Scraping sound when push on speaker lightly
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Joined: Sep 2011
Posts: 5
regular
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OP
regular
Joined: Sep 2011
Posts: 5 |
G'day there, I was playing some Frequency sweeps on the weekend and when it got down to 15 - 5hz 1 of the M80 woofers made a ticking sound when moving in and out . Just wondering what that could be and if there's a problem with the speaker? So on that note i checked the other M80 and VP180 by pushing the cone lightly and found that a couple mid range speakers made a scraping type sound and wondering also what that could be and if there's something wrong with the speaker. With them making that sound will that do damage to the speaker because i cant hear it from my seating position but would it effect sound quality? Hope you can help, Cheers.
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Re: Scraping sound when push on speaker lightly
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Joined: Sep 2008
Posts: 4,116
connoisseur
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connoisseur
Joined: Sep 2008
Posts: 4,116 |
Woofers are pooched. Every single one that is making the scraping sound. They need to be replaced.
Playing test tones at those frequencies you were just asking for trouble.
I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.
-Max Payne
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Re: Scraping sound when push on speaker lightly
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Scraping sound when push on speaker lightly
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Joined: Jan 2011
Posts: 1,291
connoisseur
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connoisseur
Joined: Jan 2011
Posts: 1,291 |
As BlueJays1 said, test tones are dangerous; it's the reason people don't listen to them all the time in place of music.
for some :-S people, test tones ARE music, but they must be very cautious and handle it as if it was dynamite.
Last edited by J. B.; 01/09/12 05:44 PM.
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Re: Scraping sound when push on speaker lightly
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Joined: Apr 2007
Posts: 4,877
connoisseur
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connoisseur
Joined: Apr 2007
Posts: 4,877 |
Did you have the m80's playing full range? That is even lower than an ep500 can play.
-David
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Re: Scraping sound when push on speaker lightly
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Joined: Jan 2011
Posts: 1,291
connoisseur
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connoisseur
Joined: Jan 2011
Posts: 1,291 |
those subs that can play 5-15 Hz are quite rare indeed. http://rotarywoofer.com/
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Re: Scraping sound when push on speaker lightly
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Joined: Feb 2009
Posts: 1,181 Likes: 1
connoisseur
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connoisseur
Joined: Feb 2009
Posts: 1,181 Likes: 1 |
Cool, thanks for the link JB - that's the 1st I've heard of that technology.
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Re: Scraping sound when push on speaker lightly
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Joined: Nov 2010
Posts: 901
aficionado
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aficionado
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Posts: 901 |
and expensive!
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Re: Scraping sound when push on speaker lightly
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Joined: Sep 2011
Posts: 5
regular
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OP
regular
Joined: Sep 2011
Posts: 5 |
They are set to LARGE and crossover at 80hz. I didnt think the M80's would go down that low! I was using the sweeps to checking the sub to see the SPL readings for different lower frequencies to see how even they were.
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Re: Scraping sound when push on speaker lightly
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Deano, welcome. If the mains are set "Large", there is no crossover for them. They play(or at least attempt to play)full range.
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