The Pro-Ject Speed Box S is a very useful accessory for Pro-Ject turntables that do not offer a built-in electronic speed change. It performs with the push of a button, allowing extremely easy switching between 33 and 45 rpm. The quartz regulation and filter circuit provide optimised speed stability for smooth and undisturbed motor operation. The Speed Box S is compatible with Pro-Ject turntables as listed below.
Compatible with Debut Carbon, 1 Xpression III & Classic, RPM 5.1, Essential 2, 6-perspeX, RPM 1.3, RPM 9.2, RPM 10.1.