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Are you looking for a top-class all-in-one headphone hub, or only a basic amplifier? At £1,100, this sits exactly at the 75th-percentile point of the nine comparable listings, so it is fair rather than a bargain—especially with condition listed as unknown. It is not obviously overpriced, but stronger examples should ideally include accessories and clear evidence of good working order.
The HDV 820 remains a highly capable, versatile unit: its balanced and single-ended headphone outputs, USB, optical, coaxial and analogue inputs, and preamp outputs make it genuinely useful in a serious system. It also offers a clean, powerful solid-state presentation and a sophisticated DAC, with support for high-resolution PCM and DSD formats. Confirm that every output works, the volume control is quiet, and the original power supply and packaging are included; at this price, those details determine whether it is merely fair or worth pursuing.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Founded in June 1945 by Dr. Fritz Sennheiser in a farmhouse near Hanover, Germany, Sennheiser began as Laboratorium Wennebostel, producing voltmeters and early microphones amid post-World War II reconstruction. Seven engineers from the University of Hannover joined the founder, quickly pivoting to broadcast microphones like the DM 2 in 1946 and the groundbreaking MD 82 shotgun mic in 1956. Renamed Sennheiser electronic in 1958, the family-owned company passed to second- and third-generation leadership, maintaining its innovative spirit over eight decades.
Sennheiser excels in professional and consumer audio, renowned for microphones, wireless systems, and headphones that set industry standards. Pioneers of the first open-back headphones (HD 414 in 1968) and enduring studio icons like the MD 421 and MD 441, they also produce high-end headphones, earbuds, soundbars, and conferencing solutions. While strong in pro audio like mixers and geophysical gear, their consumer focus centers on headphones and wireless tech rather than amplifiers, speakers, turntables, DACs, or cables.
Sennheiser commands a premium position in the hi-fi market, blending mid-tier accessibility with high-end excellence for discerning buyers and professionals. Trusted for reliability and sonic precision, it appeals to audiophiles seeking reference-grade headphones without boutique obscurity, backed by a heritage of technological firsts that sustains its global leadership.
See all Sennheiser listings on RADAR.
eBay Australia
audio-markt.de
Good
eBay UK
GB
eBay UK
Kleinanzeigen
Excellent
DE
audio-markt.de
Good
