of a better placing on the continuum.
That fair chance becomes a sure bet once you hear what the BDR cones can do to the sound of a component. Of all the tweaks I messed with this was surely the most effective. The improvements were surprising to say the least, especially under my digital gear. Using the Pioneer transport and the Sentec DiAna DAC I listened to both the LD/CD player alone, and as a transport with the DAC (both alternately with and without cones). With the cones each component gave up more resolution and more low level detail creating a deeper, more seamless soundstage in which microdynamics were better preserved. In general the sound benefited from increased smoothness, delicacy, and three dimensionality making for more involving listening. In addition, these improvements were as audible and as substantial as upgrading a DAC or adding a good jitter reduction box, making the effects of the previous tweaks seem far less significant in comparison.
Using the BDR cones under other gear had similar results. Under the lovely Rega Mira integrated amp (see my review elsewhere in this issue) the cones opened up the sound a little and tightened up the bass a smidge but these improvements were not nearly of the same magnitude as those wrought with the digital gear. Under my Rega Planar 2 turntable, however, the effects were very positive. When I removed the original rubber feet and plopped three cones between it and the Ikea Lack table it sits on the sound took on a character best described as rock solid. Bass, image focus, and delicate low level transients all improved substantially making for much more palpable and involving sound. I'm so happy with how it sounds, in fact, that I'm going to leave it that way indefinitely. One note however, the Rega is an unsuspended table which reacts very well to being supported on light, rigid platforms. (the very light Lack end table and the BDR cones proved to be a synergistic combination - the Lack table is also spiked to the floor using a Target speaker spiking kit. This setup, by the way, makes for an ultra rigid stand, a great, and very cheap way, to support equipment). Suspended tables may react very differently to cones so try before you buy.
Throughout my listening I used the cones with their points down, BDR recommending that the point touch the more resonant surface, which in the case of a component on an MDF shelf, is the shelf. When using BDR's carbon fiber shelf (cheekily called The Shelf) it becomes the less resonant surface and the cones should point up.
The only negative experience with the BDR cones occurred in conjunction with yet another Rega product, the justifiably praised Planet CD player. The Planet, which comes with its own very soft, sorbothane type feet, did not benefit from the cones, sounding leaner, cleaner and doing a better job of rendering vocals on its own feet, thank you very much. One might thus assume that if the component you want to cone has been designed around a soft, compliant suspension then putting something as rigid as the BDR cones under it is going to fly in the face of that design and very possibly comprimise it.
Combine these unusually positive sonic results with the fact that the BDR cones are easy and practical to use, a "set it and forget it" type of tweak, and you've got a product which ends up damn near the coveted middle of the continuum. I would place them further to the left but, after all, it's still a lot to pay for three little carbon fiber triangles. I give em' a five and a half.
Golden Sound DH Cones: $70 US (set of three) DH Cones
Although less popular than the BDR cones, Golden Sound's DH Cones have been making inroads in the tweak world as well. Unlike BDR Golden Sound makes four sizes of its DH Cones, small (5/8"/$20), medium (7/8"/$40), large (1"/$50), and jumbo (1 3/8"/$70), supplying me with the latter. Much heavier than the BDR triangles the DH Cones are ceramic, finished in a glossy black on the sides and in natural white ceramic on the flat top. They also feature a sharper point than the BDR cones.
It is unclear whether the larger cones are supposed to sound better or just increase the distance between shelf and equipment. In fact, plenty more about these things is unclear, the Golden Sound product literature consisting exclusively of enthusiastic recommendations from happy customers. It neglects to offer anything in the way of technical or setup information. Having discussed some general thoughts on cones above I'll jump straight into listening results.
