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Sennheiser HD 620S Closed-Back Audiophile Headphones (Open Box) [Grade A, Full Warranty]
WIRED HEADPHONE
Closed-Back
over-ear
gaming
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✓ 2 year limited Sennheiser warranty
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Product Details
↓ Details provided by Sennheiser ↓
(Specifications and appearance of this product are subject to change without notice)
Distraction Off. Open sound on.
The new HD 620S breaks from the pack with contemporary tuning and soundstage that defy the closed headphone category.
The family tree
At the heart of the HD 620S is a custom-tuned 42mm dynamic transducer made at the brand’s state-of-the-art Tullamore, Ireland transducer plant. It carries forward the smooth and effortless sound found in the open-back 600 family with a modern, airy signature that balances honesty with deep and articulate bass. Thanks to a high damping factor, the 150-ohm aluminium voice coil excels at speedy transients and well-defined instrument tails for punchy dynamics across the entire frequency spectrum—a boon for audiophiles and passionate gamers trying to consume as much detail as possible in a given moment.
Situated in an iconic chassis beloved by audiophiles, gamers and streamers alike for its long-term wearing comfort, the HD 620S elicits a sense of confidence while providing an instant sweet spot. Metal appointments not only feel great to the touch but serve an acoustic purpose as well–the steel plate closing off the back volume is an efficient isolator that manages the internal reflections that cloud the purity of an acoustic signal within. The angled baffle is remarkably open to encourage the free movement of air, modelling the behaviour of open-back transducers while recreating the triangular imaging of a great loudspeaker setup in an expertly tuned room. This immersive presentation drops the listener into the centre of the action with impressive cue location, whether it is a rare live concert recording or massive online multiplayer showdown.
Case closed
Open headphones are an audio purists’ favourite, however closed headphones are invaluable for listening when isolation from the world around the listener is essential. Audiophiles are accustomed to trading the natural response and wide imaging of open headphones in order to keep distractions at bay, or from disturbing roommates, spouses and co-workers. No doubt, the HD 620S is a breakthrough in real-world performance, offering the dramatic soundstage they want absent the fatiguing, boxy sound associated with sealed cans.
You have new connections
The HD 620S was built to last with a metal-reinforced headband and earcup housings. An included storage pouch keeps dust at bay with ample space for the detachable cable too, for tidy keeping. The 1.8 meter / 6 foot cable terminates to a single-ended 3.5mm stereo plug with an integrated locking screw for the included 6.3mm adapter. Available this summer, an optional balanced 4.4mm cable will let audiophiles tap into a growing range of hi-fi devices supporting the popular connector. The HD 620S shares the twist-and-lock single-sided cable design with other Sennheiser headphones, giving the user plenty of aftermarket options including different lengths and an in-line microphone.
IN THE BOX
- HD620S
- 1.8m Cable with 3.5mm (1/8") termination
- 3.5mm (1/8") to 6.35mm (1/4") adapter
SPECIFICATIONS
| Wearing style | Wired headband |
| Ear coupling | Over-ear (Circumaural) |
| Ear pad material | Artificial leather |
| Acoustic principle | Closed-back |
| Transducer principle | Dynamic (single driver) |
| Transducer size | 42 mm with a 38 mm diaphragm |
| Frequency response | 6 Hz - 30,000 Hz |
| Impedance | 150 Ω |
| Sound Pressure Level (SPL) | 105 dB (1 kHz / 1 Vrms) |
| Total Harmonic Distortion (THD) | <0.05% (1 kHz / 90 dB SPL) |
| Magnetic field strength | 6.25mT |
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