I made a trade the other day with some Home Audio stuff that was given to me which I would never use so I traded it off for a Rasa (Panasonic) 12 channel Mixer which works great and they guy threw in an old Kasino Club 100 watt (Kustom) 4 channel mixer from the 70's. I hooked it up last night to some speakers I have that I have pushed with my CS800 and the Rasa Mixer and my BI-AMP powered mixer and the speakers sounded fine. Hooked them up to the Kasino head and if you even turn them up even a little bit the speakers did not sound clear and slightly distorted expecially on the bass notes of the music I was playing. Would you suspect caps or Output transistors or both? Or something else. The Reverb is out of it but that I would suspect should not cause any speaker distortion.