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November 1, 2009

A/V Question of the Month: Power for Bass Notes

Q. I would like a technical explanation as to why it requires more power to recreate a bass note. Also, I find several references about crossovers dividing frequencies. I would like an explanation as to how the crossover diverts the majority of the power from the input signal to the woofer when using a single amplifier. — Bryan

A. Thanks for your e-mail and interesting questions.

All audible sounds have wavelengths. Bass sounds that are reproduced by a woofer have long wavelengths. Think of big ocean waves. The wavelength is the distance between the peak of one big wave to the peak of the next.

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