lawpau

Leonc, I have a KSW-10 series subwoofer and had the same problem over 1 year ago. I also have a Pioneer Elite integrated amplifier/receiver. I simply ordered a replacement amplifier from Klipsch and replaced it myself and the subwoofer works awesome again. I have learned from Electronics Engineers that the amplifiers on various brands of subwoofers burn out after 5-6 years on average. I purchased mine used and am not sure how old it was but most likely it was over that age. That is usually the simple solution. If you have an electronics background and a variety of test equipment, you would have to take out the amplifier and test out each component on the board until you find the one that is "fried", find a replacement and solder it on the board.

After many subwoofers get older, sometimes it is simply the amplifier that goes. I have an older KSW-100 that recently went a couple of months ago. I called Klipsch, ordered a replacement amp unit (cost was approx. $170), and did the replacement. The unit works fantastic again. Another reason fuses can blow is that you may have an electrical "short" in which the two leads may be touching each other. Another reason is that the amp rating of the replacement fuses you are using is too low. However, you also have to be careful about choosing a fuse with too high an amp rating which might never blow thereby instead causing your amplifier to blow out.

I already swapped the amps. I have a Model KSW-100, not KSW-10. It does have a plastic cover on the back of the amp. What I found out is that the original amp had two extra screws which held the plastic cover in place. The replacement amp did not have these two extra screw holes. I seated the replacement amp into the plastic cover, ran the wiring through a small hole at the bottom of the cover, and connected the two wires from the amp end to the subwoofer just like the original was connected. It works and sounds great again. I took some photos of the work and can share.

I have a Klipsch KSW-100 powered subwoofer. I recently purchased a replacement amplifer direct from Klipsch. I have removed all of the screws from the back of the unit and see that there is a plastic cover surrounding the current amplifier. I am not sure exactly how the plastic covering is attached to the current amplifier and in how many places. I am wondering how to separate the plastic housing without damaging it so I can replace the amplifier. I appreciate assistance on this. Thanks.