Fix it, great amp, lots of power, sound great. I still have a stack of Adcoms, 5500, 5800, 565s, 7500. Old but good. They do run hot, and spin a meter pretty good. 565s are 2 ohm stable have to add fans. You can fry eggs on those.
There are a few repairman that can do it for you, or DIY. Lots of times its just so dirty it's out of balance.. I've cleaned them a few times and gotten rid of noise too. Just gunked up and out of balance.
Regards
