Lately one of our subwoofers has been making a loud 'popping' or 'snap' kind of noise. It's pretty loud too.Typically it happens when we have the amp cranked way up, and when our bass player hits certain notes. It's a Yamaha SW118V (crap, i know... we get very little sound as it is), and the amp is a QSC RMX 2450. It's an 8ohm speaker rated for 600w, and the amp is pushing 500w at 8 ohms.If i turn the amp down some, then the problem seems to go away for a while. We have a matching speaker running on the same amp (different channel), and it doesn't appear to have any problems. We switched channels, and the same speaker 'pops'. Sound still comes out, though these speakers seem to suck... don't get hardly anything out of 'em for the amp i'm using them with (at least it seems that way).Took it down to the music store twice, and they couldn't figure it out. They called Yamaha, and was told that i need to run these with a crossover, which doesn't make any sense to me.Any ideas?
When I first started, I had two of the same speakers. They were acting exactly as you are describing. Not too long ( actually, immediately) after I started hearing that noise, they gave up the ghost. Magic Smoke Expelled!!Good luck and start saving now for some better speakers. Pat
Great.. just what i wanted to hear. LOLThis might sound stupid, but... do speakers ever wear out? Not in the sense of blowing up, but in the sense of 'it just don't perform like it used to'.
.....They called Yamaha, and was told that i need to run these with a crossover, which doesn't make any sense to me.Any ideas?
If you aren't using a crossover, you should get one (Regardless of whether it fixes the popping noise)It would not surprise me at all if a crossover does fix the problem by keeping frequencies above 100 hz out of the subs.
Steve - Obviously, i'm doing something wrong then, as I didn't know you were supposed to dump all frequencies above 100hz (is this standard, or is it simply a cruddy Yamaha design flaw?). I don't have a crossover, but i do have a 31 band in front of the amp. Do i simply dump all the frequencies above 100hz?? Is this method the same or different than what a crossover actually does?
Hey Shawn, read this: http://en.wikipedia.org/wiki/Audio_crossoverThese may help also: http://www.rane.com/library.htmlThis may help you understand things a little better. Great info to be had with a little searching.Hope it helps.Pat
This does raise another question though - My subs say they have a frequency response of 30hz to 2khz. If i cut off everything above 100hz like you guys said, then won't i effectively have a frequency range of 30hz to 100hz? It seems like such a minimal amount to work with. If i can't get enough of that low frequency to the subs, then they would seem nearly useless. What am i missing?
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