| 摘要 |
<p>An acoustic reproducing unit with excellent acoustic characteristic exhibited in a car. A signal source reproduces a multi-channel signal. A signal processing unit outputs each channel signal of the multi-channel signal. A power amplifier amplifies the power of each channel signal. A speaker converts the output of the power amplifier into sound. A high-pass filter receives a sub-woofer signal, and outputs its high-frequency components. An adder is interposed between the preamplifier and the power amplifier, and adds the output of the high-pass filter to the channel signal output from the signal processing unit. The acoustic reproducing unit with improved continuity of the bass sound image and bass characteristics in a cabin can be obtained.</p> |
