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Project Speed Box S

Free UK Delivery

As low as £129.00

Project Speed Box S

Project's Speed Box S is an extremely useful accessory for many Project turntables that don't offer an integrated electronic speed alteration switch. The Speed Box S performs speed adjustments by the simple push of a button, enabling you to switch the rotations per minute from 33 to 45 and back depending on which speed you require. 

The quartz regulation and filter circuit offer a more stable speed to allow the motor of the turntable to operate smoothly and undisturbed. This unit is compatible with the following ProJect turntables;

The Speed Box S will only work with certain Pro-Ject turntable models that have a detachable mains socket and a 16V AC power supply. It will not work with items that have a captive mains lead, or a DC power supply. To make your compliant turntable turn at 78RPM, you will need to purchase the additional 78RPM Pulley and a 78RPM stylus (More Info Here). Below is a list of compliant turntables...

 The following models will NOT work with the Speed Box S:

  • Elemental
  • Pro-Ject 1.2E
  • Debut III E
  • Debut II Phono S/B
  • Debut III Phono S/B
  • Debut III USB (more information)
  • Debut Carbon (All Models)
  • Essential Phono USB
  • Essential II
  • Jukebox (All Models)
  • 1 Xpression III Comfort
  • 1 Xpression Carbon
  • Xperience Comfort 
  • RPM 6.1 SB
  • RPM 6.1 SB SuperPack
  • RPM 9.1 SuperPack
  • Xtension (All Models)
  • Signature

The following models will NOT turn at 78 RPM:

  • Essential (all models)
  • RPM 1 Genie (all models)
  • Debut III E
  • Xperience (all models including Basic+, 2Pack, VPack and Super Pack)
  • 6 Perspex/ Perspex Anniversary
  • RPM 9 (all models including 9.1 and 9.2)
  • RPM 10 (all models, including 10.1 Evolution)
  • Signature

Who is Project?

Project started in the hifi business designing and manufacturing affordable stereo turntables in the early 1990s, beginning with the entry-level Debut model. It was a great success, like all other turntables on the market at that time were at least  £100 more expensive, without offering a performance benefit. Project has gone on to extend the range of turntables they offer at all popular price points and performance levels, through midrange to high-end models.

 Nominal Speeds *33 and 45RPM / ** Optional 78RPM 
 Quartz Oscillator Speed Stability -+ 0.001% 
Turntable Connection  16V/190mA AC maximum
(3W Power Consumption Maximum) 
Outboard PSU  18V/500mA DC 
Power Cable Length
(Turntable to Speed Box S) 
400mm approx. 
Dimensions in mm (Width x Height x Depth)  103 x 36 x 104
Weight 0.5kg 

Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.


Orders are sent via our couriers' DPD on a next-day-delivery service and usually, take between 1 and 3 days. 


Please use this link to find more detailed delivery information.


*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however, delivery to these locations will incur a charge and can only be sent via a 2-day service.

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