Open-back headphones

An open-back headphone has perforated rear earcups fitted with grilles that allow air and sound to circulate between the inside of the earcup and the room. This ventilation expands the soundstage: instruments and voices stand out with a sense of space close to listening through speakers, whereas a closed-back headphone encloses the sound around the head. The ears stay ventilated, limiting fatigue and heat during long sessions, and these headphones are often lighter. The trade-off is straightforward: no isolation. You hear the room, and the room hears the music. An open-back headphone is therefore best suited to relaxed listening in a quiet environment, not for commuting or shared offices, where sound leakage disturbs those nearby. Many require a little power to perform at their best: a decent source is enough for easy-to-drive models, while a dedicated amplifier brings high-impedance headphones to life. The connection is most often wired, with a 3.5 or 6.35 mm jack and a detachable, replaceable cable. Semi-open models seek a compromise between spaciousness and isolation. To decide between the two types, our open-back or closed-back headphone guide details the trade-offs; closed-back headphones provide isolation for travel and noisy rooms, and the full range can be found in hi-fi headphones and earphones.