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In Reply to: RE: Running Class D Amp 24/7 posted by pictureguy on February 21, 2015 at 13:58:17
Nobody listens to music 'at idle'. Not even the supremely hearing endowed.Of course not but in the context of leaving amps ON 24/7, which is what we're talking about, power draw 'at idle' is the more important factor.
I have measured power draw 'at idle' on more than a few amplifiers and in all cases Class D amps draw very little sitting there 'idle'. This is NOT the case for traditional Class AB. And we all know that Class A amps are extremely inefficient drawing tons of power whether playing music or not.
Edits: 02/22/15Follow Ups:
100%. Sorry about being a sheer smart ass. I've TRIED to listen to music 'at idle' and end up getting a tune stuck in my head. That'll Really make me nuts!
If I had a 'switchable' amp with a choice of 'a' and 'a/b' I'd use the 'a' in the winter to heat the house a little. In summer, I'd not want to put the extra pressure on the AC. Some EMOTIVA amps feature that choice.
I believe that if 'a' amps are FORCED to conform to 'green' rules, You will eventually have to pay something LIKE a 'gas guzzler' tax to buy one. And here in California, you'll even have some Carbon Credits to buy, like we do as a result of a TAX INCREASE in pump gas.
An 'a' amp with idle / no signal at a a fraction of an amp, would essentially be worthless until warmed. Which would defeat much of the purpose of leaving it 'on'.
Too much is never enough
I didn't know you were being a smart ass so I was being too serious. ;-)
I think we both 'get it' though.
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