Ok guys here's the deal. I got a Fender Bassman 60 amp that I run with my J-Bass. I like it a lot for that use, but it isn't working with my upright. I run an Underwood pickup and just can't get a good sound. At fairly normal levels, the G string (and the all the strings in general) is very boomy. When I turn a few knobs to fix this, the upper register gets very soft. I just can't seem to get any kind of a good sound without comprimising something. So any advice on tuning the amp for a good sound? Its got treble, bass, mid level, and mid prep knobs, along with a general volume knob. Additonally, it has a "enhance" switch, and a passive/active switch. What am I doing wrong? And if it can't be fixed, is there a good, small, relatively cheap amp that will work well with my upright? Thanks...Oh yeah! Forgot to say, I play in a 15/16 piece jazz band as well as a small 4/5 piece combo. In the combo I can play acoustically alright, but for some gigs because of the crappy bass I play, an amp is desirable.