I just got a PLX2402 and man do I love POWER!!!! I've been running it with my Sadowsky Pre/DI pedal, and I have to use the XLR out from my pedal to the PLX just so I get a strong enough signal. My question is, what should I look for when choosing a pre amp? I'm looking at the Fender TBP-1, an older Alembic F2B, BBE SS or T, SansAmp RBI. when I go with a pre should I use a balanced TRS from the preamp Out to the balanced In of the PLX? I'm going to be using the Alembic this weekend and hopefully soon I'll have my hands on the Fender TBP. Thanks for your wisdom!!!!!!