Pro-Ject Pre Box DS2 Digital Preamplifier

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Type: Amplifiers

Pro-Ject Pre Box DS2 Digital Preamplifer

Pre Box DS2 Digital - a true high performance all-arounder!  

The Pro-Ject Audio Pre Box DS2 Digital is an universal and very flexible pre-amplifier and DAC.

With an in-built AK4490 DAC, from high-end manufacturer Asahi Kasai Microdevices, you have the flexibility to switch between five different digital filters, shaping the sound to your preference. It offers full DSD256 support and upsampling of all input signals to 768kHz from USB, coaxial and optical inputs.

Upgrade your Existing Amplifier

Suitable for all source types, the Pro-Ject Audio Pre Box DS2 Digital boasts five digital inputs, analogue line level input and phono line in. The Bluetooth receiver also supports the newest aptX tech. All of these features make the Pro-Ject Pre Box DS2 Digital the most versatile audiophile pre-amplifier and DAC in its price range.

Flexibility in Shades

  • High-quality phono MM + MC preamp
  • 5 digital Inputs (1x USB, 2x optical, 1x coax, 1x Bluetooth aptX)
  • Top grade AK4490 D/A chip (32-bit PCM 768kHz / DSD256)
  • XMOS asynchronous USB (Up to 32bit/768kHz)
  • DSD64, DSD128 & DSD256 (DSD over PCM)
  • Digital coax input (up to 24bit/192kHz)
  • SPDIF Toslink inputs (up to 24bit/96kHz)

 Key Features

• Phono stage (MM/MC), Line In on board  

• 5 digital Inputs: 1x USB, 2x optical, 1x coax, 1x Bluetooth (aptX)  

• Top grade AK4490 D/A chip (32-bit PCM 768kHz / DSD256)  

• Up to 32bit/768kHz asynchronous USB (XMOS technology)  

• DSD64, DSD128 & DSD256 (DSD over PCM)  

• Up to 24bit/192kHz for optical & coax inputs  

• 5 selectable digital filter characteristics  

• 3 selectable sound modes  

• Headphone output on the front (6.3mm)  

• High-end ultra low phase oscillator with superior noise rejection  

• RCA line level solid-state analogue output stage  

• Ultra linear & ultra low noise circuitry  

• Full alu/metal sandwich casing in black  

• Optional wooden side panels available!  

Technical data

Pro-Ject Pre Box DS2 digital

2 analogue inputs 1x Line In (RCA), 1x Phono Line In (RCA)
5 digital inputs 1x coax (S/PDIF), 2x optical (TOSlink®), USB B, Bluetooth(aptX)
D/A-converter AK4490 32-bit PCM 768kHz / DSD256
Sampling rate converter AK4137EQ upsampling to 768kHz
Sampling rates 32/44,1/48/88,2/96/176,2/192/352,8/384/768 kHz
DSD support DSD64, DSD128 and DSD256
Filter settings 5 different selectable on front
Frequency response 20Hz - 20kHz (+0/-1dB)
Analogue out 6.3mm Headphone Out (front), 1x Sub Out , 1x Fix Out (RCA)
1x Variable Out (RCA)
Output voltage 2,2 Veff (switchable +6dB gain gives 4,4 Veff )
THD 0,00085%
Crosstalk -117dB (10kHz@0dB)
Signal to noise ratio 113dB (20 - 20.000 kHz)
Power consumption <1 watt standby, 600mA max
Outboard Power supply 18V/1000mA DC (included)
Dimensions W x H x D 206 x 72 x 200 mm (Alu)
240 x 72 x 200 (Wood)
Weight 1500g (Alu) without power supply
1780g (Wood) without powersupply

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