Back in the day, I had two OCM 200's used as monoblocs (Used the xlr input). I was using an OCM 88 preamp which was a superb combo. Only issue was the step values on the remote volume control. I believe it was 1 db which I felt was too large.Living only an hour from the Belles factory, I took it to Dave. He modified it to either .5 or .75 db. not sure which but it was much better than the original value. You'll get many replies to your question, but the OCM 88 IMHO is a real sleeper preamp and a great compliment to your amp.
Looking for a new pre-amp!!
At present I have a Belles OCM 200 Amp and looking to up grade to a better pre amp. Looking at a Adcom 565
Sunfire pre amp and Aragon 18k or 24 unit. Also thinking about the Emotiva usp 1 pre amp. I a two channel guy and looking for the best unit with a phono section and great sound.
Any ideals as to the best pick for under a 1000 dollars?
Wayne