I don't know what part of the country you're in, but I had to have a Primare SP 31 processor-preamp rebuilt. I sent it to Randy Vikan at Audio Elite in Western Washington state. He's also a factory authorized tech for McIntosh. He does a good job, and doesn't charge outrageous prices.
Hope things works out for you.
Regards,
Dan
Hope things works out for you.
Regards,
Dan