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Old 04-06-2008, 05:03 PM   #1
plbeatty88

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What happens if a sub has a higher RMS then and amp?

And what if an amp has higher RMS then a sub?
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Old 04-06-2008, 06:08 PM   #2
fmshaw1971

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If the sub is rated higher than the amp, absoultely nothing will happen. It just means you could feed more power to the sub if you wanted. If you have a 1200 watt sub and you put 100 watts into it, well then you won't get much out of it.

If the amp is rated higher, you need to turn down the gains to limit the output on the amp so you don't overdrive your sub.

Beware of false specs. Know what your amp can do. Some amps put out much more than their rated power or much less if it's crappy. Some subs are also underrated and may take much more power than they claim, but you run the risk of wearing them out if you constantly overpower them.
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Old 04-07-2008, 01:08 AM   #3
plbeatty88

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So say I turn the gain up on an amp that has the same RMS as the sub. I'll blow the sub, but will I do any damage to the amp?
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Old 04-07-2008, 01:25 AM   #4
whersmyname

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You might or might not blow the sub. But no, you will not damage your amp.
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Old 04-07-2008, 01:40 AM   #5
sr20dem0n

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ugh...

An amp's potential has nothing to do with whether or not you'll blow your sub. The ONLY thing that affects whether or not you'll blow your sub is how you listen to it. You can blow a 200 rms sub with a 100 rms amp, and you can run a 10 rms tweeter on a 10,000 rms amp without any problems. It all comes down to YOU, not how much power the amp is capable of putting out before clipping, and not your gain setting.

And if you overpower your sub and blow it, you can very possibly kill the amp as well, depending on how exactly the sub blows.
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Old 04-07-2008, 02:45 AM   #6
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you might not get all you can out of the sub if the subs rms is higher

and having an amp that has a higher rms than the sub is great, gives you headroom
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