Yamaha PBCA Boom Arm Memory Lock Percussion Accessory

The Yamaha PBCA is a memory lock designed for percussion boom arms, serving a straightforward but essential purpose: it marks a fixed position on the boom arm tube so that every time you set up, the arm returns to exactly the same spot. For anyone who regularly assembles and disassembles hardware — whether for gigs, studio sessions, or production setups — this small clamp eliminates the tedious process of re-dialing positions by ear or eye. You set it once, tighten the lock, and your boom height and angle are stored mechanically.

Build quality follows Yamaha's percussion hardware standard — a compact metal clamp with a set screw that grips the tube firmly without scratching or deforming it. The package is minimal at roughly 10.7 x 6.4 x 0.3 cm and 1 lb, reflecting the simplicity of the component. Installation is tool-free and takes seconds. The primary consideration before purchasing is confirming that your boom arm's tube diameter is compatible, as the PBCA is designed for Yamaha's own hardware lineup and may not fit third-party stands with different tubing dimensions.