Since we are dealing with POWER amplifiers, which need to deal with both voltage and current, which is power W, in order to provide max power transfer, impedance matching is necessary. Look under the Reative section of the explanation, not resistive, which doesn't pertain to loudspeakers. An audio amplifier is a power amp, not a voltage amp, not a current amp, not a servo amp, not an op amp. power. And thusly it is like it says like I said before a modulated power supply, impedance matching does matter. WHY does your McIntosh have taps to MATCH different load impedances? hmmmm, if impedance didn't matter, or matching it, does it use taps on tube amps> Please continue...............and can you find a definition of a dictionary in a dictionary? What about a definition of an encylopedia in a dictionary, or an explanation of both in an encyclopedia?
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