Patent ID: 7751576

Claim:
A loudspeaker apparatus driven by input audio signals, comprising: a small-signal loudspeaker unit operable to output signals in a range of a predetermined level or below of the input audio signals, with a characteristic in which a linearity of output frequency with respect to input signals is substantially secured in the range of the predetermined level or below; and a large-signal loudspeaker unit operable to output signals in a range of a predetermined level or above of the input audio signals, with a characteristic in which the linearity of output frequency with respect to input signals is substantially secured in the range of the predetermined level or above, the small-signal loudspeaker unit includes first suppressing means for suppressing large amplitude elements of the predetermined level or above of the input audio signals such that vibration of a small diaphragm of the small-signal loudspeaker unit which may otherwise have been caused therefrom are suppressed, and the large-signal loudspeaker unit includes second suppressing means for suppressing small amplitude elements of the predetermined level or below of the input audio signals such that vibration of a large diaphragm of the large-signal loudspeaker unit which may otherwise have been caused therefrom are suppressed.