| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase the efficiency of amplification of medium, high and low frequency sound especially and to obtain a sharper and harmonized sound by collecting part of a sound wave emitted to a rear side as well as a sound wave emitted from a speaker to a front side and amplifying and emitting the collected sound waves. SOLUTION: The system is provided with a speaker 10 mounted on both sides of a television cabinet, a forward amplifier member 20 amplifying a sound wave emitted to a front side, and a backward amplifier member 30 amplifying part of a sound wave emitted to a rear side of the speaker 10. The sound wave emitted to the front side of the speaker 10 is amplified by the forward amplifier member 20 and the sound wave emitted to the rear side is amplified by the backward amplifier member 30 to amplify a low frequency sound, especially a ultralow frequency sound as well as medium and high frequency sounds so as to increase a listening space of the sound wave and to improve the sharpness of the sound, and since the backward amplifier member 30 is separately coupled to make the size of the metallic die small and the manufacture cost is reduced.</p> |
