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RE: Damping CD Laser-Reader /Track more rewarding than CD treatments

Posted by Dryginger2 (A) on July 24, 2020 at 12:26:09

In Reply to: RE: Damping CD Laser-Reader /Track more rewarding than CD treatments posted by 13th Duke of Wymbourne on July 23, 2020 at 23:44:21:

Your Grace,

Yes, I did investigate digital accuracy thoroughly.

Audiophile reports are limited in value by differences in hearing, equipment, and room conditions but, according friends and our local high-end audio dealer, I have unusually sensitive hearing which could not discern any audible difference in musical tone, note definition, detail, pace, rhythm, or timing between 10 CD rips using 'Apple Music' with Error Correction and those from the specialist application 'dBpoweramp'. The only very noticeable differences came in the large extra investment of time required when using 'dBpoweramp' for the re-checking of many individual tracks up to 17 times and the time-consuming job of transferring customized metadata. (I depart from downloaded styles.)

Dropped the noise floor and accessed more detail by CD pre-treatment with Walker Audio's $199.00 'Talisman CD/DVD Demagnetizer. And cleaned each CD with $99 Liquid Resolution. The laser's ability to read a 'one-hour plus music CD' at 6 megabytes-per-second in 120 seconds is dependent on a clean surface.

The general principle I found was that the faster the rip, the better the sound quality. The exception to the rule was the addition of MuMetal to the top of the ripper which slightly increased the speed but made the ripped music fatiguing to the ear. However a single layer of MuMetal sandwiched between cork under the computer's external music drive further opens up the music without that fatiguing effect.

Relocated the ripper's power circuit board to an external aluminum housing and replaced the 12 volt/3amp AC adapter with a linear power supply. Allocated separate AC circuits for ripper's LPS and laptop using a Shunyata Venom Digital cable to completely isolate the computer.

Substituted brass for magnetic screws throughout the ripper and LPS (particularly important near rotator-engine, laser-reader/track or carrying LPS current. Used PTFE thread wherever metal touched metal in either casing. Used an iPurifier2 at the start of the USB cable and iDefender before the laptop connection.


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