Is it bad to use several grounding points for a device? Especially when it comes to input and output?
I am doing a quasi c.bend on an old car audio system eq. So this just a general question, not really chip.
Long winding description:
It has 4 channels out (speakers) with a ground connection each, I put 4 rca female here. The 2 input channels share 1 ground, I put a stereo jack female here.
Sometimes there is better performance, lower noise, no loud pops, when I detach some grounding cables, but then other, random it seems, things does not work, like panning. I just can not figure out how it works.