This is an Audio Research wood cabinet that I bought new in 1992 for my Audio Research SP14 pre amp. I used it for a short period of time, but then decided to remove it. I sold my SP14 about 3 years ago so I no longer have any need for this cabinet. I had it stored in a closet ever since and forgot all about it. Shows really nice with no scratches or dents that I can see. Maybe just a bit dusty in the crevices.
I would imagine this cabinet will fit many other Audio Research pre amps (and possibly other components of theirs) since many of them were built on the same chassis. I can give you any measurements you might need to help in your decision.