My husband was an audiophile from way back and he passed away a year ago. His setup included a separate pre-amp and power amp. The power amp was having problems (it was an Audiotronix CC-II) and I just heard back that it cannot be fixed. His speakers are floor Mission speakers, his turntable is a Rega Planar and the pre-amp is Audio Research SP-5. I am looking to replace the power amp but don't want to break the bank. I'm OK with purchasing it used. I am clueless - help!