CD other tweaks


Over the week-end, I had the chance to try an audio tweak.. sanding the outside rim of a CD, the impact was great. I have tried the paint route and had some success..but I had heard about using very fine grit sandpaper on the outside rim of a CD. I tried it and it was up there with major component changes. The most hear-able differences were: a more quiet or "blacker" silence between notes..and a sense or more detail..but more ease at the same time. Has anyone else tried this?
whatjd

Showing 3 responses by sean

Sanding or smoothing the edges can only achieve so much. I too was skeptical of all of this stuff ( I do NOT believe in "green marker mumbo jumbo") until i tried the Audio Desk Systeme. You know, the "CD circumsizer". It's a motorized platter with a variable speed control ( up to 9000 rpm's ) and an arm equipped with a tapered blade on it. You clamp the CD in place TIGHTLY and proceed to motor the disc up to speed while applying light pressure with the cutting arm. This does several things to the CD. First of all, it actually trues the disc. You would not believe how much "wobble" some of these discs have from the manufacturer. It also removes any burrs or rough edges. It also adds a downard taper to the edge of the disc. All of this adds up to a disc that is better balanced, has less diffraction / reflection problems while offering quicker data retrieval / read times. The results were a great improvement in terms of detail and resolution with a decrease in upper midrange / lower treble glare. Bass was also cleaner and especially improved on "muddy" or "murky" recordings. Pace actually seemed to pick up after cutting these discs especially, probably due to the bass not dragging any more. We tried this using several duplicate discs within the same system and came up with pretty consistent results. My girlfriend, who thinks all of this stuff is "goofy", noticed the difference right away. She told me that i better NEVER cut any of her discs before we did a few comparisons. After we did the first few comparisons using duplicate discs that i had and she heard the difference, she asked me to cut one of hers that she listened to all the time. She is no longer afraid to cut her discs and now thinks differently of SOME of my tweaks. Sean >
Sam, I have a Bedini Ultra Clarifier and Auric Illuminator also. I will say that the Bedini does work, but not for a long time. As to the Auric Illuminator, i haven't tried it yet even though i've had it for at least a month or so. I have to give it a shot and see what i think. I came to much the same thought process though as what you suggested. I ASSUMED that putting all three of these things together should work quite well. As to the Audio Systeme piece, i picked mine up locally at Music Direct. I know that the Cable Company takes these back in on return occasionally and sells them for considerably less than new price. If you email me, i'll get back to you tonight and fill you in on what i know about it. As to doing discs and having it be "irreversible", that is "kinda" true. You can always flatten the edges again by using a different blade. You also don't want to do discs that are overtly thin sounding. Like anything else, you learn what works and what doesn't. Sean >
I agree that marker'ing CD's doesn't do squat. I can honestly say that i've never been a believer in that "tweak" even though i've done side by side comparisons. Rodney from Audio Asylum conducted a test using markered, non-markered and "de-burred" discs. This was done using a CD burner and comparing them to the original in terms of data content and the time it took to correctly extract the data. The results showed that the de-burred discs had by far the fastest read and data retrieval times with the least amount of errors while the discs that were markered ran consistently MUCH slower and had far greater reading errors than a stock disc. Draw your own conclusions from this one. Mine AREN'T in favor of markering. Sean