Yamaha P7000S power amplifier
Powerful enough for PA/DJ work; accurate and musical enough for home hi-fi.
Indeed, comparable in audio quality to "audiophile" amplifiers costing several times its price.
Fan-cooled, like most pro amps, but in my home audio set-up, I've never actually had the fans turn on.
Extra bonus is the onboard low-pass filters which make it very easy to integrate subwoofers which I, for one, consider a necessity in a full-range audio system.
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