These calibrated sets include one of Aguilar’s 5M pickups for the bridge and the 5J-HC for the neck. The AG 5M humbuckers are wired in parallel to recreate the classic Stingray® tone: clear highs, articulate mids, and powerful lows. Adding the AG 5J-HC lets you enjoy the deep, resonant sound of a Jazz Bass neck pickup without the 60-cycle hum. The AG 5M/J-HC pickup sets deliver all the qualities Aguilar pickups are known for: excellent string-to-string balance, consistent tone, and rich harmonics. They sound fantastic both passive and active. When paired with a built-in preamp like Aguilar’s OBP-1, 2, or 3, bassists gain maximum tonal flexibility. The AG 5M fits basses with string spacing from 18 to 19 mm. Lakland-style Musicman basses and many others use this spacing. Check the AG 5M dimensions for exact pickup size specifications. The AG 5M is not compatible with Ernie Ball Musicman five-string basses.