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  1. #1
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    Offline power supply for class D bass guitar amplifier

    Hi
    For an offline power supply for supplying a Class D bass guitar amplifier with peak power of 720W (obviously the average power is 1/8th of that), would you say that the transient response is very important?....eg if the input rail to the class D amp sagged in voltage when a note was hit then that might make the bass sound a bit poor?
    …And also, would you expect to see a large electrolytic capacitor bank to supply the transients (on the class D amp input voltage rail) first and foremost, or would you expect a lightning fast SMPS converter to do it?

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  2. #2
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    Re: Offline power supply for class D bass guitar amplifier

    Really, any SMPS which has been designed for an audio amplifier should work.

    And indeed, stiffness of the supply is one requirement. But I would say it doesn't have to be lightning fast. I've seen bass guitar waveforms, and the attack time is nowhere close to percussion.
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