HD 820 Lossless Clear Calls - includes BTD

Clear Calls - includes BTD 700

A wide soundstage immerses you in music

5 Hz) or the bass drum kick (45-60 Hz) as if you were there

Sennheiser’s 7mm TrueResponse Transducer practically eliminates harmonic distortion while diffuse-field equalized acoustics deliver superb balance without peaks or troughs

it is globally recognized as the standard for analytical high-fidelity listening - even 20-plus years after its release

HD 820 Lossless Clear Calls - includes BTDThe new audiophile standard The critics said closed headphones could never sound as immersive as their open air counterparts. They said physics would never allow it. To that we simply said, listen. The HD 820 combines an innovative glass reflector and ring radiator transducer technology for a benchmark listening experience.