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Message: <blockquote data-quote="mud" data-source="post: 513001" data-attributes="member: 550416">Actually, most home amplifiers run at high impedance because they already have a switch mode power supply operating at 60 (or 50) Hz, aka wall power (and, as you said, almost unlimited power).  Car amplifiers run off of DC, so they have to have their own SMPS, which engineers usually make operate at a very high frequency (~50,000 Hz) so that they can use small, efficient transformers.And as for an amp "sounding sloppy" at 2 or 1 ohms, I don't suppose you have any actual information to back that up?</blockquote>

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