Check the listing for details. Yamaha DTX Pad Holder with Clamp. Condition: New. Listed at 39.99 USD. The Yamaha TPCL500 expansion clamp lets you add an extra tom to your DTX series electronic drum kit. The TPCL500 is compatible with RS502, RS700, and other 1.5"-diameter tube-style rack systems. The Yamaha DTX series is popular with Sweetwater drummers, due to its great feel and expressive performance. Expand your e-drum setup with the Yamaha TPCL500 expansion clamp! Yamaha TPCL500 Expansion Clamp Features at a Glance: Expansion clamp for Yamaha DTX series electronic drum kits Compatible with RS502, RS700, and other 1.