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The Sennheiser HD 620 S is a closed-back, wired over-ear headphone built for listeners who want open-back-style detail without leaking sound. It uses 42 mm angled dynamic drivers, a 150-ohm impedance and a detachable 1.8 m cable with a 3.5 mm plug. The steel and polyurethane frame with soft artificial-leather earpads is made for long sessions. Against open-back rivals like the HD 600 series it trades some air and soundstage for isolation, and its 150-ohm load rewards a decent amp or dongle.
In stockSold by ATHQReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners treat the HD 620 S as a strong closed-back option in the HD 600 family, praising its detail and comfort. Some find it needs a good source to sound its best and note it is heavier and less portable than expected.
The Sennheiser HD 620 S is a pair of wired, closed-back, over-ear headphones. They use dynamic, angled transducers with 1.7-inch drivers and cover a frequency response of 6 to 30,000 Hz. Passive noise cancelling comes from the closed acoustic seal.
The headband is adjustable, and the earpads are made of soft artificial leather. The construction combines polyurethane and steel. The cable is detachable and ends in a 3.5 mm jack, so the headphones connect to a range of devices. They are designed for use at home or on the go.














