Hey. I got some question. I read from BP a couple months ago that Mike Pope said he plugged into effect return to bypass WW's preamp section. If Mike Pope does it, there should be reason, I thought. Since then, I often tried plugging into effect return when I play doublebass(equipped with Underwood pickup and signal goes through Sadowsky outboard pre/DI). I noticed that output volume was quite shy, but sound was very pleasing. Today, I plugged my electric bass into the return jack(at this time church's Workingman's 15), I was surprised. The sound was amazing!! Exactly what I was looking for!! No harsh treble, but still punch. With the bass's onboard EQ, I could easily get the sound I wanted. So please educate me. What did make the difference?? Impedence level?? Or just bypassing the preamp section?? On my way back home I was keep thinking like, what if I get a big enough powered monitor(if there is any) and use it with DI or, if having two preamps between the pickup to poweramp(one from the bass, the other from the amp) makes so much coloration(right english word??) of my bass sound, I should be able to get a decent sound when I used passive mode. However, it wasn't the case from today's experience. There was so much difference between going passive->using preamp from the combo amp and going active->plugging into efx return. or, what if just have a power amp and a cab?? Using only onboard preamp's EQ??