Listening to the DH Cones during the same sessions as the BDR cones I was able to put together a pretty good impression of what each was doing and how they compared. Under the digital gear the DH cones produced similar effects to the BDR's, yet to a lesser degree. As with the carbon fiber triangles the DH Cones helped bring out more ambient detail, a greater sense of delicacy and improved microdynamics, contributing to a more involving sound. Although they took on a slightly different tonal character than with the BDR cones, vocals also improved, sounding a little more open and natural. With the Planar 2 it was a similar story, the DH Cones producing a sound that was even closer to that achieved with the BDR cones. Performers became locked in the soundstage and the delicacy and involvement quotient rose substantially. With the Rega Planet CD Player the DH Cones, like the BDRs, could not improve upon the Rega's original soft rubber feet, bloating the bass and masking clarity in a similar way. Under the Mira integrated, however, the pattern reversed, the DH Cones sounding slightly more open than the BDRs; proving once again that such tweaks should be rigorously tested under various pieces of gear before buying. Not only are they likely to work very differently under various components in the chain, different brands and models will no doubt react differently to coning as well. From my experience with this kind of tweak the only constant seems to be that digital gear seems to benefit the most dramatically.
As far as our trusty continuum goes, I would place the DH cones just slightly right of the BDR pyramid cones, at about six. They're slightly less effective, and, due to very poor product literature, require greater suspension of disbelief to try.
Enacom Audio Noise Eliminators: Speaker ($220/pair) and AC ($95) Enacom Audio Noise Eliminators
Finally we have these odd little products from Combak Corporation of Japan. Looking like electric shotgun shells they consist of a small metal barrel with two bare copper cables emerging out one end (or in the case of the AC Enacom a standard 2 prong mains plug). Exactly what's in that little barrel is not entirely clear, the characteristically vague info sheet avoiding any detailed descriptions of what these things are doing. What is fairly clear is that there is a capacitor in there. One of the stated intentions of the noise eliminators, in fact, and the only possible function of the AC version, is to filter out RF noise making its way into both AC lines and speaker cables. Like the Audioprism Quietline wall wart filters they sit in series on your home AC circuit, filtering out anything above a given frequency (200Khz according to the manual). Apparently the speaker model works the same way but is also supposed to eliminate what they call "ringing distortion" caused by load resistance in the speaker/amplifier interface. How this happens is as elusive as a good explanation of exactly what constitutes "ringing distortion", and so some suspension of disbelief is, as usual, involved. As far as I'm concerned ringing distortion is a lot more likely to come from your phone than from your speakers.
I first did a little messing around with the AC version, cycling it in and out of an outlet near my audio system during a listening session. Having played with a few AC treatments before I'm familiar with the positive effects good RF suppression can have (see my review of the Innoye Synergistic Powerline Conditioner). Benefits can include darker sonic backgrounds, crisper microdynamics, and much more lively and involving low level performance in general. These, unfortunately, were not to be had with the Enacom AC filter, which caused no audible improvement once plugged in. It is possible that in greater number, used in several outlets around the room or house (like the much less expensive Quietline filters) that they would have a more noticeable, cumulative effect. However, I would much sooner put that money into a decent power conditioner like the Inouye, which will also protect your gear from surges and spikes.
Not expecting much from the speaker version of the Enacom I threaded them in parallel across the high frequency binding posts on my Newform Research R630 Ribbons (this the recommended configuration when dealing with bi-wired speakers) after having listened carefully to several selections of music. The Newforms are fed by about ten feet of Wireworld Atlantis speaker cable and were being driven on this occasion by the wonderful Rega Mira integrated.
Revisiting the amazing Ritmicas disc from Dorian Recordings (DOR-90245) it became slightly easier to decode the immensely wide and cavernously deep soundstage captured on this recording, the location of players coming into even greater focus. On Arvo Paart's Litany (ECM 78118-21592-2) I noticed a slight increase in low level detail and a more thorough rendering of subtle and delicate ambient decay; both common indicators of reduced RF interference. As for the mysterious "ringing distortion" it may very well be a factor in these improvements, but I'm holding out for a better explanation of what it is and what it sounds like.
Having lived with the Enacoms on the speaker for a few weeks now, however, I'd add that the system sounds smoother and more transparent than ever, the little caps having perhaps warmed up and broken in to a certain extent. So, despite this sketchy ringing distortion business the speaker Enacom turns out to be a pretty reasonable tweak, sitting in about at about six and a half on the continuum (they would have fared much better if not for the high price). Like the cones, a fair bit to pay for what they are, but they do work and are not a bad investment considering what they can do for a high resolution system, especially in RF rich urban centers. As for the AC Enacom, spend that cash elsewhere.
