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sd5110

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  1. Yes, I communicated with him-- thanks. The unit weighs 86 pounds; I could remove the amp and transformer and send it for repairs, but with shipping and repairs it will be several hundred dollars and I'll still have a 20-y-o subwoofer (btw, the hum seems to get louder by the day!) Any ideas who I should contact, or what part of this forum, to see about a good modern replacement for that monster speaker?
  2. Yes, it is a 2-prong connector. It sounds great otherwise.... the hum stays at the same low level, so I can't hear it (at least consciously!) at moderate to high volume. The subwoofer is huge-- 15" speaker, box about 28" tall, and cost over $1000 when I bought it ... Any practical repair for a bad amp? Otherwise maybe I'll use it in another system where I usually crank the volume.
  3. I've been reading threads about 'hum' today and getting more and more discouraged. My Klipsch KTSW powered subwoofer was part of a THX 5.1 system that I put together 20 years ago. Frankly I haven't used it as much as I intended when I put the system together, and I've never cranked the volume very high. I have a mcintosh c39 preamp and mcintosh power amp (forgetting the model number, but those amps never clip signals, so I'm pretty confident I didn't destroy the speaker myself). The subwoofer hums loud enough to be useless. It 'works' otherwise. Indicator light is green; hum present even when speaker cables disconnected, as soon as power turned on. Volume control and frequency switch have NO impact on volume of humming noise. Any thoughts with this recognizably-limited information? This thing is so heavy I'm not sure how I'll get it to my car, let alone find someone in small-town Wisconsin to try to fix it...
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