Dead Sub-10 question

[kliepmann]

So the other day while walking to my car i noticed a large subwoofer sitting next to my dumpster. At closer look I find its a Klipsch Sub-10! Im an electrical engineer and figured that perhaps I can fix it.

My question, are there common issues with these amplifiers? I tried powering it up and saw nothing (I was hoping for previous owner operator error, but i figured that it probably was unoperational) fuse is ok and so is the power supply portion of the PCB. I see no blown components or burn marks anywhere. Any ideas where to look?

Thanks

Kurt

[CECAA850]

My question, are there common issues with these amplifiers?

Welcome to the forum. There have been several posts about the amps in the SUB-10 going bad. Most people get a replacement amp from Klipsch. I've not read which particular component in the amp typically fails. If you're good with pc boards and amp topology, you might check it out and report back.

[lubbie]

So the other day while walking to my car i noticed a large subwoofer sitting next to my dumpster. At closer look I find its a Klipsch Sub-10! Im an electrical engineer and figured that perhaps I can fix it.

My question, are there common issues with these amplifiers? I tried powering it up and saw nothing (I was hoping for previous owner operator error, but i figured that it probably was unoperational) fuse is ok and so is the power supply portion of the PCB. I see no blown components or burn marks anywhere. Any ideas where to look?

Thanks

Kurt

Steve P at Klipsch USA Technical Support has been extreamly helpful. The Canadian Service Center for Klipsch is ****.. The repair is $60.00 USD exchanged.

My unit blew a capacitor right through the board. The only repair possible was replacement. The main failure on my unit was around the 470mF/100Vdc near the output transistors.