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<blockquote data-quote="n2audio" data-source="post: 5787399" data-attributes="member: 540940">It&#039;s hard for me to believe people actually want to try to nit pick a general rule of thumb.&nbsp; It&#039;s not perfect -- I think that is pretty obvious.This has never been a way to determine the ACUTAL power an amp can produce to any respectable degree of accuracy, but if a newb is looking at a pyramid at the local pawn shop that says 2000 Watts Of MIND blowing POWAH, but it has a pair of 25&#039;s -- it is plenty accurate to tell them they should probably walk away, or at least recognize they&#039;re probably looking at 500-600w of usable power.Recently someone&#039;s been dealing with a Quantum qsa1000d.&nbsp; It&#039;s a class a/b with a pair of 30&#039;s rated for 1000w.&nbsp; It is pretty safe to say it&#039;s not going to do 1000w.10-12w/A IN GENERAL.&nbsp; IT is a GOOD rough ESTIMATE.Why people want to drag 5 or 10% efficiency variations into the mix, or 13.8v vs 12v vs 14.4v, or how this one amp only had a 1A fuse but my buddy&#039;s uncles roommate clamped it at 68 octillion watts Etc etc etc is BEYOND me.Don&#039;t debate it.Deal with it.</blockquote>

[QUOTE="n2audio, post: 5787399, member: 540940"] It's hard for me to believe people actually want to try to nit pick a general rule of thumb. It's not perfect -- I think that is pretty obvious. This has never been a way to determine the ACUTAL power an amp can produce to any respectable degree of accuracy, but if a newb is looking at a pyramid at the local pawn shop that says 2000 Watts Of MIND blowing POWAH, but it has a pair of 25's -- it is plenty accurate to tell them they should probably walk away, or at least recognize they're probably looking at 500-600w of usable power. Recently someone's been dealing with a Quantum qsa1000d. It's a class a/b with a pair of 30's rated for 1000w. It is pretty safe to say it's not going to do 1000w. 10-12w/A IN GENERAL. IT is a GOOD rough ESTIMATE. Why people want to drag 5 or 10% efficiency variations into the mix, or 13.8v vs 12v vs 14.4v, or how this one amp only had a 1A fuse but my buddy's uncles roommate clamped it at 68 octillion watts Etc etc etc is BEYOND me. Don't debate it. Deal with it. [/QUOTE]

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