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Old 02-04-2009, 06:05 PM   #6 (permalink)
Coyote X
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Join Date: Dec 2007
Location: Southen West Virginia
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Metro XFi - '93 Geo Metro XFi Convertible
90 day: 62.17 mpg (US)

DR650SE - '07 Suzuki DR650SE
90 day: 55.26 mpg (US)
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The way car amps are rated is totally misleading. So when it says 1500W that does not mean it can handle a 1500W continuous load like a motor trying to actually put out some real horsepower.

Just think of how big of a heatsink/heat pump would be required if the speaker and amp actually had to dissipate 1500W of power. Even a 150W sustained load on a normal speaker voice coil will overheat it very quickly. A true RMS value is more like what the power output of it would be but there are so many 'marketing' rms values out there it is hard to find real information on them.

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