Sennheiser HD 820 & HDV 820 Reference Headphone & Amplifier System

With its black anodised housing and white LEDs, the HDV 820 perfectly matches Sennheiser's HD 820 flagship high-end headphones to deliver the ultimate audiophile listening experience.

Sennheiser’s HDV 820 is the next generation of its acclaimed digital headphones amplifier, designed to complete the Sennheiser audio experience and perfectly complement its high-end audiophile headphone range for the ultimate acoustic performance.

With a breadth of audio outputs that include XLR3, XLR4, 6.3 mm- and a 4.4 mm Pentaconn socket, it is easy to find the optimal way to connect your headphones with the HDV 820. It performs brilliantly with digital sources, whether optically, coaxially, or via USB, and features balanced (XLR) and unbalanced (RCA) analogue inputs. The HDV 820 also comes supplied with a dedicated, country-specific power cable.

Features of the HDV 820 Headphone Amplifier

• Symmetrical signal processing with exact signal transmission over the entire frequency spectrum and extremely low harmonic distortion

• Dynamic range of more than 120 dB, wide bandwidth and high transient response due to short signal paths

• Outstanding ESS SABRE32 DAC (digital-analog converter) with a resolution of 32 bits and a sampling rate of up to 384 kHz

• Automatic adjustment of the sampling rate (44.1 kHz to 384 kHz)

• USB Audio (up to 32 Bit/384 kHz and up to DSD256)

• Can be used with up to four dynamic headphones

• 3 balanced headphone sockets (2 x 4.4 mm Pentaconn jack socket, 1 x XLR-4 socket)

• High-quality XLR-3/1⁄4" (6.35 mm) jack combo socket for connec- tion of unbalanced headphones

• High flexibility due to different connection possibilities: – Digital inputs: S/PDIF coaxial/optical, USB
  – Analog inputs: balanced XLR-3, unbalanced RCA

• Analog output: balanced XLR-3, level adjustable (for connection of active loudspeakers or a power amplifier)

• Engineered and handcrafted in Germany

Specifications....

HD 820

• Impedance

  300 Ohms

• Frequency response (Headphones)

  12 - 43800 Hz (-3 dB)

  6 - 48000 Hz (-10 dB)

• Sound pressure level (SPL)

  103 dB at 1 kHz, 1V

• • Ear coupling

    around the ear

  • Jack plug

    6.35 mm / 4.4 mm

    XLR-4 (optional)

  • Cable length

    3m

  • Weight

    360 g without cable

  • Transducer principle (headphones)

    dynamic, closed

HDV 820

• Frequency response

  < 10 Hz to > 100 kHz

• THD, total harmonic distortion

  < 0.001 %

• Weight

  Approx. 2.25 kg

• • Power consumption

    Nominal 12 W

    (2 x 300 Ω headphones connected to the 4.4 mm outputs)

  • Gain

    UNBAL input/XLR-4 output:

    Adjustable 14 dB, 22 dB, 30 dB, 38 dB, 46 dB

    BAL input/XLR-4 output: 16 dB

  • Operating voltage (mains)

    100 – 240 V ~, 50 – 60 Hz

  • Dynamic range

    > 115 dB @ 600 Ω load (A-weighted)

  • Dimensions

    Approx. 224 x 44 x 306 mm