Whole set of electronics, working fine. Previously installed on my Yamaha. It fits most 6-string TRB's, except the John Patitucci. Pickups can hardly find scratches on them. I replaced the treble pot with a 50k (originally 25k) and it works all fine, since 25k pot is not avaliable in my area. Just a simple solder work if you have a replacement. EMG 45DC: http://www.bestbassgear.com/emg-pickups-45dc.htm BQS System: http://www.bestbassgear.com/emg-bqs-system.htm Don't get it at over $300 as new. I do $180 shipped, paypal. (its international, so shipping may take around 7 working days) thanks for looking.