Pre Box RS

  • Fully balanced double Mono Tube Design 
  • 3x XLR & 3x RCA inputs 
  • Superlative rigid and heavy luxury alu cabinet 

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How To Buy

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Find Your Local Retailer

Our preferred option is for you to visit a nearby store and buy what you need locally. Our authorised stockists are some of the finest specialist hi-fi retailers in the country, and they're equipped to give you the best after-sales and set-up advice possible - all in person. To find your local retailer, either click the 'Buy In-Store' button on your product page for exactly the right recommendation, or head to our comprehensive Where To Buy tool.

Buy Now, Collect Locally

If you want the added convenience of only having to pop-in to store when you know the product you want has arrived, you can use our Click & Collect-style checkout process. With Buy Now, Collect Locally, your purchase takes place online and the product is then delivered direct to your local supporting retailer; ready for you to collect when you're ready. Click here to find out more about Buy Now, Collect Locally.

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The Pre Box RS is designed to perform input switching and deliver high-performance audio pre-amplification. Arguably Box Designs best sound proof pre-amplifier with its superlative rigid and heavy luxury cabinet this model promises no global feedback and protects against potential vibrations. The pure class A operation and Low ESR Capacitors associated with the Pre Box RS eliminates any distortion giving you a high quality signal for your sound system.

The Pre Box RS comes with a handy IR remote control for alternating between inputs and volume adjustments. If you're partnering the Pre Box RS with other Box Design source components, it may be worth considering purchasing the Control-IT system remote. When coupled with the Amp Box RS the Pre Box RS delivers a true, comprehensive audio sound.

Available with Black or Silver casework.

Key Features:

  • Fully balanced double Mono Tube Design 
  • Ultralinear and Quiet 
  • No global feedback 
  • Very high input impedance 
  • Very low output impedance 
  • Pure Class A operation 
  • High Quality relay for input selection 
  • Low ESR capacitors 
  • Upgradeable with external power supply 
  • Regulated well filtered anode voltage 
  • Motor driven blue alps high end potentiometer 
  • 3x XLR & 3x RCA inputs 
  • 1x XLR variable output
  • 1x RCA record output 
  • Classy and elegant dip switches 
  • Antimicrophonic mechanical construction 
  • Superlative rigid and heavy luxury alu cabinet 
  • IR remote control 

Technical Data

Tubes: 2x ECC88 (6922)
Frequency Response: 20Hz - 50kHz (0dB/0.08dB)
Noise Floor: 95dB (A Weighted)
THD: 0.06%
Gain: 12dB (18dB Using XLR Outputs)
Pre-Out: 1x Pair RCA/Phono Sockets (fixed)
1x Pair XLR Sockets
Line-Level Inputs: 3x Pairs RCA/Phono Sockets
3x Pairs XLR Sockets
Input Impedance: 150kohms (Ω)
Outboard PSU: 20V / 3A DC
Power Consumption: 700mA AC, <1W In Standby
Dimensions: 206 x 72 x 210mm (Incl. Sockets)
Weight: 1950g (Without PSU)
Note: We’re constantly updating our website to ensure all our listings are as accurate as possible. However, the images and text on this page can be subject to change without notice, and errors and omissions are excepted.

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