So, after all this tweak talk you may well be asking, if you had to pick just one of these things, which would it be? Well, as it turns out, the best system tweak I've come across lately isn't meant to be an audio accessory at all. It's the Ikea Lack table I mentioned earlier (special thanks must go to Ron Sanders for the hot tip on this one). If you want the maximum sonic benefit for the dollar spend twenty bucks on the table (the much nicer beech version is $40) and then another thirty on a Target speaker spiking kit (which even includes a drill bit and will leave enough spikes to do another table) and you've got an effective and attractive source stand for a song. If you're turntable or CD player is riding high on some wobbly, swaying, overloaded monstrosity than this is definitely worth a try. Combine this great homemade tweak with the runner up for value and effectiveness, the BDR pyramid cones, and you've got a killer source table for a fraction of what a good rack costs. If you still feel that, as an audiophile, it behooves you to be spending more money, I've got some little wooden pucks you might be interested in....
http://www.audio-ideas.com/articles/tweaks.html
The message in the music: popular culture and teaching in social studies.
highest form of musical expression, where the music is not merely listened to but felt. --Flaska 2000
Music is the universal language, or so the saying goes. Most people love music and may even find solace as they listen to their preferred musical genres. How often do songs "take us back" to a memory long since past? Because music can evoke deep personal meanings, social studies educators often use songs to emphasize larger historical moments. This personalization phenomenon continues as today's youths explore their own musical genres and store today's memories. Because music is a vital component of youth popular culture, preferred over even movies and television (Rideout, Roberts, and Foehr 2005), a teacher's understanding and application of popular music can be a powerful tool for instruction and learning in social studies education.
Popular music is most often used to enhance history education through an investigation of the music of a period, a practice suggested by Harris (2004), Bafumo (2004), and Palmer (1998). Music's full potential, however, is often underused, especially that of contemporary popular music. As social studies educators, our ongoing challenges are to provide students with effective tools to examine relevant societal issues critically and to make connections to the world of students; current popular music is a way to do that. Although traditional social studies education often focuses on covering essential knowledge to ensure high test scores and teachers often do not have enough time to include music, which some consider inappropriate for the classroom, teachers interested in a relevant social studies curriculum that facilitates active participation and problem solving may apply contemporary popular music in a variety of significant ways.
With myriad present social problems, meaningful integration of current issues is vital in social studies education. Music is a powerful tool that teachers can use for a serious examination of such social problems as poverty, racism, abuse, and addictions and such global issues as hunger, disease, and war. Following in the footsteps of former entertainers, today's artists, like the Black Eyed Peas, Dixie Chicks, and Green Day, focus on social issues that should be considered in our classrooms. Through the students' exploration of lyrics, music becomes a tool that offers social studies educators opportunities to engage in meaningful conversations about major social issues and to connect with students. Part of our responsibility as educators is to analyze the historical role that music has played in raising social consciousness, but more important, teachers need to use these examples to connect to the struggles that are being waged now.
Our Stories
Coincidentally, we both first stumbled on this music strategy as we began our careers as eighth-grade American history teachers, diligently plugging away at the prescribed curriculum and using district-approved textbooks and ancillaries. In a never-ending attempt to engage students, we tried more creative strategies such as simulations and cooperative learning. Our early teaching experiences remain similar in that we realized that we achieved little success in making connections with a majority of students in our classroom settings. We were increasingly disillusioned and knew that changes had to he made but were unsure of which ones. We both knew that if we wanted to ensure that students learn the material, we would have to challenge them through active learning. Although it often seemed as if the students were unwilling to participate, the real problem rested with our inability to make the content engaging. Our students were unable to make personal meanings with the material. Fortunately, that trend changed. We both have powerful stories in which our students provided the push that created an epiphany regarding contemporary popular music's potential for teaching and learning.
