Recent content by bkrpdx

I have heard it suggested that one may get better performance if you match your preamp to your amp(s), even manufacturer. I have a conrad-Johnson PV11 preamp which seemed to work much better with my c-j amps. Now that I have a pair of ARC M100 monoblocks, the sound is good, but not everything...

I just bought what appear to be a nice pair of M100 mono block amps. I hooked them up, and they ran for about 20 minutes. At that time, one channel cut out most of the volume (the music degraded) and began a rhythmic three-beat thumping similar to a heartbeat. This sound persisted even after...