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Pro-Ject Pre Box RS Digital Pre Amplifier / DAC / Headphone Amplifier

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Ex VAT: £874.17

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Warranty length 2 Years
Brand Pro-Ject

Tech Specs

DAC: PCM 1792 24 / 192
DAC 2: PCM5102 32 / 384
Tubes: 6922 EH
Digital Out: USB 2.0, RJ45 Sonic I2S
S/PDIF: 2 x 24/192; 4 x Optical 24/96
AES/EBU: 1 x balanced 24/192 
Line Level In: 1 RCA/Phono Sockets 
Freq Response: 20Hz - 50kHz (0dB/0.1dB)
Signal To Noise: -100dB (IEC-A)
THD: Solid State: 0.005%, Tube: 0.25%
Analogue: Pre-out (XLR & RCA)
Headphone Output:  6.35mm Jack
Input Impedance: 33kohms (Ω)
Headphone Impedance: 5/ 20/ 50Ω Switchable 
Outboard PSU: 20V / 3A DC
Consumption: Solid: 300mA, Tube: 850mA 
Standby: 90mA 
Dimensions (WHD): 206 x 72 x 210mm
Weight: 1950g (Without PSU)

Product Description

Pro-Ject Pre Box RS is a high quality preamplifier, featuring a high-quality PCM1792 DAC, allowing you to connect all your digital sources, as well as an excellent headphone amplifier. The Pre Box RS offers impressive sound quality from all these features, while also offering selectable solid state or tube output stages.

An excellent match for Pro-Ject power amplifiers (either stereo or two mono power amps) and other models in Pro-Ject's RS range.

Great Performance

As in all of Pro-Ject’s top-class digital products, they use PCM1792 DAC chips from Texas Instruments, but a new feature in the Pre Box RS Digital is its dual chip mode to achieve ultimate fidelity. As a selectable feature, a second DAC chip from Texas Instruments is on board, that can handle up to 32bit/384kHz.

Included on the Pre Box Digital RS is a headphone output with selectable impedances for perfect matching with your headphones.

The Pre Box Digital RS offers 3-dimensional sound-staging, perfect micro dynamics and ultimate resolution combined with flexibility to use a wide range of digital and 1 analogue sound sources.

Combined with the Pro-Ject CD Box RS the Pre Box RS Digital will give outstanding sound experience, because of a I²S connection provided via RJ45 that offers jitter-free disc playback.

Why the Pre Box RS Digital?

- Switchable DAC chips: 2x PCM1792 or PCM5102
- 9 digital inputs: i²S, AES/EBU, Toslink, S/PDIF coax
- Analogue: Pre-out XLR/RCA/headphone, RCA input
- Headphone amp with adaptable output impedance
- Fully balanced double mono design
- Output stage switchable between 6922 tube & solid state
- Ultra-linear and ultra low noise
- Pure Class A circuitry
- Blue Alps volume control
- Standby-power consumption < 1W
- IR remote control included

Customer Reviews

  • grinccaffe

    18 Feb 2018

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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