Were installed in a yamaha RBX and sounded great but I sold the bass and kept the pickups for my next P style bass. Have the original box, paperwork, and the sack that the pickups were packaged in. These are not Antiquity II's and were only in the bass a short time. Check out www.seymourduncan.com for the specs. Model number is 1044-11 $45 shipped to lower 48 states.