The xxM55C-B is an M5 Soapbar-shaped bass pickup for the neck position. It is 4.50" (114.30mm) long and 1.50" (38.10mm) wide. The quad-coil design is splittable and features a deep tone. The pickup is designed for extended string width of 64 to 80mm in low-curvature fingerboards.

This is an "original series" bass pickup with a passive design. It is cast in epoxy to remove unwanted feedback and microphonics.