Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

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For the same reasons that......

205.188.199.51

Posted by Chris Garrett on March 12, 2001 at 14:29:41

In Reply to: Re: My final post on this thread. posted by renaissance on March 12, 2001 at 12:18:39:

a CD player can't read the pits/lands in the trough on a DVD Video Disc, or why a CD player can't read SACD/DVD~A discs either. It has to do, in some cases, with the laser's wavelength. The bits on a SACD disc are more closely spaced/deeper vs. CD and this is more or less the same for DVD~V. That's why every DVD~Vp has either two lasers, or two lenses to focus the single beam differently. They may look the same on the surface, but they ain't!

This can also be a software issue in the transport. The Sony 7000 DVDp could not PASS a DTS bitstream, let alone decode one. It didn't have the algorithm to make heads or tails of what it was looking at.
The Discs all use different formats, they are NOT the same internally and once you get over this hump, you'll have the answer to your question. There are no 24/96 CDs. Period. Your CDP can't read them, because none EXIST. Your CDP can't can't read DVD~V, DVD~A, or SACD discs (and in many cases CD-R & CD-RW) because they ARE NOT CDS.

For most practical purposes, 24/96 DACs are overkill, especially if one only does CDs and no upsampling. I'm sure the digital gurus will tell us that they can help, but I'm not smart enough to tell you why. They are being made/marketed more frequently than the 14, 16, 18, or 20 bit dacs and are easier to buy in bulk and install these days. DVD~V music discs, in the right situation, can give one the higer resolution that the 24/96 DACs are meant to produce, but your player has to pass the 24/96 signal w/o downconverting, either at the analogue OUTs or at the Digital OUT (usually done).

To give you an idea, my Toshiba 2200 w/24~96 DACs will only pass a 20/96 signal from the 6 '5.1' analogue jacks on the rear and it will only pass a 24/96 signal through its two channel analogue jacks, when playing a DVD~V music disc. I will only have the higher resolution in STEREO, not surround. The COAX/Digital OUT will only do 16/48 due to copyright/piracy issues. So, just because I'm playing a 24/96 DVD~V disc through my Denon 3300 with 5 kick-ass 24/96 DACs, doesn't mean that's what I'm hearing. It's very complicated and one best read the manual first, before buying.

Chirs

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