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Discontinued Product

Pro-Ject Speed Box S Silver Electronic Motor Control - SPEEDBOXSSIL

Product Details

Pro-Ject Speed Box S Silver Electronic Motor Control - SPEEDBOXSSIL

The 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.


  • 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  
  • DC power supply (< 1 watt standby power)  
  • Outboard power supply included 


  • Input: 18V DC
  • Turntable connection: 16V/AC 190m A DC, suitable for your county’s mains supply
  • Quartz oscillator: Speed stability +/- 0,001%
  • Power supply: 18V/500mA DC
  • Nominal speeds: 33 and 45 r.p.m. *** optional 78 r.p.m
  • Length power cable: Approximately 40cm

Approximate Dimensions :

  • Height: 1.42"
  • Width: 8.5"
  • Depth: 5.2"

Approximate Weight:

  • Unit: 1.23 lbs
  • Shipping: 3 lbs
California customers: Proposition 65 WARNING - learn more
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Key Features
33 And 45 RPM Nominal Speeds/ Quartz-Generated High Precision Electronic Speed Regulation With Microprocessor Control/ Suitable For All Turntables With 16 Volt AC Motor, Up To 3 Watt Max. Power Consumption/ Silver Finish
More reasons to buy the Pro-Ject SPEEDBOXSSIL from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Pro-Ject SPEEDBOXSSIL is Brand New.
  • The Pro-Ject SPEEDBOXSSIL Ships in a Factory Sealed Box.
  • Abt ships this product for free!
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