He stated earlier in the thread their both learning together throughout this.
We discovered the reason my amp(s) were getting too warm. Makes no good sense, but I had installer guy run a dedicated ground 0AWG from the neg battery terminal to the amp box, and the overhearing problem went away!
My installer guy, unlike many here, knows he does not know everything, but he has done many installs and won a couple of competitions too with his installs. He's experienced at installing audio equipment in cars, etc. I am not. I pay him for his experience and he does good work for me, and we collaborate on project planning, etc.
Makes perfect sense ! And glad you found that ground problem !
How? How and why would a ground that showed negligible resistance difference from the ground post on the battery (I measured it against a 2AWG jumper cable to the neg battery post) cause an amp not even being driven with audio inputs to heat up terribly? Seriously, I'm curious. I understand the concept of ground loops, but that amp heating was pretty ridiculous.
Not helpful to me (or anyone else) AT ALL! :-(
Baby steps. Yes I realise running a passive crossover on a component set of drivers makes my DSP moot for the equalization part of the DSP's job on those drivers (but not entirely!), but it's what I'm doing at first. And if it sounds good enough to me, I may stop there! But I also may NOT! That's why I had my installer guy run a second pair of speaker wires up front for POSSIBLE future expansion!!
My PDX-V9 Aline amp was heating terribly with NO inputs or outputs connected, only 12V+ and GND connected. I was gonna measure the amps going into the V9 amp, but at the point I intended to I had already decided to run a 0AWG dedicated gnd from the battery post, so all I measured was the resistance between the chosen gnd we'd chosen and a 2WG jumper cable to the battery's neg post, which was negligibly different Ohm-wise. Which does not at all speak to the power handing capability of our chosen chassis gnd of course. I'm just glad running that 0AWG cable to my battery's neg post cured the amp heating problem!
