The Seymour Duncan SMB4D 4 String Music Man Ceramic Bass Guitar Pickup is a powerful ceramic magnet pickup designed specially to bring out the best tone of the mid- and late-'70s Stingrays. This hum-cancelling pickup offers a highly musical tone contour with a richly articulated bottom, major midrange, and lots of treble. It's got a nice, mild bark without being overly brash, and it's not at all harsh in the mid-range. The low end is full and strong without being mushy or foggy. It is best used wired in parallel.