Abstract: A television set speaker system includes first and second acoustic waveguides arranged respectively in the front surface parts of respective diaphragms of left channel and right channel speakers so as to radiate sounds. First and second directional reflectors are arranged respectively in the rear surface parts of the respective diaphragms of the left channel and right channel speakers so as to forcibly reflect the sound radiated from the respective rear surface diaphragms respectively in the left and right side surface part directions and to radiate the sound out of the television set through first and second radiating ports provided respectively in the left and right surface parts of the television set.

Abstract: As the front surface diaphragm of the speaker is provided with a first acoustic waveguide and the rear surface diaphragm is provided with a back cavity reflecting sound waves and a second acoustic waveguide guiding the reflected sound waves, a mass of air by the first acoustic waveguide will be applied to the front surface diaphragm, substantially the same load as to the rear surface diaphragm, the acoustic loads in the front and rear of the diaphragm will be balanced, the sound waves of the low frequency ranges will be able to be efficiently discharged on substantially the same level from both acoustic waveguides and sounds having an expansion and presence will be able to be obtained.

Abstract: A speaker apparatus includes a speaker having a diaphragm, a frame having a mouth and a reflector. The speaker is mounted inside a cylindrical box, and the frame is formed cylindrically and covers over the diaphragm. The mouth opens perpendicular to an axis along the center of the diaphragm. The reflector is positioned opposite the diaphragm in the frame and is formed roughly conically but asymmetrically between a side of the mouth and the opposite side of the cylindrical box. Sound waves radiated from the diaphragm are reflected by the reflector and an inner surface of the frame, and are released to the outside of the mouth.