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  4. Benchmark DAC3 HGC 2 Digital Audio Converter Black
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Benchmark DAC3 HGC 2 Digital Audio Converter Black
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Benchmark DAC3 HGC 2 Digital Audio Converter Black

Product Code: 413910

"HGC" is Benchmark's unique Hybrid Gain Control system. The DAC3 combines active analog gain control, passive low-impedance attenuators, a 32-bit digital gain control, and a servo-driven volume control.

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Benchmark DAC3 HGC 2 Digital Audio Converter Black


All inputs are controlled by the rotary volume control. This volume control moves in response to commands from the remote control. Analog inputs are never converted to digital, and digital inputs never pass through an analog potentiometer. Digital inputs are precisely controlled in the 32-bit DSP system. The DSP system preserves precise L/R balance, and precise stereo imaging, while avoiding any source of noise and distortion.

Benchmark's unique passive output attenuators provide distortion-free gain reduction without reducing the dynamic range of the converter. The attenuators optimize the gain staging between the DAC3 and the power amplifier. This optimization is absolutely essential for maximizing the dynamic range of the entire playback system.

All of the digital processing in the DAC3 is designed to handle signals as high as +3.5 dBFS. Most digital systems clip signals that exceed 0 dBFS. The 0 dBFS limitation seems reasonable, as 0 dBFS is the highest sinusoidal signal level that can be represented in a digital system. However, a detailed investigation of the mathematics of PCM digital systems will reveal that inter-sample peaks may reach +3.01 dBFS while individual samples never exceed 0 dBFS. These inter-sample peaks are common in commercial releases, and are of no consequence in a PCM system until they reach an interpolation process. But, for a variety of reasons, virtually all audio D/A converters use an interpolation process. The interpolation process is absolutely necessary to achieve 24-bit state-of-the art conversion performance. Unfortunately, inter-sample peaks exceeding 0 dBFS cause clipping in most interpolators. This clipping produces distortion products that are non-harmonic and non-musical . We believe these broadband distortion products often add a harshness or false high-frequency sparkle to digital reproduction. The DAC3 avoids these problems by maintaining at least 3.5 dB of headroom in the entire conversion system.

 

Features

 

  • Sample Rate Display
  • Word Length Display
  • 5 Digital Inputs
  • 2 Stereo Analog Inputs (2 RCA)
  • 3 Stereo Analog Outputs (2 RCA, 1 XLR)
  • Digital Pass Through
  • Native DSD Conversion
  • Polarity Switch
  • Asynchronous USB 2.0
  • Driverless Asynchronous USB 1.1
  • Home Theater Bypass
  • Bi-Directional 12 Volt Trigger
  • Power Switch
  • Low Power Consumption
  • ES9028PRO Converter
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