Just to add to the above...
I have two subs each 1000W rms @ 4Ohms.
In order to power these and get the full efficiency fomr them I need to use at least 1500W rms amps on each sub, for my particular subs it's ideally 2Kw rms per channel.
This is because lots of music these days produces frequencies of +6db above the normal program,, if you don't have enough power on tap to re-produce these correctly, then you run the chance of clipping or even sending DC to the drivers.
It also is a matter of do you ever run the sub up to it;s power ratings or do you never run it that high...?
What ever you do with the sub, take the RMS figure and add a good 50% extra onto the Amps output to allow for overhead.
Your speakers and guests will thank you for it.
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Technologicaly Yours,
HeadlineDJ
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