How much can you overpower a sub?


Justinw303

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I know it's always better to overpower a sub than underpowering it, and it's not overpowering that usually blows a sub, etc., but how much is too much.

For instance, could you send 200 watts to a sub with an RMS of 140?

I'm looking at a CompVR that handles 200 watts in the smallest recommended sealed box size, but only 140 watts at the maximum. Would I hurt anything by continuing to power it like this?

 

amedeuce

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no problem, only 60 watts over.

 

Justinw303

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How is it better to overpower than underpower?.... //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif
It's what I've ALWAYS heard. Better to push a sub a little hard than push an amp a little hard.

 

jsloan10

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Kicker is conservative in its ratings, you will get away with the extra 60watts no problem, unless your playing test tones continuously at full volume.

 

djjdnap

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they say you can over power a sub because distortion usually kills a sub, meaning you will turn the amp up and atry to get those extra watts out of it but really just give off distortion.

BUt your right if the gains are set right it doesnt matter

 

Justinw303

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So it really depends on how smart you are with your amp?

I know enough not to set my gains too high because I've heard the horror stories, so I guess I'm safe.

 

PhatTonyDeMarco

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So it really depends on how smart you are with your amp?
I know enough not to set my gains too high because I've heard the horror stories, so I guess I'm safe.
No no no... You need to PROPERLY set your gain. Now just set it to where you "think" it might be good. Read the "How to set your gain" sticky in the amplifier forum, you will learn something.

 

Polecat

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plus, actually in a sealed, you can usually power it more.

 

JimJ

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they say you can over power a sub because distortion usually kills a sub,
arrrrrggghh.

Squeak and I have answered this three times in the past week //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Distortion does not inherently kill speakers.

As for the original question, you can overpower a sub by several thousand watts, but only if you really know what you're doing, in limited apps. SPL competitors "burp" their subs very close to enclosure tuning (so excursion is the lowest it possibly can be) for very short lengths of time (to prevent thermal failure of the driver, because there's no VC cooling).

In normal usage, I wouldn't go over 100W unless you know the sub can take it (like older model Type R's, which were notoriously underrated).

 

RandyJ

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arrrrrggghh.
Squeak and I have answered this three times in the past week //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
It does seem to be quite a popular topic as of lately.

To further detail what he is saying, the only reason a sub will fail will be due to either thermal or mechanical limits being reached and surpassed. You can send all sorts of distorted shit to yoru sub and it could take it like a champ, but if your coil/s overheats then that is when you will run into problems. Or if you overexcurt you can run into problems also. Broken pole pieces, mis-aligned coils, bla bla bla.

 

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