hello. i'd like to get a new rack reverb for my project studio (now i
have an mpx-100...i'd like to step it up a bit). i'm looking at the
mpx-550, the tc m-one, and anything else in that $400-$600 range (new
or used). here is what is important to me:

-i'm only interested in reverbs, and perhaps some delays...but mostly
reverbs.
-it's important that the unit has xlr in and outs, and be very
transparent (except for the effect, of course). i've spent a lot of
money on high quality mics, preamps, and compressors, and i don't want
the last step in the chain (the reverb) to mess with that.

so can anyone recommend any reverb units in that price range that will
perfrom well in those two catagories?

thanks so much,
jon.