Product Code: DAC Box DS2 Ultra

Pro-Ject DAC Box DS2 Ultra sale


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Pro-Ject DAC Box DS2 Ultra

High end Digital/Analogue Converter with DSD & USB 2.0

DAC Box DS2 ultra – state-of-the-art audio converter!

The advanced DAC Box DS2 ultra is an universal and very flexible D/A converter of the highest class. 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.

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


  • Top grade AK4490 D/A chip (32-bit PCM 768kHz / DSD256)
  • 6 Inputs: 1x USB, 3x optical (TOSlink®), 2x coax (S/PDIF)
  • Up to 32bit/768kHz asynchronous USB (XMOS technology)
  • DSD64, DSD128 & DSD256 (DSD over PCM)
  • Audio Class 2 (USB 2.0 High Speed) driver for Windows included
  • Up to 24bit/192kHz for optical & coax inputs
  • 5 selectable digital filter characteristics
  • 3 selectable sound modes
  • High-end ultra low phase oscillator with superior noise rejection
  • RCA line level solid-state analogue output stage
  • Ultra linear & ultra low noise circuitry
  • Separate power supplies for every stage with advanced filter technology
  • Upgradeable with optional linear power supply
  • Available in silver or black with or without side panels in Eucalyptus or Walnut

Technical Specifications

  • D/A-converter AK4490 32-bit PCM 768kHz / DSD256
  • Sampling rate converter AK4137EQ upsampling to 768kHz
  • Samplingrates USB: up to 32bit/768kHz, DSD256 (DoP)
  • Coaxial: up to 24bit/192kHz
  • Optical: up to 24bit/192kHz
  • DSD-support DSD64, DSD128 and DSD256
  • Filter settings 5 different selectable on front
  • Digital inputs USB B

                                            3 x Optical (TOSlink®)

                                            2 x Coaxial (S/PDIF)

  • Frequency response 20Hz - 50kHz (+0/-1dB)
  • Analogue output RCA/Cinch (Line)
  • Output voltage 2.2 Veff (switchable +6 dB gain gives 4.4 Veff )
  • Digital output Optical (TOSlink®)
  • THD 0.00085%
  • Crosstalk -117 dB (10kHz@0dB)
  • Signal to Noise Ratio 113 dB (20Hz - 20kHz)
  • Power consumption <1 Watt standby, 600mA max
  • Power supply 18V/1000mA DC (included)
  • Dimensions W x H x D 206 x 71 x 220 mm (Alu), incl. sockets

                                                    240 x 72 x 220 mm (Wood), incl. sockets

  • Weight 1410 g (Alu), without power supply

                            1880 g (Wood), without power supply

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