|
Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
|
|
|
Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
|
In Reply to: CD media composition difference preference? posted by Rocket_Powered on March 19, 2021 at 08:50:14:
Let's be tactful, and say that the gold/polyolefin "appeared" to convey a greater amount of detail.
I made gold CDs of Arturo Delmoni's "Songs My Mother Taught Me," and I treated 50 of those to cryogenic processing, and they sounded so good. I never had the money to do polyolefin. Which was IIRC like $3.65 per pressed CD, as opposed to 65 cents for aluminum/polycarb. Or IIRC $1.60 for poly Gold.
Back in the day, I did that 3-CD demo many times, at times for important music business personages... and the funniest reaction was when one immensely important music biz person, on blind listening, definitely preferred the aluminum/polycarb.
I asked him why he preferred that, and he deadpanned "Because it put me farther away from the music"(which he obviously had not been grooving on).
My lips are sealed; it would be a low blow to the producer and the artist and the engineer to name them.
Gold has a unique atomic composition--its outer ring of electrons has a gap in it that forms a perfect resonant trap for the frequency of the photons of Cobalt Blue light, so: the color Gold is "White Light minus Cobalt Blue."
It is also the case that gold is uniquely ductile. You can hammer out a 1-inch cube of gold, and it will cover a football field--very thinly.
It's the ductility of gold that enables it to "wrap" more closely around the rims or brinks of the pits in a CD. In comparison, aluminum is more like icicles, with spurs hanging over into space rather than conforming to the plastic substrate.
The thing about polyolefin is that it has a lower modulus of elasticity with a different Q factor, and so it has superior self-damping, and therefore it "flutters" less as it spins, and therefore needs less help from the Laser Read Correction circuitry.
amb,
jm
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Hmmm... - John Marks 15:00:19 03/19/21 (2)
- SHM made claims for their CD composition. - oldmkvi 06:54:48 03/20/21 (1)
- RE: SHM made claims for their CD composition. - geoffkait 12:08:04 03/21/21 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
