For me, I don't see the point in using outboard reverb units, when my 'studio' is almost totally
computer based. Factoring in the cost of the case, the PSU, circuit board etc., when it's just the
algorithm thats the important thing.
Here's a highly recommended and cheap reverb plug-in (with an appropriate name!):http://www.kvraudio.com/get/707.html
I prefer the convolution verbs, I understand that some people prefer the sound of certain algorithm
based verbs, but I feel that actually using an impulse of a real space is the better approach -
Actually, I don't think that reverb is the holy grail of ambient fx either, I use time-
stretching and (multi-tap) delays much more frequently. I think there's quite a difference between using a
huge reverb and creating a very wide spatial spread (by some other means).
When I was doing surround material, I experimented with some multi-channel reverbs - panning a
sound in some kind of created virtual space and setting up a short, bright reverb at the front and
a large, darker one at the rear. Panning a sound around this 'space' was interesting.
I do find the whole concept of reverberation fascinating, I'm very interested in the
inter-relationship between sound, the listener and the medium through which the sound propogates.