So been enjoying my first DSP controlled active 3 way front setup and it's been life changing. Don't think I could ever go back to non-DSP, and certainly not to non-damping treated doors. That made a hoooog difference. But, I am still not enjoying anything below 60hz because I have not been able to run my sub. Anytime I would hook the left input RCA into the 1000/1 I'd get horrible noise and screeching. Right channel appears to be fine. I had checked my grounds and tried other RCA cable sets, no change. Now, I never thought anything of it but did notice it was significantly stiffer plugging in an RCA into the left channel. Well, took the time today to find out why. Survey says...
That doesn't look right. I knew this amp had been opened up before as all the fasteners are different than OE JL (I'm ordering some proper hardware if I can find some) so this prompted me to open 'er up.
Yeah, that's not good. If that's not a smoking gun... I'm not sure what is. Guess when you insert an RCA it dead shorts and causes the noise/interference. So I proceeded to cut out the cancer. Originally I tried to do it without disassembling the amp. Yeah, burned one of the pots attempting that... so off the end caps, fins, and cover came. Then removed the daughter board. Much easier.
Anyone know a source for these tiffany RCAs? Or do I have to retrofit something? Would I utilize that contact cage that was removed for the ground if I were to do that? I'm not sure what the person was doing who was in there before me, but there was booger soldering on the left input so guessing it was a botched "repair." Serial number on the backplate doesn't match the interior sticker either. Thanks for the input all, as always. Couple of gratuitous gut shots below because why not.