ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi. This happened suddenly, right after finally setting up my rear speakers so I'm freaking out a bit. I set the switch from "off" to "2" and a loud pop occurred. Then the switch was swinging back and forth loosely. I took the amp out and flipped it and could see the physical switch in the hole was also swinging freely and not locking on either side. Taking the bottom off the unit verified this. I can see the switch moving the connectors a bit, but I can get to it to see what's wrong. Obviously something broke as the front speakers work fine, but the back don't. Is there a fix for this?
Alternatively, would it be possible to splice two speakers into one channel, or would that be too much for the amp to handle?
That switch sits very close to the output amplifier rail voltage reservoirs (the two large, gray capacitors there). I would guess that something got too close and made contact where it shouldn't. It is also possible that the speaker wiring got crossed and something shorted regarding those. It shouldn't be too difficult to find a replacement rear speaker switch but you will need to carefully review all of that wiring.
-sonavor
I don't think it's a short. I think the switch is physically broken, hence the slipping back and forth with no resistance.
I see. It wasn't a pop with a flash and some burning. It is just that the switch is loose and making/breaking connections to the speaker. You are describing the pop or thump one hears with from speakers when power is suddenly removed or applied without any muting.That switch should be easy to find a replacement for.
Actually, it was a physical pop. Like plastic snapping. It didn't come from the speakers.