Hey, I'd like to buy a RB Basic Passive Corvette 5str and make it active with an EMG setup, but I don't know which pickup to use. I prefer less noisy designs with great attack and growly mids, I'm looking for a very defined sound. Also, I'd like it to fit the 4 already drilled holes in the bass for pots and fit in its control cavity, I don't want to cut into the bass's wood. Also, do these systems/preamps come with blend knobs or just 2 volumes? I love blend knobs. I don't really need a mid control on the preamp btw, just bass and treble will suit my needs.