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- From: shetline@bbn.com (Kerry Shetline)
- Newsgroups: rec.audio
- Subject: Re: Selecting an LD Player
- Message-ID: <shetline-301292233743@128.89.19.85>
- Date: 31 Dec 92 04:50:16 GMT
- References: <1992Dec29.171405.1480@lsican.uucp> <1992Dec30.073038.14692@uhura.neoucom.edu>
- Followup-To: rec.audio,rec.video
- Organization: BBN
- Lines: 42
- NNTP-Posting-Host: bbn.com
-
- In article <1992Dec30.073038.14692@uhura.neoucom.edu>,
- wlrc@uhura.neoucom.edu (William R. Cruce) wrote:
- >
- > In article <1992Dec29.171405.1480@lsican.uucp> michael@Canada.lsil.com writes:
- > >
- > >[...]Error correcting comes to mind here). If the only "audible" differences
- > >between players comes from the DAC portion (plus power supplies, etc), then with
- > >an outboard DAC, all CD/LD players should sound identical. Is this a true
- > >statement?
- >
- > No. It is not true. Theta makes a "CD Transport" which is a modified
- > Philips LD player [major mod is to correct for 'jitter'in the digital
- > output, according to their literature]. Fed into their ~$1000 outboard
- > D/A (I forget the model #) it sounds better than a Pioneer CLD-3070
- > LD player fed into same. Unfortunately the Philips video is no match
-
- I haven't heard a Theta unit, so I can't tell you whether or not it
- actually sounds better than any other laser disc player. But I do know that
- the *reasons given* for it sounding better were completely bogus
- techno-hype. The manufacture made claims regarding improved
- error-correction and mechanical stability as reasons for a gigantic leap in
- audio fidelity. The review I read in Video magazine prompted me to write
- this (unpublished) letter:
-
- -------------------------------------------------------------------------------
- To the editor:
-
- After reading your review of Theta DigitalUs Theta Data Universal Transport
- (Videotests, Sept. U92), I must say that not only am I disappointed that
- you were taken in by baseless high-end hype, but that you are helping to
- uncritically promote it. Even the cheapest CD disc transport will usually
- deliver error-free transfer of data, and certainly none but a damaged unit
- reaches the error rates that would effect continuous sound quality (as
- opposed to occasional and quite noticeable pops, clicks, or skips). Data
- read from a laser pick-up is digitally buffered and clocked out at a
- precise, quartz-crystal timed rate from the buffer. There is no way for
- mechanical jitter to affect sound quality in the way described in your
- review Q no way for all of this talk of massive high-torque motors and
- positive disc clamping to make a bit of difference.
- -------------------------------------------------------------------------------
-
- -Kerry
-