"...replaced the stock coupling capacitors with 33uF Panasonic FCs and the power filter cap with a 1500uF Rubycon MBZ. The sound improvement is huge (power filter cap made only a little difference anyway)
Any hint about fixing my front channel will be appreciated!
- now thats the way to do mods!
- with detailed RMAA results showing 33uf coupling cap changes.
- correct, not much sound quality improvement with filter cap C177, (for SB0460) as shown in your tests.
Have no advice on your LineOutFR 1, right channel problem, but hopefully, its an opamp problem. (assuming no driver corruption)