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Genesis APM-1 subwoofer substitute

This speaker is somewhat renowned for problems with the subwoofer amp but, even so, I am interested in purchasing a pair. Because it appears to be a major problem/expense to find someone to repair them I'm looking for an alternative approach to this repair challenge.

I'm not able to locate a manual so don't have a way to evaluate the circuitry and am wondering if it makes any sense to disconnect the subwoofer circuitry on both speakers and use a single stand alone sub powered directly from the stereo amplifier. Another alternative to this potentially ill conceived approach would be to use a powered sub to each speaker. The challenge here would be to somehow find a way to feed them using the crossover circuitry in the existing speakers.

Also, these speakers have what appears to to be a involved set of controls that probably rely on all of the circuitry to be in place. Again, though, the lack of access to manuals complicates the challenge.

This issue appears to be somewhat common and these speakers are worth spending time and effort on their repair so I'm hoping there is someone out there with some advice that would either help with a fix or keep me from getting in over my head.
128x128broadstone

Showing 2 responses by jorgeparrapuppy

jorgeparrapuppy
257 posts
 
Broadstone: I have the manual that i can email you. I don't know how much you're ready to invest in these speakers. But check this out. Gary Koh from Genesis sends out his periodic emails updating Genesis owners on new stuff for new speakers, as well as the older ones. There is an upgrade to replace the entire plate amplifier and power supply to the APM-1s. From what i understand, the buyer can make this change at home. Now the price: $2500 per speaker, plus shipping. Do a search here on Audiogon for the APM-1s, as there are tidbits of information scattered about.
Contact Rick Cullen at Cullen Circuits to fix any plate amplifier issues you may have, or encounter in the future. I think he's in Paso Robles, CA. (wyred 4 sound)
jorgeparrapuppy
257 posts
 
Broadstone: A fellow, and very generous, audiogonner passed it on to me. I will be more than happy to do the same for you. He sent it to me in the form of a copy through email. Where would you like it sent?
FYI, Rick Cullen fixed one of my plate amps a few years ago. On the pair you potentially buy, it could be something as simple as checking and replacing the fuse(s).
Let me know how it works out.
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