On this one song my subs make a poping noise (like something it slapping in it) on one bass note and it's like the popping noise on some amps (oh yeah the subs are hooked up at home with surround sound.) I want to know is it's bad for the subs and what can I do to fix it.

 

Maybe you're driving them too hard and they're bottoming off the backplate.

 

ok here is the thing my subs are 400 watts RMS a peice and I'm only giving them 50 Watts so it can't be that

 

Lead slap?
Unglued Spider?

Check those. Basicly find the nosie.

X

 

400w /50w.you are under driving/powering them.sweet spot is 2/3w of the rms raiting.Don't do it!!!!

 

What a crock. There is not such thing. What happens when you turn the volume down?????

Check what I have said.

X

 

That is what I was thinking, other then maybe bottoming it out!

 

It still make the noise but not as load. And it's only thats one song it seems so I guess I have to get rid of it.

 

I'd guess tinsel lead slap, personally. Take the driver to your local dealer, have them inspect it for flaws (do not let them send it away !). It could be the sub bottoming out especially if it's a ported, 6th order bandpass, or very large sealed enclosure combined with a very low frequency.

 

The thing is they are in a small sealed box and it's only that one song on some bass note and that song was a remix off the net and might of been made not right. So I deleted it. They seem to work fine on every other song (even on bass tester), and I haven't really done much to them this whole year I have had them and the most they have ever has in them is 300 watts but I will take them in thanks for the help.