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Suspect amp power ratings
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<blockquote data-quote="John Roberts" data-source="post: 99861" data-attributes="member: 126"><p>Re: Suspect amp power ratings</p><p></p><p>@ Greg Perhaps that's it... back in old days real men didn't operate their power amps at 2 ohms (4 ohms bridged). </p><p></p><p>@ Geoff is that CASP very very old or very new? During my 15 years at Peavey we just used plain old Watts. While the duty cycle amps make these watts for still is not quantified, and a slippery slope to confuse same power amp comparisons. The old school CS800 was 800W all day and all night, but then the competition started pimping 2 ohm operation with better power numbers from the same amp.. So 800W became the new 1200W but forget about all day and all night duty cycle. </p><p></p><p>I am optimistic that new generation of class D amps will improve the situation. </p><p></p><p>JR</p><p></p><p>PS: back in the 60s-70's the consumer power amp merchants were worse than used car salesmen using all kinds of artifice to inflate published power ratings. As government is wont to do, the FTC regulations over reacted with preconditioning at 1/3 power for an hour that was good for the aluminum (heat sink) and copper (transformer) industries but didn't save consumers a penny. I am kind of glad that we don't have duty-cycle specs too, or that would be another metric for amp designers to game and consumers to misunderstand.</p></blockquote><p></p>
[QUOTE="John Roberts, post: 99861, member: 126"] Re: Suspect amp power ratings @ Greg Perhaps that's it... back in old days real men didn't operate their power amps at 2 ohms (4 ohms bridged). @ Geoff is that CASP very very old or very new? During my 15 years at Peavey we just used plain old Watts. While the duty cycle amps make these watts for still is not quantified, and a slippery slope to confuse same power amp comparisons. The old school CS800 was 800W all day and all night, but then the competition started pimping 2 ohm operation with better power numbers from the same amp.. So 800W became the new 1200W but forget about all day and all night duty cycle. I am optimistic that new generation of class D amps will improve the situation. JR PS: back in the 60s-70's the consumer power amp merchants were worse than used car salesmen using all kinds of artifice to inflate published power ratings. As government is wont to do, the FTC regulations over reacted with preconditioning at 1/3 power for an hour that was good for the aluminum (heat sink) and copper (transformer) industries but didn't save consumers a penny. I am kind of glad that we don't have duty-cycle specs too, or that would be another metric for amp designers to game and consumers to misunderstand. [/QUOTE]
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