To the Group - Its time for me to add an active fiver to my arsenal and I'm looking at a Yamaha (of course), specifically a BB615 to compliment my passive 415. In reading this board (and some other review sites), I have seen a number of comments that refer to the Yamaha preamps as sounding bad or otherwise not being up to snuff. Unfortunately, I can't play any for myself because there are no dealers near here that carry the Yamaha BB's. I would like some input/feedback on what folks don't like about the Yamaha's preamps so I can figure out what to do. I like the feel of my 415 and would like to stay consistent with that. My ultimate aim is an active 5-string that will work in an Urban Gospel/R&B/Funk setting. I may consider one of the older Yamaha actives (BBG5N/BBN5A) but I can't afford the "Nathan East" models, so that isn't in play. The TRB's are not an option either as I'd like to stay with a 34" scale. I welcome your input and feedback!