I have a Korean Spector Legend 4 PJ and the EMG B30 R3 preamp. I don't like the tone from it. It isn't bad, but not what I want. I ordered one of those older spector tonepump preamps(the pre-trim pot rev.) to see what it does. Apparently, the Rachel Bolan Euro4 LX I played at guitar center, and loved the tone of, uses active EMGs. My legend has the passive EMG HZs in it now. Question is this: can I run passive pickups with this preamp? I have read all over in here that usually the pickups chosen are passive, but not all. Additionally, I may need different pots for tone and volume control because of the passive pickups, which is no biggie, but is that all? Has this been done by some Jedi bass-warrior yet? Any problems with it? Suggestions? Cautions? This will be new territory for me, and I want to try it before I go for all new pickups.