| 摘要 |
An audio system includes a first speaker operable to output sound over a first frequency range, and a second speaker operable to output sound over a second frequency range. A first input device is operable to select a volume of the sound output by the first and second speakers, and a second input device is operable to effect a change in the volume of the sound output by the first and second speakers, independently of each other. A control system is configured to effect a change in the volume of the sound output by the second speaker over a high portion of the second frequency range, while holding substantially constant the volume of the sound output by the second speaker over a low portion of the second frequency range, when the second input device is operated to change the volume of the sound output by the second speaker.
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