| 摘要 |
<p>PURPOSE:To make it possible to fulfill definitely and easily the design and appreciation of a speaker unit with frequency characteristics of the speaker unit flattened by compensating the cut-off part of the 1st squawker and then by connecting it to BPF of the 2nd squawker. CONSTITUTION:To squawker 3, band-stop filter BCF is connected to cut off frequency bands (F2)...(F3) at which the trough of a sound wave is caused in a listening room, and band-pass filter BPF is connected to squawker 4 to compensate cut- off parts (f2)...(f3) of squawker 3, thereby flattening sound-pressure frequency characteristics. Consequently, the speaker unit can definitely and easily be designed and appreciated.</p> |
