With the HD 800 S and HD 820 models, Sennheiser offers first-class headphones aimed at demanding music lovers. Naturally, the corresponding headphone amplifier is not missing from the range of products offered by the Lower Saxony-based manufacturer.
The HDV 820 is housed in a stylish, flat, black anodised casing with an internal power supply unit and so visually it is a matching partner to the HD 800 S.
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