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Pro-Ject Head Box DS

Headphone Amplifier/Digital-to-Analog Converter
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Pro-Ject Head Box DS Details

Pro-Ject Head Box DS Headphone Amplifier with Digital-to-Analog Converter: The audiophile-grade headphone amp/DAC

Pro-Ject Partner

  • 3 digital inputs
  • Special USB
  • Ultra low-noise semiconductors
  • SMD technology for short signal paths
  • Analog output (RCA) for use as D/A converter
  • Analog input (RCA)
  • Headphone socket (6.3mm jack plug)
  • DC power supply (< 1 watt standby power)
  • Metal case shields the electronics from vibrational and electromagnetic interference
  • Luxury aluminum faceplate

The Pro-Ject Head Box DS is a high-end headphone amplifier with a USB input and built-in D/A converter. Having this feature set provides the ability for direct connection of digital sources to the Head Box DS for headphone listening. Additionally, an analog output allows the unit to function as a D/A converter for the same input sources when connected directly to a preamplifier.

The USB input is a 24-bit/96kHz asynchronous design delivering superb sound quality from a computer audio source. Additional digital inputs include a coaxial RCA and Toslink optical that can be used to connect to a digital output of a CD player or toehr digital device.

The dual mono amplifier topology uses very high quality component parts including ultra-low-noise ICs and high-reliable relay switches. All controls are located on the front panel for ease of use and the Head Box DS features a large and legible LCD readout. An outboard power supply is included.

Additional Information

Name Pro-Ject Head Box DS
Sub Title Headphone Amplifier/Digital-to-Analog Converter
Manufacturer Pro-Ject
Manufacturer Part# HEADBOXDS
Special price displayed in cart only N/A

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  • Power Output: 350mW/30ohms, 60mW/300ohms
  • Headphone Connection: > 30 ohms
  • Signal to Noise: 112dB (A weighted) at full output
  • Frequency Response: 20Hz - 20kHz/-0.5dB
  • THD: 0.0014%
  • Gain: 9dB
  • Headphone Jack: 3-pole 1/4" (6.3mm Æ) Co-axial Jack Line-Level Input, 1 pair RCA Jacks
  • Line-Level Output: 1 pair RCA Jacks
  • A/D Converter: Cirrus Logic CS4344. 24Bit/192kHz. Delta Sigma D/A
  • Supported Audio Format: PCM (LPCM). No support for multi-channel formats like Dolby AC-3 or DTS
  • Sampling Rates USB Input: 44.1kHz and 48kHz
  • Optical Input: 44.1kHz, 48kHz, 88.2kHz and 96kHz
  • Coaxial Input: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz and 192kHz
  • USB Input: 5 Pin Mini B Connector, USB cable supplied
  • USB Signal: Digital Serial Data Protocol USB 2.0
  • Operating Systems: Windows XP, Windows VISTA, Windows 7 and Mac OS Power, Supply18V/1,000mA DC
  • Power Consumption: 500mA DC, <1W in standby
  • Dimensions (WHD): 4.1” x 2.9” x 5.7” (103 x 72 x 144 mm)
  • Weight: 2lbs., 990g without power supply
  • Finish: Black or Silver
  • Audiophile grade headphone amp & 24bit D/A conversion
  • 2 year Warranty

    What's in the Box
  • Head Box DS Headphone Amplifier
  • DC Power Supply
  • Owner's Manual
  • USB Cable