If you can hear some sound in the speaker but in very very very low level in the maximum level of volume in amp what goes bad? My first thinking is that op amps ics may falt in the crossover section but now im thinkink that the failure is in the power transistors tha supplys 70watt to woofer (the first power transistor) and 60watt to twitter(second power tranzistor). What are you thinking guys?
p.s. the speaker is fine and there isn't any bad cap inside the amp. thanks
p.s. the speaker is fine and there isn't any bad cap inside the amp. thanks