Pro-Ject Pre Box DS2 Digital Preamplifier

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

The advanced Pre Box DS2 Digital is an universal and very flexible pre-amplifier and D/A converter of highest class. The built in D/A converter AK4490, from high end manufacturer Asahi Kasai Microdevices, has five different digital filters which let you shape the sound to your preference. It offers full DSD256 support and upsampling of all input signals to 768kHz from USB, coaxial and optical inputs. This realizes high-resolution sound playback with a rich sound field and bass representation with less distortion. It features five digital inputs as well as analogue line level input and phono line in. The BT receiver supports aptX for best wireless sound conversion. That makes it suitable for any source available. One variable, one fixed analogue output and also one to connect the Pre Box DS2 Digital to your subwoofer are available. The samplerate converter (AK4137) features three different settings (sound modes). All that makes the Pre Box DS2 Digital the most versatile audiophile pre-amplifier D/A converter in its price range!

Due to its class-leading audio performance Pre Box DS2 Digital is an ultimate high-end bargain!

Features

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

5 digital Inputs: 1x USB, 2x optical, 1x coax, 1x BT (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

Specifications

2 analogue inputs 1x Line In (RCA), 1x Phono Line In (RCA)

5 digital inputs 1x coax (S/PDIF), 2x optical (TOSlink®), USB B, BT (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 outputs 1 x 6.3mm Headphone Out (front)

1 x Sub Out

1 x Fix Out (RCA)

1 x 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 71 x 220 mm (Alu)

240 x 72 x 220 mm (Wood)

Weight 1570 g (Alu) without power supply

2000 g (Wood) without powersupply