As the amplifier tuned load circuit, they are able to select the base component cosine pulse to obtain undistorted amplification signal output, so this amp is also known as tuned power amplifier.

由于放大器的负载为调谐回路，所以能选出余弦脉冲中的基准分量，获得不失真的放大信号输出，因此这种放大器也称为调谐功率放大器。

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An on-board limiter protects the woofer's driver being over-powered and maintains clean and undistorted sound, at any output level.

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