Project Pre Box S

Project Pre Box S

Free UK Delivery


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Project Pre Box S

ProJect's Pre Box S is the dedicated preamplifer for the company's Amp Box S and is designed to offer input switching and high-performance amplification, especially when used in conjunction with this power amplifier and other units in Project's Box Design range.

The Pre Box can drive one or more Amp Box S (both mono or stereo version), and utilises specially chosen low-noise IC's and dual mono circuitry to provide an astonishingly superior audio performance, despite its ultra-compact size. The metal chassis that this advanced circuitry is housed within has been built with shielded metal to reject and reduce any unwanted resonance or electromagnetic noise.



Frequency Response  20Hz - 20kHz (+- 0.2dB) 
Noise Floor  -100dB (A weighted) 
THD  0.001% 
Gain  8.5dB 
Pre-Out  1 pair of RCA/phono sockets 
Output Voltage Typically  1V at 1kHz 
Line-Level Inputs  2 pairs of RCA/phono sockets
Input Impedance  20kOhms
Trigger Out  2-pole 2.5 co-axial jack 
Outboard Power Supply   18V/500mA DC
Remote Replacement Battery CR2032/3 volts
Standby Power Consumption < 1 watt
Dimensions (in mm) Width x Height x Depth 103 x 36 x 103 (109 with sockets) 
Weight without power supply 630g 

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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