I just got a used Headway Band pickup and tried it tonight at practice for the first time. Sounded nice, but very very low output. I still have the David Gage Lifeline on the bass, and compared o it the band is super quiet. I had to crank the amp (Acoustic Image Coda) just hear it. Over the years I've tried all sorts of pickups on this bass -- K&K BassMax, Gage Realist, Lifeline, Revolution Solo, etc. -- and this one if by far the quietest. Is this normal or is it a dud? Does it really *need* some kind of a preamp to get the best out of it?