Midway through the inaugural semester as McCormack introduced material about acts and other historical events that happened before the American Revolution, her eighth-grade students demonstrated a determined resistance to learning. Perplexed by their blatant challenge, she was unable to connect with students, despite using the usual traditional pedagogical tools. On a morning drive to work, she heard a catchy tune played on the radio. Mentally running through the list of events to cover during that day's lesson, she decided to change the lyrics of the song to reflect the events leading up to the Boston Tea Party. "The roof, the roof, the roof...
http://www.accessmylibrary.com/coms2/summary_0286-17627131_ITM
Music is the universal language, or so the saying goes. Most people love music and may even find solace as they listen to their preferred musical genres. How often do songs "take us back" to a memory long since past? Because music can evoke deep personal meanings, social studies educators often use songs to emphasize larger historical moments. This personalization phenomenon continues as today's youths explore their own musical genres and store today's memories. Because music is a vital component of youth popular culture, preferred over even movies and television (Rideout, Roberts, and Foehr 2005), a teacher's understanding and application of popular music can be a powerful tool for instruction and learning in social studies education.
Popular music is most often used to enhance history education through an investigation of the music of a period, a practice suggested by Harris (2004), Bafumo (2004), and Palmer (1998). Music's full potential, however, is often underused, especially that of contemporary popular music. As social studies educators, our ongoing challenges are to provide students with effective tools to examine relevant societal issues critically and to make connections to the world of students; current popular music is a way to do that. Although traditional social studies education often focuses on covering essential knowledge to ensure high test scores and teachers often do not have enough time to include music, which some consider inappropriate for the classroom, teachers interested in a relevant social studies curriculum that facilitates active participation and problem solving may apply contemporary popular music in a variety of significant ways.
With myriad present social problems, meaningful integration of current issues is vital in social studies education. Music is a powerful tool that teachers can use for a serious examination of such social problems as poverty, racism, abuse, and addictions and such global issues as hunger, disease, and war. Following in the footsteps of former entertainers, today's artists, like the Black Eyed Peas, Dixie Chicks, and Green Day, focus on social issues that should be considered in our classrooms. Through the students' exploration of lyrics, music becomes a tool that offers social studies educators opportunities to engage in meaningful conversations about major social issues and to connect with students. Part of our responsibility as educators is to analyze the historical role that music has played in raising social consciousness, but more important, teachers need to use these examples to connect to the struggles that are being waged now.
Our Stories
Coincidentally, we both first stumbled on this music strategy as we began our careers as eighth-grade American history teachers, diligently plugging away at the prescribed curriculum and using district-approved textbooks and ancillaries. In a never-ending attempt to engage students, we tried more creative strategies such as simulations and cooperative learning. Our early teaching experiences remain similar in that we realized that we achieved little success in making connections with a majority of students in our classroom settings. We were increasingly disillusioned and knew that changes had to he made but were unsure of which ones. We both knew that if we wanted to ensure that students learn the material, we would have to challenge them through active learning. Although it often seemed as if the students were unwilling to participate, the real problem rested with our inability to make the content engaging. Our students were unable to make personal meanings with the material. Fortunately, that trend changed. We both have powerful stories in which our students provided the push that created an epiphany regarding contemporary popular music's potential for teaching and learning.
Midway through the inaugural semester as McCormack introduced material about acts and other historical events that happened before the American Revolution, her eighth-grade students demonstrated a determined resistance to learning. Perplexed by their blatant challenge, she was unable to connect with students, despite using the usual traditional pedagogical tools. On a morning drive to work, she heard a catchy tune played on the radio. Mentally running through the list of events to cover during that day's lesson, she decided to change the lyrics of the song to reflect the events leading up to the Boston Tea Party. "The roof, the roof, the roof...
http://www.accessmylibrary.com/coms2/summary_0286-17627131_ITM
The Making of a social history of popular music in Chile: problems, methods, and results.
COPYRIGHT 2007 Australian Consumers' Association
They've become an almost essential accessory for those who like to take their music with them. But there's a lot more you can do with some of the digital music players (often called MP3 players after a common type of digital file) in our latest test. You can use them to store photos you take while on holiday, if you run out of room in your camera. To watch a movie, if the screen size allows. To store and transport datafiles, say from your workplace to home, much like you'd use a USB drive. And, of course, to store and play back large amounts of music in digital format.
