Pro-Ject Speed Box S Electronic Speed Changer for AC Turntables


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.

Type: Turntable Accessories

Compatible with Debut Carbon, 1 Xpression III & Classic, RPM 5.1, Essential 2, 6-perspeX, RPM 1.3, RPM 9.2, RPM 10.1.

  • • Quartz-generated high precision electronic speed regulation with microprocessor control
  • • Sound improvement through motor running smoothness
  • • Clean power decoupled from mains interference
  • • Allows electronic speed change 33 & 45 rpm
  • • 78 rpm possible with optional accessory pulley
  • • Suitable for all turntables with 16 volt AC motor, up to 3 watt max. power consumption
  • • Metal case shields electronics from vibration and electromagnetic interference
  • • Small size allows installation close to record player
  • • Outboard power supply included
  • • Available in silver or black finish