Patent attributes
An apparatus with acoustic enhancement and corresponding frequency response is disclosed. The apparatus includes a driver with a primary bass port having a primary bass port chamber and a secondary bass port having a secondary bass port chamber. The secondary bass port can be coupled to the primary bass port at one end and have substantially unimpeded air flow at another end. The apparatus may further include an acoustic chamber that is separated or isolated from either the primary bass port chamber, secondary bass port chamber, or both primary and secondary bass port chambers. A switch may also be included to dynamically control an air flow resistor at the latter end of the secondary bass port. The primary bass port chamber, secondary bass port chamber, acoustic chamber, and the air flow resistor can separately or collectively be used for tuning the frequency response according to the acoustic enhancement desired.
