HEADPHONE

A headphone (100) comprising a support structure (106) adapted to sit on a head (102) or upper torso of a user; a low frequency acoustic driver (110) carried by the support structure, located off of an ear (104) of the user, and having front and rear sides; a high frequency acoustic driver (122) carried by the support structure, located off of the ear of the user and closer to the ear than the first acoustic driver, and having front and rear sides; and a controller (132) configured to enable the low frequency driver to acoustically output sound in a first frequency range and enable the high frequency driver to acoustically output sound in a second frequency range higher than the first frequency range, wherein the low frequency driver is enclosed by a housing defining: a front chamber (114) acoustically coupled to the front side of the low frequency driver; and a rear chamber (116) acoustically coupled to the rear side of the low frequency driver; the housing comprising a first port (115) acoustically coupled to the front chamber and a second port (117) acoustically coupled to the rear chamber.