Pro-Ject Speed Box S2 50Hz - electronic motor control and speed change (black)

Article number: 11007482
RRP: 149.00 2 139.00

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    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 V AC motor, up to 3 Watt max. power consumption
    only works with EU models (with 16 Volt AC motors with 50 Hz) - american models with 60 Hz motors are not supported
    small size allows installation close to record player
    DC power supply (< 1 Watt standby power)
    sandwich casing made of alu/metal protects from vibrations and electromagnetic interference
    also available in black finish
    we are specialized dealer for Pro-Ject products - your authorized dealer in Leipzig

Product description

Upgrade to best possible turntable performance with convenient speed changeover through keypress!

A very useful accessory for many Pro-Ject turntables, that do not offer a built-in electronic speed change. The Speed Box S2 50Hz performs this change by the push of a button between 33 and 45 rpm! The quartz regulation and filter circuit gives a far better speed stability for smooth and undisturbed motor operation. Speed Box S2 50Hz is compatible with a lot of Pro-Ject turntables and some also offer the possibility to play 78 rpm records with the addition of a special accessory pulley!

Attention: Speed Box S2 50Hz - electronic motor control and speed change is also available in black.


These turntables with 16 volt AC motor are compatible with Speed Box S2 50Hz:

33/45 (78 with optional pulley):
Pro-Ject Debut III, Debut Carbon (only US version with 16 volt motor), 1-Anniversary, Art-1, 1-Xpression III & Classic, RPM-5.1

33/45 (no 78 available, because pulley can not be exchanged):
Essential, 2-Xperience Acryl & Classic, 6-perspeX, RPM-1.3, RPM-9.1X, RPM-9.2, RPM-10.1

Caution! Do not use Speed Box S2 50Hz with following turntables:
Debut III E, Debut II Phono USB, Debut Carbon (all non-US versions), Essential Phono USB, Juke Box (all types), 1-Xpression III Comfort, X-tension (all types)

For older turntables, consult your dealer!


The Speed Box only works with EU models (with 16 Volt 50 Hz AC motors)

American models with 60 Hz motors are not supported

Discover your own personal sound experience

In our living room studio "Klangvilla" in Leipzig we feature more Pro-Ject products which are at all times ready for presentation. You will have the option to be explained and demonstrated also other high-quality high-end devices by our sales manager who will be available for you. We can also recommend the appropriate wiring and other high quality Hi-Fi accessories. Please just simply arrange a date for demonstration or consulting service with our home Hi-Fi sales manager by e-mail or by telephone.

Technical Data

Pro-Ject - Specifications - Speed Box S2 50Hz - electronic motor control and speed change
Hersteller / Manufacturer: Pro-Ject
Produktname / Product name: Speed Box S2 50Hz
Produktart / Product type: elektronische Motorsteuerung mit Drehzahlwahl / electronic motor control and speed change
Eingang / Input: 18V DC
Ausgang / Output: 16 V AC 190mSA (bis zu 3W max) / 16 V AC / 190mA (up to 3W max)
Drehzahlabweichung / Speed stability: +/- 0,001%
Netzteil / Power supply: 18V/500mA DC
Frontfarbe / Face plate colour: silber / silver
Abmessungen B x H x T / Dimensions W x H x D: 104 mm x 35 mm x 104 mm
Gewicht (mit Verpackung) / Weight (with packaging): 700 g
Gewicht (ohne Netzteil) / Weight (without power supply): 300 g

Scope of Delivery

  • 1 x Pro-Ject - Speed Box S2 50Hz - electronic motor control and speed change in silver
  • 1 x DC power supply
  • 1 x operating instructions / user manual
Klangvilla in Leipzig
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