I have searched and found some info, but not specifically what I am looking for. I am swapping out the pups in my p/j bass. I need more balls in my bridge pickup and prefer a little more variety in my tonal palate. it is currently a VVT, complete passive setup, and I plan to keep it as a 3 knob set-up with little to no routing. I think I can fit a single 9v battery with no modification. I have played the spector euro 4 with the p/j setup with active emg's and it had a fantastic rock tone. that is the versatility and tone I am aiming for I am looking at two options currently. The EMG-HZ pups with the active BTC-HZ control system. This would give me good control over the tone with the bass and treble active pre, and I really prefer the blend over the dual volume controls. I am also entertaining the EMG PJ set with active pups, passive controls. I really think this could be a great option for rock music, although the dual volume control is less than ideal. I would love some input on the pros/cons/specs/experience of each of these setups and/or other ideas. Also, is an active EQ pointless on active pups?