Headphone type

Closed type headphones have a structure in which the back of the driver unit (diaphragm) is sealed by the housing, and it is excellent in "sound insulation performance" that shuts out the surrounding sound without leaking the sound of the headphone to the outside. The structure is often found in monitor headphones, DJ headphones, and portable headphones that are convenient for carrying.

Closed-type headphones have high resolution with the ability to reproduce detailed sounds, and are used in many monitor headphones used in recording studios and the like.

In terms of sound quality, it is transmitted to the ear without leaking sound to the outside, so it has the feature of playing a powerful sound centered on the low frequency range. As a typical sealed headphones, SONY's standard monitor headphone "MDR-CD900ST" and popular DJ headphone "HD25-1II" of SENNHEISER are popular.

In contrast to closed types, open type headphones do not close the back of the driver unit. By allowing the sound to leak from the back of the housing made of mesh or slits, the sense of sound being squeezed disappears, and you can enjoy a wide sound field with a sense of clarity and a clear sound that is open-type-specific.

Because the sound leaks, you should be aware when using outdoors that others can hear what you’re listening to. They are mainly suitable for indoor use, movie watching and easy listening. As representative models, the AKG "K 701", which has become very popular in for those listening to Anime music, and the "HD 650", which is used by professional musicians and headphone lovers are popular.