I am looking to refurb a mitsubishi DA-P20 and DA-A15DC
preamp/amp combo to original condition. The attenuator knob is noisy and being the unit is 30+ years old and lived in a smoking environment, I'm sure it has lost a little of it's golry.
Anyway, I am looking for recommendations for a shop in the Calgary area that is reputable for a refurb and proper test to ensure that the unit is at factory spec output. The unit has great sentimental value to me, so I want to get it looked after right.