I'm collecting bits for an active crossover, 3 way, with +/- supply.
The circuit is effectively 3 parallel circuits per channel so each channel input is a phono to 3 phonos out.
I had thought the best way of grounding the 3 parallel circuits per channel for signal is at the input phono (which would be preamp or dac output) then the 3 outputs would go to 3 channels of independent power amp.
However what would be the best place to connect the supply gnd? at a star at the input or make the star at a single output?
The total circuit would be 18 OPA134's so supply current would be around
100mA I guess. Is the grounding critical for such low currents?
Thanks for any ideas.