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<blockquote data-quote="squeak9798" data-source="post: 1527645" data-attributes="member: 555320">Coustic Design Reference and Soundstream Rubicon amplifiers (both highly regarded, old school amplifiers).Yeah, much higher efficiency over class A/B, especially at lower power levels where most class A/B amps are around 33% efficient and most class D amps are around 65%.&nbsp; But, in all honesty....with no more power than frontstage amplifiers have the difference in actualy amperage draw is relatively insignificant.&nbsp; The main benefit is for large subwoofer amplifiers.Take a 300w amplifier for example.&nbsp; Using 33% efficiency on a 13.8V electrical system, it&#039;d draw ~36A.&nbsp; Take that same 300w with 65% efficiency at 13.8V and it&#039;d draw ~29A.&nbsp; So, a net difference of 7A for a 300w amplifier.But, every little bit counts I guess //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif</blockquote>

[QUOTE="squeak9798, post: 1527645, member: 555320"] Coustic Design Reference and Soundstream Rubicon amplifiers (both highly regarded, old school amplifiers). Yeah, much higher efficiency over class A/B, especially at lower power levels where most class A/B amps are around 33% efficient and most class D amps are around 65%. But, in all honesty....with no more power than frontstage amplifiers have the difference in actualy amperage draw is relatively insignificant. The main benefit is for large subwoofer amplifiers. Take a 300w amplifier for example. Using 33% efficiency on a 13.8V electrical system, it'd draw ~36A. Take that same 300w with 65% efficiency at 13.8V and it'd draw ~29A. So, a net difference of 7A for a 300w amplifier. But, every little bit counts I guess [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] [/QUOTE]

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