home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.audio
- Path: sparky!uunet!news.claremont.edu!jarthur.claremont.edu!jstimson
- From: jstimson@jarthur.claremont.edu (John Stimson)
- Subject: Re: Digital Coax, 1.5m, b/w cd & dat, <=$200: suggestions?
- Message-ID: <1992Jul22.220244.12573@muddcs.claremont.edu>
- Sender: news@muddcs.claremont.edu (The News System)
- Organization: Harvey Mudd College, Claremont, CA 91711
- References: <71178076422666@pepper.ra.anl.gov> <1992Jul22.195620.599@leland.Stanford.EDU> <1992Jul22.205937.27927@tvnews.tv.tek.com>
- Distribution: na
- Date: Wed, 22 Jul 1992 22:02:44 GMT
- Lines: 70
-
- In article <1992Jul22.205937.27927@tvnews.tv.tek.com> alexmi@soul.tv.tek.com (Alex Mitaru) writes:
- >In article <1992Jul22.195620.599@leland.Stanford.EDU> ianchan@leland.Stanford.EDU (Ian Hin Yun Chan) writes:
- >>sounds VERY transparent, but not bright. Bass is very controlled. It's wierd
- >>how this cable performs excellently both as regular and digital interconnects!
- >>- Ian
- >
- > Yep, it is wierd....
- >
- > alex
-
- Why is it weird? The purpose of any cable is to transmit an electronic
- signal be it a smooth or square wave. Why should something that's good
- at one be bad at another?
-
- But I really don't see why one digital interconnect would be better
- than another in the first place. The signal is digital! Any slight
- problems in the square wave pattern will be removed at the receiving
- end, where the signal is interpreted in terms of whether it exceeds a
- certain threshold value. You would have to have a REALLY bad distortion
- of the original signal for it to affect what the receiving end finally
- procduces, a much worse distortion than I believe could be caused by any
- wire.
-
- I have heard that the place where the cable makes the difference is in
- the clock signal, which is supposedly encoded in an analog signal sent
- through the same cable. Though I get the impression that this tends
- to cause "jitter", and would have no effect on the bass.
-
- I have an outboard DAC and a Denon DCD-670 cd player, and the DAC sounds
- distinctly better than the CD player. The digital cable I used in
- comparing the two was some cheap (1mm diam) Denon interconnect that came
- with the CD player. The DAC's analog outs were connected to the amp
- with $10 sony interconnects, and the CD player's analog outs were
- connected by MIT Zap cord. I managed to set things up so that I couldn't
- know except by listening which source was being played (same volume,
- of course), but I certainly could tell - almost immediately - which
- was playing just by listening.
-
- Now if an outboard DAC (Denon DAP-5500, by the way, first manufactured in
- 1988) connected through such crappy wire as that can best the internal
- DAC on my CD player (which is rather good for the money) maybe the answer
- is to buy "reasonable" cables, perhaps some of the decent sony $15 stuff
- or if you really want to splurge, Phoenix Gold at around $25 (I saw this
- stuff at a dealer and it looked pretty solid, anyone have impressions
- on it?) and sink the rest into a more expensive DAC...perhaps one that
- can compensate for possible jitter problems.
-
- Oh, the MIT Zap cord is slightly nicerthan my $10 sony interconnects -
- I tested this by running them off identical outputs from my DAC (It is
- a preamp with tape out and D/A out...when the tape source is set to the
- DAC, the tape out is in parallel with the D/A out) and set things up so I
- couldn't know which source was being played...There is a tiny difference
- in the treble: the MIT cable is slightly more detailed and clear. Maybe
- not a difference worth $40 though. I bet there are cables that offer the
- same improvement for much less (perhaps that Phoenix Gold stuff, or some
- good home-built interconnects).
-
- I asked before, and ask again: does anyone have a rational explanation
- for why a $100/meter cable should do better than any reasonably well-
- built cable in the <$30 range?
-
- Last time, I got one answer from some putz who said I should buy
- some $100 cable right away because HE thought it sounded better. He
- had no idea why, either. I don't want to see any BS replies like that -
- I only want you to respond if you really have a clue. "I bought Brand Q
- cable and think it sounds good - gee, I had better, since I paid $200
- for it!" is not what I consider a rational explanation.
-
- John Stimson
- Harvey Mudd College
-