Apologies, I thought by posting in the repair forum I was in the right place.
I live in Philadelphia, Pennsylvania in the USA. I'm looking for all four of the amplifiers to be repaired into working condition, or a referral to someone who can fix them for me. I don't mind shipping the amps as I do Ebay for a hobby and pack boxes often.
I haven't been able to find a single soul to repair these units, but after today I feel confident someone on this forum can point me in the right direction.
I'm cool shipping or driving them locally!