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From: fish@ihu1g.UUCP (Bob Fishell)
Newsgroups: net.audio
Subject: Re: Need recommendations on time delay/ambience systems
Message-ID: <503@ihu1g.UUCP>
Date: Thu, 30-Aug-84 17:19:47 EDT
Article-I.D.: ihu1g.503
Posted: Thu Aug 30 17:19:47 1984
Date-Received: Fri, 31-Aug-84 03:16:15 EDT
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Organization: AT&T Bell Labs, Naperville, IL
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I've been using the Advent SoundSpace control, which uses PCM and
RAM storage for the delay effect.  The unit is no longer in
production, but a few outfits still make time delay systems, like
the Koss.  I haven't heard the Koss myself, but from what I
understand, it could benefit from a better set of speakers than
the ones supplied with the unit.

I use a separate, 20-w/ch amplifier and a pair of EPI-100 speakers
for the rear channels. As Advent recommended that the rear channels
be driven at about -6dB below the primaries, this is pretty well
matched to my 80-w/ch main unit.

The effect you get varies considerably with the type of music
you are listening to.  It does a great deal to enhance the 
realism of live recordings and classical orchestral recordings,
as well as some studio-produced stuff that ordinarily has an
airy quality (e.g., Pink Floyd's "Dark Side of the Moon").

Most delay systems allow for user-variable reverberance and
delay, so you can create many effects to suit your tastes. I
find that I can no longer listen to music without it, as
ordinary stereo sounds rather flat and lifeless without it.

Unfortunately, a good delay system requires a substantial
investment.  I guess that's why they never caught on.
-- 

                               Bob Fishell
                               ihnp4!ihu1g!fish