Abstract: A speaker (302) is arranged in an enclosure formed by a front housing portion (200) and a rear housing portion (202), so that an air-gap is between a diaphragm (314) of the speaker and ports (114) formed in the front housing that face the diaphragm. The air-gap provides an acoustic leak into the enclosure, which makes the frequency response of the speaker relatively independent of the seal formed by a human ear and the front housing portion. Sound-absorbing material (304,300) disposed on either side of the speaker, ports that extend beyond the circumference of the speaker, and a filter (600) can be added to further enhance the audio quality of the speaker.