I bought the TFM-35 power amp off a budy who was silly enough to let it go. Let me say this thing is built like a tank, it's big and brute and up to what ever you want to throw into it's inputs. Every amp or receiver that I have owned I have been able to get hot, and even push a few into thermal protection - this thing won't even get warm! I'm pushing and early Bose Acoustimass system with it. I've also teamed the TFM up with a Carver HR-742, using it as a preamp. My Monster power line conditioner is still in storage ( Just got back from a WESTPAC) and this system still sounds great, although I do encounter some buzz from what I think is a dirty AC line, of course. Anyhow, my opinion of the TFM is solid, it's BRUTE, sounds great and the VUs are fun to watch :) hit me back at firstname.lastname@example.org if you want pics, or any other info about this beast. Bottom line: I love it.