I'm asking this on the behalf of an accoustic bassist friend (i play electric). He has a new double bass and a transducer pickup; i heard him on a gig last night and there was some loud and nasty bridge-popping (loud treble pops) coming through the PA and the signals was weak and lacked bottom end. i suggested he try using my sans amp BDDI as a preamp (he has no preamp) ... a few questions then. Is the BDDI a suitable pre for double bass? Can you use a double bass through a PA with a random sound guy and no preamp (as he is doing) or is this asking for a real bad sound? What is the cheapest way for him to be guaraunteed a decent sound in any venue?