Yes DH, just finished reading Gene's fine article. Fortunately, here our members have been given more realistic advice about the voltage-limiting lower impedance setting and don't use it, despite what the manuals have to direct. In contrast, some other boards that I scan are full of dire warnings if the manufacturer's directive isn't followed, and discussion of speakers which happen to have a nominal 4 ohm rating approaches near-hysteria at times.

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Enjoy the music, not the equipment.