While theDiablo 300produces more power than the Colosseum it is not a fullclass A amplifier. It produces about 20 watts inClass A. The maximum current delivery of the Colesseum stereo amplifier is astonishing allowing it to deliver a maximum short-term power of 5400 watts. TheDiablo 300limit is 950 watts.
I guess the real answer is to try a one hour warmup and a 24 hour warm up and see if you can hear a difference. Personally I think it's bad form to leave high power equipment turned on 24/7.
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