[net.audio] Need recommendations on time delay/ambience systems

mwb@umcp-cs.UUCP (Michael Blanks) (08/23/84)

I would like to hear from anyone who has a recommendation or opinion
on the use of time delay and/or ambience systems with stereo systems.
A prototypical unit would be one sold by Koss and available through
several discounters for approximately $250.  I have also seen a unit
made by Sony.
1) Do these systems enhance the feeling of realism?

2) What has your experience been with individual units?

Thanks in advance.

fish@ihu1g.UUCP (Bob Fishell) (08/31/84)

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