Peter P. Posted April 23, 2022 Share Posted April 23, 2022 Earlier this week I was down in my basement either working on a bike or working out, listening to my stereo. I usually listen to FM radio. The system is a Yamaha receiver, output to a kg sw subwoofer, with the high pass outputs connected to a pair of kg 2.2s. Everything was fine. On Friday I go down to the basement to work out, turn on the stereo, and only the left channel is working. I can hear the right channel intermittently struggling to do something. Sounds like an intermittent speaker connection issue. I disconnect the receiver from everything, remove it from the shelf, and make a test setup using one speaker. I check the speaker connections on the back of the receiver with no change. I check the inputs and outputs on the kg sw. No change. Must be the receiver's internals. I remove the cover and tap around, hoping to find a bad solder joint or something. Nope. Using my simple test setup, I learn both channels work. I then ohm out the inputs and outputs of the subwoofer figuring if something is open circuit I'll see a different resistance compared to its sibling. Nope. I put everything back together except I forgot to connect the kg 2.2s to the subwoofer's output terminals. I fire it up and I can hear the subwoofer doing its job. I measure the signal voltage at the inputs and outputs of the subwoofer to prove there's no signal lost. Nope; everything looks good. I reconnect the kg 2.2s, and it works! No 'splainin', Lucy... Quote Link to comment Share on other sites More sharing options...
geezin' Posted April 23, 2022 Share Posted April 23, 2022 Bad connection somewhere corrected by accident. I never discount a freebie. A gift from the universe. 1 Quote Link to comment Share on other sites More sharing options...
Audible Nectar Posted April 24, 2022 Share Posted April 24, 2022 This stuff happens. Had a u-terminal come disconnected from the speaker wire one time and learned a bit about the idea of "tension over time". A simple bump or just the fact that one day the tension on a wire was the proverbial "last straw" the problem surfaces and is corrected by a cursory inspection of the equipment. Quote Link to comment Share on other sites More sharing options...
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