If you're a novice with digital music, see our article in CHOICE, April 2006, for detailed information, or go to www.choiceextra.com.au and click on Apr 06 under 'digital music'. Briefly, though, to transfer your CDs onto a digital music player, you have to copy ('rip') them onto your computer and encode them before you can transfer them to the player--a process made legal just late last year. You can also download music directly from a legal music website or download audio broadcasts (podcasts).
Memory matters
Players using flash memory use no moving parts to store your music (and data)--it's stored on a memory chip. This means they tend to be smaller and lighter than models with a hard drive, but they also hold fewer songs --roughly 500 can be stored on the flash players in this test (all with 2 GB memory).
Players with a hard disc drive, on the other hand, have greater capacity so you can store much more music, transport large files, etc.
Weight, size and shape
The MP3 players in our latest test--both flash and hard disc players--come in lots of different shapes and sizes. If you want one to carry around, a traditionally shaped, rectangular player is easily slipped into a pocket, especially if it's thin and relatively lightweight like the APPLE iPod Nano, SAMSUNG YP-Z5FQB Or CREATIVE Zen Neeon 2.
Although it's pretty small, you wouldn't want to carry the top-scoring IRIVERT10 around with you all day in a shirt pocket or stuck in your jeans' waistband, because of its unusually bulky shape.
The SONY NW-E005F, looking a bit like a USB key, is incredibly small and weighs just 25 g, the lightest in the test (see the photo, below). It's probably the best of the lot to take jogging or to the gym, but no good if you're looking for larger, easy-to-use controls or a bigger screen to watch movies on. For that sort of thing, you're better off with a hard disc player with a larger screen. The largest screen of the hard disc players in the test belongs to the COWON A2. It looks eminently suitable for displaying photos or watching movies, but comes at a price: $699, the most expensive in the test and the heaviest by far.
At the other end...
http://www.accessmylibrary.com/coms2/summary_0286-30069339_ITM
They've become an almost essential accessory for those who like to take their music with them. But there's a lot more you can do with some of the digital music players (often called MP3 players after a common type of digital file) in our latest test. You can use them to store photos you take while on holiday, if you run out of room in your camera. To watch a movie, if the screen size allows. To store and transport datafiles, say from your workplace to home, much like you'd use a USB drive. And, of course, to store and play back large amounts of music in digital format.
If you're a novice with digital music, see our article in CHOICE, April 2006, for detailed information, or go to www.choiceextra.com.au and click on Apr 06 under 'digital music'. Briefly, though, to transfer your CDs onto a digital music player, you have to copy ('rip') them onto your computer and encode them before you can transfer them to the player--a process made legal just late last year. You can also download music directly from a legal music website or download audio broadcasts (podcasts).
Memory matters
Players using flash memory use no moving parts to store your music (and data)--it's stored on a memory chip. This means they tend to be smaller and lighter than models with a hard drive, but they also hold fewer songs --roughly 500 can be stored on the flash players in this test (all with 2 GB memory).
Players with a hard disc drive, on the other hand, have greater capacity so you can store much more music, transport large files, etc.
Weight, size and shape
The MP3 players in our latest test--both flash and hard disc players--come in lots of different shapes and sizes. If you want one to carry around, a traditionally shaped, rectangular player is easily slipped into a pocket, especially if it's thin and relatively lightweight like the APPLE iPod Nano, SAMSUNG YP-Z5FQB Or CREATIVE Zen Neeon 2.
Although it's pretty small, you wouldn't want to carry the top-scoring IRIVERT10 around with you all day in a shirt pocket or stuck in your jeans' waistband, because of its unusually bulky shape.
The SONY NW-E005F, looking a bit like a USB key, is incredibly small and weighs just 25 g, the lightest in the test (see the photo, below). It's probably the best of the lot to take jogging or to the gym, but no good if you're looking for larger, easy-to-use controls or a bigger screen to watch movies on. For that sort of thing, you're better off with a hard disc player with a larger screen. The largest screen of the hard disc players in the test belongs to the COWON A2. It looks eminently suitable for displaying photos or watching movies, but comes at a price: $699, the most expensive in the test and the heaviest by far.
At the other end...
http://www.accessmylibrary.com/coms2/summary_0286-30069339_ITM
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