I have a Bartolini 4.7 AP (active preamp) that I bought a couple years back to custom-mod a bass. I never got around to it and need to sell some things. It is in the original plastic bag with schematics and paperwork. $234 from Bart, $186.99+shipping at The Perfect Bass. Will sell for $160 shipped. Also some pick-ups, New, in-box Bartolini 57J1L 5string Jazz pick-up. $65 shipped Used MEC 60105 Musicman 5-string Pick-up. Taken out of a 2005 Warwick Corvette FNA Jazzman. I put Barts in it and the pick-up above was the unused bridge pick-up. The MEC was used for about 2 years before I swapped it out, been sitting in a case since. Light wear but good-shape. $296 from MEC. $180 shipped at Dana B. Goods, will sell for $130 shipped. Used MEC 60103 Jazz 5-string Pick-up. Taken out of the neck of the Warwick mentioned above. $172 from MEC, there is a B-stock one from Dana B. Goods on EBAY for $95 shipped, will sell for $70 shipped. PM me if interested, I can send pics if needed. Thanks!