Guys, here's the schemo of master section (source select & control room).
After recabling and some chip "upgrade" I found that this old bastard really suffer from "modern" overcompressed music. Actually, think that input unbuffered network (10k pot / (5k1/3k3) is maybe too low for single op amp to drive hot signals. Note that this is non balanced configuration... Maybe I'm wrong :? If not, do you have some sugestion about rearanging this circuit? I'm talking about light green stage :wink:
After recabling and some chip "upgrade" I found that this old bastard really suffer from "modern" overcompressed music. Actually, think that input unbuffered network (10k pot / (5k1/3k3) is maybe too low for single op amp to drive hot signals. Note that this is non balanced configuration... Maybe I'm wrong :? If not, do you have some sugestion about rearanging this circuit? I'm talking about light green stage :wink: