Just got off the phone with Audio Classics, was considering having them go through the 2270. Unfortunately, they only work on the more valuable 1960’s Marantz tube equipment, not the 1970’s transistor stuff.
I did find a shop that specializes in 2270 refurbs, but at a cost of $750.00 to $850.00 it’s hard to justify for a receiver that is currently not experiencing any issues. Oh well.
