DISC Benchmark DAC2 HGC Digital to Analogue Converter, Silver

2,412.00 RRP 2,425.00 (including VAT @ 23%)

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  • Professional Digital-to-Analogue Audio Converter
  • 5 Digital + 2 Analogue Inputs
  • 3 Analogue Outputs + Digital Pass Through
  • Asynchronous USB Audio Interface
  • Silver Finish

DISC Benchmark DAC2 HGC Digital to Analogue Converter, Silver

The Benchmark DAC2 HGC digital-to-analogue audio converter is an improvement on the DAC1, with lower noise, lower distortion, improved accuracy, an advanced digital filter design and a new high-sample-rate Asynchronous USB Audio interface. It boasts more inputs and outputs, and a smart Silver finish.

Product Ref: 39495

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Full Description

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Hybrid Gain Control System

The DAC2 HGC features Benchmark's unique Hybrid Gain Control system. This combines active analogue gain control, passive low-impedance attenuators, a 32-bit digital gain control and a servo-driven volume control. All inputs are controlled by the rotary volume control, which moves in response to commands from the remote control. The analogue inputs are never converted to digital, and the digital inputs never pass through an analogue potentiometer. The digital inputs are controlled in the 32-bit DSP system, preserving precise L/R balance and precise stereo imaging while avoiding any noise or distortion. The passive attenuators provide distortion-free gain reduction without reducing the dynamic range, and optimise the gain staging between the DAC2 HGC and the power amplifier. This maximises the dynamic range of the entire system.

Eliminate All Audible Jitter Artefacts

The Benchmark UltraLock2™ jitter attenuation system is an improved version of the UltraLock system used on the DAC1, and offers 32-bit DSP processing, 3.5dB DSP headroom and a 211kHz sample rate. Jitter-induced distortion and noise is at least 140dB below the level of the music, making it well below the threshold of hearing and eliminating all audible jitter artefacts.

Multi-Mode USB System

The multi-mode asynchronous USB system supports USB Audio 2.0, DSD and USB Audio 1.1. The asynhronous communications eliminate unnecessary sources of jitter, and the system will follow sample rate changes initiated by the computer or media playback software.


"Benchmark dared to engage their power amplifier project from a different angle, discarding the standard approach ... and certainly succeeded. The theoretical advantages of their choices are both evident in the laboratory and heard during the listening sessions, thus justifying the whole approach."

- Dimitris Stamatakos, AVMENTOR.net

"Benchmark says that this, the latest iteration in the range, is superior in terms of sound quality to the DAC1... Immediately, right from the off, I was seriously impressed with the DAC2."

- Paul Rigby, The Audiophile Man - audiophileman.com


  • Sample Rate Display
  • Word Length Display
  • 5 Total Digital Inputs
  • 2 Total Analogue Inputs
  • 3 Total Analogue Outputs
  • Digital Pass Through
  • Native DSD Conversion
  • Polarity Switch
  • Asynchronous USB 2.0
  • Driverless Asynchronous USB 1.1
  • Home Theatre Bypass
  • Bi-Directional 12-Volt Trigger
  • Hybrid Gain Control
  • High-Headroom DSP
  • UltraLock2™ Jitter Attenuation System
  • Quad 32-Bit Balanced D/A Conversion System
  • Multi-Mode Asynchronous USB Audio System
  • Distributed Power Regulation


  • SNR – A-Weighted, 0 dBFS = +20 to +29 dBu: 126 dB
  • SNR – Unweighted, 0 dBFS = +20 to +29 dBu: 123 dB
  • THD+N, 1 kHz at 0 dBFS: -109 dBFS, -109 dB, 0.00035%
  • THD+N, 1 kHz at -1 dBFS: -110 dBFS, -109 dB, 0.00035%
  • THD+N, 1 kHz at –3 dBFS: -113 dBFS, -109 dB, 0.00035%
  • THD+N, 20 to 20 kHz test tone at –3 dBFS: -112 dBFS, -108 dB, 0.00040%
  • Frequency Response at Fs=96 kHz:
    • +0 dB, -0.04 dB (20 to 20 kHz)
    • -0.04 dB at 10 Hz
    • -0.04 dB at 20 kHz
    • -0.04 dB at 40 kHz
    • -0.7 dB at 45 kHz
  • Frequency Response at Fs=48 kHz:
    • +0 dB, -0.04 dB (20 to 20 kHz)
    • -0.04 dB at 10 Hz
    • -0.04 dB at 20 kHz
  • Crosstalk:
    • -116 dB at 20 kHz
    • -130 dB at 1 kHz
    • -137 dB at 20 Hz
  • Maximum Amplitude of Jitter Induced Sidebands:< -144 dB
  • Maximum Amplitude of Spurious Tones with 0 dBFS test signal: < -138 dB
  • Maximum Amplitude of Idle Tones: < -147 dB
  • Maximum Amplitude of AC line related Hum & Noise: < -140 dB
  • Inter-channel Differential Phase: +/- 0.25 degrees at 20 kHz
  • Inter-channel Differential Phase: +/- 0.25 degrees at 20 kHz
  • Maximum Lock Time after Fs change: 400 ms
  • Soft Mute Ramp Up/Down Time: 50 ms
  • Mute on Receive Error: Yes
  • Mute on Lock Error: Yes
  • Mute on Idle Channel: No
  • 50/15 us De-Emphasis Enable: Automatic in Consumer Mode
  • De-Emphasis Method: Digital IIR
  • De-Emphasis Supported at: Fs = 32, 44.1, 48 kHz

*For more specifications and information, please see the Manual above

Your order may be delivered with a plug adapter
If any electrical items in your order are supplied with a United Kingdom plug connection, a suitable plug conversion adapter will be included free of charge.