Sennheiser HD 650

Open-Back Dynamic Headphone


Sennheiser HD 650 £429.99 £349.00

A benchmark for total audio immersion.

When the music matters the most: The HD 650 reproduces the subtle details in music with the same confidence as the highlights.

The (high) definition of smooth Expertly balanced acoustics, luxurious construction, and timeless design.

The HD 650 offers all the perks of a high-performance sports car without any quirks. This open-back headphone, beloved by audiophiles, delivers a musical, non-fatiguing sound while still offering intimate levels of detail. Upon the first note, favorite tracks reveal their true potential with the HD 650, making each moment an opportunity to experience the performance anew. For the hi-fi enthusiast prioritizing engaging sound quality, the HD 650 serves as an instant upgrade.

Smooth response and dimensional soundstage Open earcups of the HD 650 provide each soundwave ample room to expand naturally.

The signature sound of the HD 650 begins with Sennheiser’s in-house acoustics. Audiophiles recognize that the best components perform optimally when unobstructed. The 42mm transducer of the HD 650 deploys a 38mm diaphragm with an aluminum voice coil, specifically tuned for extended, critical listening. The HD 650 ensures that treble and low-frequency presence are effortless, while midrange is reproduced with lifelike composure, all without sacrificing their organic roots. Modern high-resolution sample rates benefit particularly well from the HD 650’s ability to reveal subtle nuances without over-hyping the treble range. Each transducer manufactured for the HD 650 is measured against rigid specifications and paired with a perfect match, ensuring consistent representation of the entire frequency spectrum in both channels. By minimizing variances between left and right channels, the HD 650 reproduces mastering-grade sound, independent of room acoustics or loudspeaker positioning.


  • Open-back dynamic headphones
  • Special damping element made from fine acoustic metal mesh
  • Exclusive 42 mm transducer and 38 mm diaphragm
  • Lightweight, timeless design and comfortable velour pads for hours of fatigue-free listening
  • Frequency response: 12 – 41,000 Hz
  • Go-to reference for analytical listening
  • Extremely tight production tolerances (± 1 dB) and handpicked components
  • Detachable connecting cable made from highly conductive OFC copper
  • Impedance: 300 ohms
  • Total harmonic distortion: <0.05%



5 Years