Sennheiser HD 620S

The HD 620S headphones deliver exceptionally vivid and faithful sound. Thanks to their closed-back design, they allow for undisturbed and non-intrusive listening, even for those whose listening environment is far from ideal. If you choose the HD 620S model, you’ll enter an oasis of music reproduction designed for discerning listeners. This sound reproduction is designed for music lovers seeking a listening experience free from distractions and without compromising on natural, vividly expansive sound. The latest addition to this audiophile series—the HD 620S—delivers reference-level musical detail, captivating dynamics, impact, and a lively, spacious soundstage reminiscent of high-quality, large-scale speakers playing in a dedicated, acoustically treated listening room.

 Sennheiser’s HD 600 series headphones have long been the standard for natural sound, thanks to our ongoing commitment to refining the open-back headphone design. Over time, we introduced the 500 Series to bring these qualities to a wider audience than ever before at a lower price point, thanks to a wide soundstage and dynamics that draw the listener into the music. The HD 620S model combines the DNA of both headphone series and delivers the best of their features, this time with a closed-back design.

 Thanks to the reference-grade 38mm, 150-ohm driver with an ultra-light aluminum voice coil, the listener is drawn into the music by an exceptionally precise impulse response, while the outside world fades into the background as emotions take over. Where many closed-back headphones struggle with microacoustic issues, the HD 620S excels with undistorted reproduction thanks to a specially designed rear panel and damping system, both of which were carefully developed to preserve the quality and original liveliness of the sound. The detailed, airy sound of the driver is thus produced without the closed enclosure compromising its natural tonality. The bass and sub-bass are pronounced yet carefully balanced, thanks to the flexible acoustic treatment of the enclosure’s internal walls, a feature adopted from the higher-end HD 660S2 model. They do not rumble, but are dynamic and almost tangibly refined. The low and midrange frequencies maintain the appropriate balance in the music.  The reproduction of vocals is so realistically faithful that it evokes a sense of the singer’s personal presence. No frequency bands are muddied or emphasized, even when listening to passionate vocals or the most complex music in Hi-Res.

 The remarkably refined open front baffle of the enclosure and, above all, the unique angular positioning of the speaker/driver, direct frequencies toward the ear canal in a completely natural way, resulting in astonishing liveliness, realism, and authenticity in the reproduction. They expand the stereo image into an almost panoramic sound field, ensuring that audiophiles no longer need to seek out an acoustically treated listening room to experience an impressive soundstage. This design evokes the sensation of a wide, classic triangular soundstage produced by perfectly positioned speakers. Such high-quality and vivid music listening is otherwise offered only by very expensive speaker systems. Each instrument is defined completely independently; it does not blend into the background and has its own unique rendering in its actual spatial location. You’ll hear it with a frequency richness, clarity, and variety of tonal nuances that are truly unique in its price category. 

 The HD 620S headband design is lightweight yet familiar—or rather, proven through use in many models—and reinforced with premium components that will deliver its unique acoustic signature for many years to come. The steel-reinforced headband and ear cup covers give the headphones a timeless look and long-lasting durability for comfortable all-day wear. The supple ear cushions made of soft synthetic leather serve both as an aesthetic element and an acoustic choice, ensuring a personalized audiophile listening experience wherever you are. Even after hours of listening, your ears remain comfortable thanks to internal ventilation and spacious ear pads. Replacement ear pads can be purchased separately. The detachable 1.8-meter cable with a swivel lock features a single-sided 3.5mm connector and comes with a screw-on 6.3mm adapter. For seamless integration into high-quality audiophile systems, the HD 620S can also be upgraded to absolute perfection with an optional balanced cable featuring a 4.4 mm jack connector.

Closed-back audiophile headphones

Immersive listening without shutting out the soundstage

The HD 620S combines the private listening of a closed-back design with the natural detail and spacious imaging associated with Sennheiser’s audiophile families. It is made for focused music listening when the room around you is not ideal.

Angled 42 mm transducers

Reference-grade angled transducers with 38 mm diaphragms guide sound naturally toward the ear. Their ultra-light 150-ohm aluminium voice coil supports fast impulse response, low distortion and a broad, speaker-like stereo image.

Built for long listening sessions

A lightweight chassis, steel-reinforced headband sliders and internally vented artificial-leather earpads are designed for durable all-day comfort. The detachable 1.8 m cable ends in a 3.5 mm plug and the supplied screw-on adapter connects to 6.3 mm headphone outputs.