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Message: <blockquote data-quote="squeak9798" data-source="post: 2824320" data-attributes="member: 555320">It will have less current draw because it is outputting less power.  So yes, it's noticeable...but so is the substantially decreased output.  Barring amplifiers like the PG Xenon and JL Slash; An amplifier operating at 1ohm will output approximately 4x what it's capable of at 4ohm.  So sure there is going to be a substantial difference in current draw, along with power output.If you are looking for efficiency, just look for a mono class D amplifier and forget about finding an amplifier to output the power you need into 4ohms.  Most amps that fall into your price range and output that power into 4ohms are going to be class A/B and have significantly more current draw than a class D of similar power operating into a 1ohm load.I would have to agree.</blockquote>

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