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Message: <blockquote data-quote="hispls" data-source="post: 8821261" data-attributes="member: 614752">Rather meaningless since class D operates at peak efficiency at maximum unclipped power and at higher impedance.   Your impedance is never standing still and it is unlikely you're going to be running it at maximum unclipped power for very long.  Idle current draw should be around the same and normal music listening the difference either way should be negligible.  It's not like you're building a deep space probe where your battery needs to last 50 years on the way to Mars or something, and outside of test bench scenario I do not believe you'll ever see anything close to published efficiency numbers on an amplifier.</blockquote>

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