This is something that I have thought about, but I don’t remember ever seeing it anywhere. My thought is to have an instrument that appears to be a standard, passive bass, but has a 2 or 3 band eq. This way you could keep the “classic” or “vintage” look but still have the additional tone shaping of an on board eq. I suppose you could get close with 2 or 3 concenctric pots maybe. Anyone else have ideas or seen something like this before?