Pro-Ject Pre Box RS Digital Preamplifier Silver

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Pro-Ject Pre Box RS Digital Preamplifier

Pre Box RS Digital combines all features of DAC Box RS plus a very linear pre-amplifier with both solid-state and tube output stages, that can be selected alternatively. As in all our top-class digital products, we use PCM1792 DAC chips from Texas Instruments, but here we use 2 pieces in a dual differential mode to achieve ultimate fidelity. As a selectable feature a second DAC chip from Texas Instruments is on board, that can handle 32bit/384kHz. A high-class headphone output with selectable impedance for a perfect match to your headphones is also provided. 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. Perfectly combined with Pro-Ject CD Box RS disc drive, Pre Box RS Digital will give outstanding sound experience, because of a I²S connection provided via RJ45, that is able to give jitter-free disc playback.

Features
  • 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  
  • DC power supply (< 1 watt standby power)  
  • IR remote control included  
  • Available in black and silver
Technical specification
  • DAC:
  • DAC1 – 2 x PCM1792 24/192
  • DAC2 – PCM5102 32/384
  • Tubes: 6922 EH
  • Digital inputs:
  • 1 x USB 2.0 Audio 32/384 + DoP-DSD 64/128
  • 1 x RJ45 Sonic I2S for CD Box RS in Sonic Mode
  • 2 x S/PDIF 24/192, 4 x S/PDIF Optical 24/96
  • 1x AES/EBU balanced 24/192
  • Line-level input: 1 RCA/phono sockets
  • Input impedance: 33kohms
  • Analog outputs: Pre-out (XLR & RCA), Headphone (6,35mm jack)
  • Headphone impedance: 5 / 20 / 50 ohms switchable
  • Analog input sensitivity: 1,6V RMS for full headphone output
  • Frequency response: 20Hz - 50kHz (+ 0/- 0,1 dB)
  • Signal to noise ratio: -100dB (IEC-A)
  • THD: 0,005% solid state output/ 0,25% tube output
  • Master clock output: 16,9344MHz for CD Box RS in Sonic Mode
  • Outboard power supply: 20V/3A DC suitable for your country's mains supply
  • Power consumption: 300mA solid / 850mA tube / 90mA standby
  • Dimensions (WxHxD): 206 x 72 x 200mm (210 with sockets)
  • Weight: 1950g (without power supply)
You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.