stormwind13

This was a very informative thread that steered me away from getting the amps fixed in mine to going with an external amp solution. I ended up using an altec lansing model 9444b amp, and using the internal crossover function on my integra dtr7.4 to feed it a nice <60hz signal. The main difference between my conversion and yours, is that I took and used the existing speaker level input posts and internally disconnected them- then connected the speaker directly to the posts internally. This eliminated the need to order custom plates to replace the heatsinks.

i went ahead and bypassed the amp in favor of an external solution.

I called and left a message yesterday morning, no return call yet.

I have a pair of ksp-400 speakers, one with the hum problem, and one that will not come out of standby. I know the issue has been beaten to death in various threads some with external amp solutions and some that have been repaired. I do not think my right channel speaker failing to come out of standby has anything to do with the common amp problems in these units. I do have a background in electronics and upon inspection the lower control pod smelled of burned circuits and it appears something has internally leaked on the left side of the board (capacitor?) When plugged in the green light does light up, but does not change red upon flipping the power switch. Is there a member or admin that has the service manual for these? And if it is not repairable- is there any way to find a replacement control panel for speakers this old? On a side note, is there anyone here who has had luck having these repaired professionally? I know these are not common speakers by any means, but i do not want to give up on such a nice piece of equipment.