I am using a pair of TFM-35x amps bi-wired to drive my 2 channel system. I recently had them fully recapped and serviced by Rolland @ HiTech Audio in southern WA. Both amps are from the early 90's and both were functioning ok before the service. After the service I've fallen in love all over again. I had the CAPs upgraded to Poly, lights upgraded to Ice Blue LED, and many other minor things done. Rolland assures me that each of my freshly rebuilt amps could go toe to toe with any $2k-3k amp on the market today and these will blow them out of the water. I haven't had the chance to actually test that theory, however, I do believe him.
I'll try and post a couple pictures of my amps if I can figure out how.
What amps did you have in question?
I do have a friend that uses 2 - TFM-55x's, along with an A-753x powering his Martin Logan 7 channel setup.