"Jim Lesurf" wrote in message
...
In article sj4qd.369029$%k.133110@pd7tw2no, Spiderant
wrote:

Snip

Yes, "digital is digital", but this is a bit of a catch-phrase as it does
not tell you how the "digital" is being employed. There are a number of
points that may be relevant:

e.g.s include:

1) Your LP replay system may have a very different frequency response to
your CD system. The cartridge may not have a flat response, there may be a
noticable arm-cartidge LF resonance, etc. The RIAA curve/loading may not
be
giving a flat response, etc.

2) Despite coming from the same 'original' digital recording, the signals
may have been processed in different ways before being recorded onto LP or
CD-A.

Maybe my hearing is shot. It certainly can't be my ancient budget
Technics SL-Qd3 turntable with a 20 year old needle.

Why not? Please see (1) above. For all I know, the departures from flat
response with LP replay are compensating for other departures elsewhere in
your system and giving a result you prefer.

snip

In part see (2) above w.r.t. your comments on "Neil closer to the center".
Also note that the level of crosstalk on LP replay systems is often of the
order of 20-30dB (This corresponds to a relative sound pressure level of
only about 10:1 or 15:1 emerging from the speakers.) This crosstalk may
also contain a higher proportion of distortion than on the 'speaking'
channel.

snip

Well, what you *could* do is get hold of a CD recorder, record a couple of
LPs onto CD-RW, then load the results into a computer along with the 'same
recordings' from CD-A and do various statistical comparisons. I suspect
you
would find various differences. Having done this, you could consider if
you
wished to modify your system in the light of what you find.

Slainte,

Jim


Hi Jim,

Thanks for your patient explanation. As I mentioned to Dave Plowman and
John Philips, I now know that whereas I was assuming that all things are
equal, in fact most things are very far from equal. I had a temporary
relapse and purchased five used LPs. Those LPs that didn't skip, crackled
so loudly that it was hard to concentrate on the music. While listening to
Richter playing a Beethoven sonata, at one point I found myself nodding in
rhythm to this persistent tick probably originating from a scratch in the
record. After a couple of hours of this experimenting, I tossed the records
into the trash, threw on some beautifully recorded CDs (listed in the
replies to Mr. Plowman and Mr. Philips) and remembered why I had given up on
vinyl years ago.

Thanks again for your informative and clearly presented replies.

Keep it lit,

Roland Goetz.