| 摘要 |
PURPOSE:To attain the improvement of the performance of a system by disposing an oscillator in a cabinet having a resonance opening, defining one of the impedance to be a negative impedance and providing mutually output impedance values. CONSTITUTION:At the time of driving the oscillator of an acoustic device for disposing the oscillator in the cabinet having the resonance opening, in a first resonance frequency f1 determined by a substantial oscillator and the cabinet and a second resonance frequency f2 determined substantially by the oscillator and the cabinet and the resonance opening, driving impedances Z1, Z2 are defined to be both negative values or Z1 Z2 or define one of Z1, Z2 to be zero or a positive value and the other to be a negative. Accordingly, the resonance frequency can be independently set. Namely, for instance, the speaker system can be designed irrespective of the restriction of an ordinary bus reflecting type. Thereby, system performance can be improved. |
