The thread title is a bit confusing, but I didn't know how else to word it. I'm looking for a small (lightweight is a must) combo that has an effects loop return that will allow a pure signal from the source. In this case, I'll be using a Tech 21 SansAmp VT Bass pedal as a stand alone pre. I don't want the combo amp to color the tone whatsoever, so a transparent signal from the pre is critical. I'm thinking a minimum of 100 watts should suffice. Not looking to spend a fortune, maybe around $350-$400. Any suggestions?