Project Phono Box RS


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The Phono Box RS is Project's flagship phono stage and features an ultra-low noise and distortion pre-mplifier design philosophy. This uperlative performance is temphered with the ability of being fine-tweaked to enable the phono stage to match perfectly with a wide range of premium MM or MC turntable cartridges. The Phono Box RS has a special variable impedance control found to the front of the unit, this means that impedance can be adjusted while music is playing in order to find the optimum sound.

Some of the premium quality components found within the Phono Box RS include the SSM2019 pre-amp from Analogue Devices, and Linear Technology's LT1010 high-current buffer stage. These high quality parts and materials enable the Phono Box RS to offer a sound with extremely low levels of distortion or noise, it's very low output impedance means that it is not easily effected by the selection of interconnect cables being used with the machine.

The equalisation of the Phono Box RS is fully passive RIAA and DECCA, and can be selected via the switches found on the front of the unit, alongside the output gain (XLR and RCA) and a quick mute function. Cartridge adjustment can be done using the dipswitch layout found to the rear of the unit on the back panel.

This unit offers fully balanced, dual-mono circuitry and both XLR and RCA inputs and outputs, earning it recognition in a wide variety of high-end systems. 


Input Impedance  Fixed: 10 Ohm or 47kOhm
Variable: 10 - 1200 Ohm 
Switchable Load Capacity 100uF, 120uF, 200uF
Gain (MM/MC)  RCA: 40, 43, 60 dB
XLR: 45, 56, 66 dB
Output Impedance 50 Ohm
Signal to Noise Ratio  MM 89dB (97dB - A Weighted)
MC 83dB (91dB - A Weighted) 
Total Harmonic Distortion  MM: 0.01%
MC: 0.05%
RIAA Accuracy  Within 0.3 20Hz-20kHz 
Subsonic  18Hz/24dB per octave 
Inputs  RCA & XLR 
Outputs  RCA & XLR
Power Supply  /- 18V/300mA DC; 220-240V, 50Hz 
Dimensions in mm (Width x Height x Depth) 200 x 72 x 194 (200 incl. sockets) 
Weight 2kg

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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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