Patent ID: 7499562

Claim:
A virtual multi-channel speaker unit, comprising: a casing having a transmission portion through which sounds pass; a solenoid coil arranged in the casing and applied with acoustic signals; a magnetic body around which the solenoid coil is wound to form magnetic field; a diaphragm ( 20 ) that faces one side of the magnetic body and vibrates to transmit sound waves through the transmission portion; a barrier separating the diaphragm ( 20 ) from a backside of the casing; and a transmission conduit ( 10 ) formed by the barrier and the backside of the casing, the transmission conduit having an inlet hole ( 10 a ) through which sound waves and compressed air generated behind the diaphragm upon the vibration of the diaphragm are introduced, and an outlet hole ( 10 b ) for discharging the sound waves and compressed air introduced through the inlet hole, the inlet hole being connected to a portion of the backside of the casing, the outlet hole being oriented toward the front of the diaphragm.