Sennheiser at Audio46

Sennheiser HDV 820 Headphone Amplifier (OPEN BOX)


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$2,039.96 Regular price $2,399.95 Save $359.99 (14% OFF)

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Product SKU: 507444 (OB)


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(Open box complete, 2 Year Warranty)


Sennheiser HDV 820 Headphone Amplifier (Open box)

Made to be utilize power from the United States

Introduced at the Toyko Headphones Festival, in April 2017. This amp was designed to perfectly compliment Sennheiser's Luxury Audiophile headphones. Building off of the HDVD 800, The HDV 820 offers consistently symetrical signal processing and extremely low Harmonic Distortion, to ensure that the signal at playback is how it was intended to be.

The Sennheaiser HDV820 is powered by a High-Quality ESS SABRE32 DAC (Digital to Analog Converter) that surpasses the previous generation with an even higher resolution of 32 bits and a sampling rate of 384 kHz. This Amp is also capable of p[laying DSD256 files up to 12.3 MHz. Audio outputs include XLR3-, XLR4-, 6.3mm- & 4.4mm Pentacon Sockets, making connection to this amp extremely easy.The HDV 820 can recieve input from Optical, Coaxial, USB, Balanced (XLR), and Unbalanced(RCA) connections.

Key Features

  • High-Quality ESS SABRE32 DAC (Digital to Analog Converter) that offers 32 bits and a sampling rate of 384 kHz
  • Support for DSD files up to 12.3MHz



Frequency Response <10 Hz - 100,000 Hz
Max Output Power ≅ .480 mW @1,000 Hz & 600Ω
Crosstalk Attenuation min. 93 dB @ 1,000 Hz
Total Harmonic Distortion < 0.001%
Gain (UNBAL input XLR-4 Output) Adjustable (db) = 14, 22, 30, 38, 46
Gain (BAL input / XLR-4 Output) 16 dB
Dynamic Range  >115 dB @600 Ω load (A weighted)
Tempature Range Operations: 5°- 45° C (41° - 113° F)
Storage: -20° - 70° C (-4° - 158°)
Relative Air Humidity Operations: 10% - 80%
Storage: 10% - 90%
Voltage Range  100V - 200V, 50Hz - 60Hz
Power Consumption Nominal 12W(2X300Ω inputs Connected to the 4.4mm output)
Max. 18W (2X16Ω Headphones connected to the 4.4mm outputs)



WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to:

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