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<blockquote data-quote="zane" data-source="post: 544629" data-attributes="member: 540617">Switching frequency basically relates to efficiency via rail voltage and how it is delivered, not really anything on an audible basis.Switching faster increases the efficiency, allowing the amplifier to increase it&#039;s capabilities.Keep in mind that class D amplifiers were originally not designed to be efficient across the entire frequency band, as their purpose was pretty much specific to subwoofers.&nbsp; &nbsp; They switched at a lower frequency as a result of this, and would begin to distort when people tried to push thier power supply&#039;s beyond their capable intended limits.&nbsp;&nbsp; IE: - Misuse.So there is really nothing about switching frequency that could be considered to have an audible impact on an amplifier, save one possibility, that being misuse.From that point, I&#039;ll still wager that no one on this board could tell the difference between a 400 watt class D amp against a 400 watt class AB amp on the same speaker.The only difference you would notice is that the class D provides it&#039;s output more efficiently.</blockquote>

[QUOTE="zane, post: 544629, member: 540617"] Switching frequency basically relates to efficiency via rail voltage and how it is delivered, not really anything on an audible basis. Switching faster increases the efficiency, allowing the amplifier to increase it's capabilities. Keep in mind that class D amplifiers were originally not designed to be efficient across the entire frequency band, as their purpose was pretty much specific to subwoofers. They switched at a lower frequency as a result of this, and would begin to distort when people tried to push thier power supply's beyond their capable intended limits. IE: - Misuse. So there is really nothing about switching frequency that could be considered to have an audible impact on an amplifier, save one possibility, that being misuse. From that point, I'll still wager that no one on this board could tell the difference between a 400 watt class D amp against a 400 watt class AB amp on the same speaker. The only difference you would notice is that the class D provides it's output more efficiently. [/QUOTE]

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