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<blockquote data-quote="Brian Oppegaard" data-source="post: 31665" data-attributes="member: 527">Re: Amp Tests (1 of 2)Very informative. I too like Don Keele&#039;s test for short term power. It is repeatable and correllates well to bass drum heavy music. Thump thump thump.&nbsp;For the folks doing music like dub step, trance, reggae etc, a long term power test would be an interesting addition to what you have done. Dub step in particular seems to be near constant LF sine waves.&nbsp; &nbsp;By long term power test, I don&#039;t mean hours, but a musically significant long term like more than 2-3 seconds up to 1-2 minutes. I think all the amps you have mentioned have limiters that cut back after a few seconds to keep breakers from blowing. So for instance if the amp has a 30A breaker, it may pull 50A for a few seconds before throttleing back output to where the mains draw is 30A. The power the amp will then deliver long term is limited by how efficient the amp is and how well it utilizes the power out of the wall.&nbsp;The FP 14000, from it&#039;s data sheet, at 30A mains input delivers 1266W to the load and dissipates 1012 watts as heat. This is about 55% efficiency.&nbsp;In comparison, under the same conditions the SpeakerPower SP1-4000 delivers over 2000W to the load since it is over 90% efficient.&nbsp;I don&#039;t know about the other amps on your list since these specs are hard to come by. But since you have all the amps.....</blockquote>

[QUOTE="Brian Oppegaard, post: 31665, member: 527"] Re: Amp Tests (1 of 2) Very informative. I too like Don Keele's test for short term power. It is repeatable and correllates well to bass drum heavy music. Thump thump thump. For the folks doing music like dub step, trance, reggae etc, a long term power test would be an interesting addition to what you have done. Dub step in particular seems to be near constant LF sine waves. By long term power test, I don't mean hours, but a musically significant long term like more than 2-3 seconds up to 1-2 minutes. I think all the amps you have mentioned have limiters that cut back after a few seconds to keep breakers from blowing. So for instance if the amp has a 30A breaker, it may pull 50A for a few seconds before throttleing back output to where the mains draw is 30A. The power the amp will then deliver long term is limited by how efficient the amp is and how well it utilizes the power out of the wall. The FP 14000, from it's data sheet, at 30A mains input delivers 1266W to the load and dissipates 1012 watts as heat. This is about 55% efficiency. In comparison, under the same conditions the SpeakerPower SP1-4000 delivers over 2000W to the load since it is over 90% efficient. I don't know about the other amps on your list since these specs are hard to come by. But since you have all the amps..... [/QUOTE]

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