Quick question: what's the bassiest pickup around?

(Explanation: My guitar is basically all maple and has these ultra trebly/high output ferrite pickups that requires me to turn bass/contour to max, treble to min and the tone knob on the guitar to full bass when playing live - the PA mixer then mods it to hell. A very bassy pickup would remedy this a little, I hope. I may downtune to B in time.)