How do you make/what effects are used when you get that deep metal guitar sound from bass?
overdirve and distortion most likely nothing else
i just use the low octave fuzz effect on my floor pod... dose a good job
Turn up the gain and the treble?
gain and treble up high, overdrive and distortion helps, and pick with a pick and not your fingers. also active pickups would be good I assume, and humbucking pickups would be better than single coils.