Project Speed Box S

Project Speed Box S

Free UK Delivery


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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 offers 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:
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)

** 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)



 Nominal Speeds *33 and 45RPM / ** Optional 78RPM 
 Quartz Osccilator Speed Stability -+ 0.001% 
Turntable Connection  16V/190mA AC maximum
(3W Ppower 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. Please remember that postage and packing is completely free for orders over £50*. 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.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*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.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A
Saturday by 12 Delivery £35 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25

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