Hi, previously i modded my SA-606 with new LEDs in the VU-meters and after that I havent really had the time to enjoy my amplifier, but now that I do i noticed that the right channel sounds like crap. When i adjust the balance to the right channel it sounds terrible. Doesnt matter what speaker pair i use, A, B or A+B. it doesnt sound at all, it only lets trebble through, it only makes random sounds or it has a scratching sound and so on. What can i do to save this amp? Any ideas anyone?