Distraction off.
Open sound on.

Who says closed-back headphones can’t sound that open?

Enter the HD 620S — an oasis for demanding listeners seeking a distraction-free listening experience without compromising on natural, expansive sound. It delivers reference-level detail, engaging dynamics and speaker-like imaging in a closed-back design..

Overview :

• Angled 42 mm transducers* further an even more expansive soundstage, unique for closed-back designs.
• Minimal acoustic damping. No surround damping on the transducer and an acoustically transparent dust cover.
• The remarkably open baffle lets the air move easily, leading to a faster and more brilliant sound.
• The highly compliant surround contributes to a cleaner and richer sound in the low frequency range.
• Lightweight aluminum coil at half the weight compared to its copper counterpart, provides an excellent impulse response
• Robust, steel reinforced headband and steel earcups; vented artificial leather earpads with acoustic benefits; comfort-oriented light-weight design for all-day use

*The transducers are made at the Audiophile factory in Ireland on the same line where the 600 series were born: trustworthy industry-leading performance in Sennheiser's most  well-known headphones for decades

  More :

DISTRACTION-FREE LISTENING EXPERIENCE

• Speaker-like imaging: angled transducers create a panoramic soundstage - exceptional for a closed-back design
• Substantial yet balanced bass and sub-bass

THE NATURAL SENNHEISER SOUND YOU LOVE

• Ultra-low distortion across the entire frequency range
• Intimately true vocal reproduction, unobscured frequency bands
• Exceptional impulse response with reference-grade 42 mm
• transducer with a 38 mm diaphragm and an ultra-light aluminum, 150-ohm voice coil

ALL-DAY USE FOR YEARS TO COME

• Lightweight yet sturdy chassis
• Supple artificial leather earpads with internal venting and spacious earcups for hours of intimate listening
• Robust steel-reinforced earcup covers and headband-slider for extraordinary durability

Technical 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
• Weight (w/o cable) 326 g
• Audio cable/s 1.8 m cable with 3.5 mm plug
• Audio adapter/s 3.5 to 6.3 mm adapter

What’s in the box

• Closed-back headphones HD 620S
• 1.8 m cable with 3.5 mm plug
• 3.5 to 6.3 mm adapter