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  #1  
Old 12-06-2008, 09:39 PM
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Default Sub making a funny sound

I have a super old Pyramid Super Pro 8. I was giving it about 250 RMS and it was rattling really bad, it was still hitting like it should but the rattling really drowned it out. When i push on the cone it does have the little scratching sound but without the rattling it would sound perfect. The guy told me its the dustcap but i dont think so and there is a small hole in the surround.
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  #2  
Old 12-06-2008, 11:11 PM
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sub is done
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Old 12-07-2008, 12:49 AM
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sounds like the voice coils are warped.
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Old 12-07-2008, 12:59 AM
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Vc is gone. But it's a pyarmid don't even bother fixing it bro it's not even worth the cash.
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Old 12-07-2008, 08:50 AM
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Quote:
Originally Posted by splvictim20 View Post
Vc is gone. But it's a pyarmid don't even bother fixing it bro it's not even worth the cash.

i already knew that if it was bad that it was done. Why does the sub still hit as hard as it should but with the rattling. i dont know much about the voicecoils. Thats interesting.
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Old 12-07-2008, 09:03 AM
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basically the coils are rubbing the inside of the magnet but soon the coils will short out.
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Old 12-07-2008, 02:08 PM
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Quote:
Originally Posted by bwoodroof View Post
basically the coils are rubbing the inside of the magnet but soon the coils will short out.

Oh. Well i trashed it lol. They are some beefy 8"s for 17 years old. The magnet is 60 or 80 oz.
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Old 12-07-2008, 02:10 PM
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the spiders may be shot also cause the subs coil to move around in the gap
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Old 12-07-2008, 05:19 PM
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if they are 17 y/o, I could see worn out spiders being an issue. But, I'll agree that the sound is the vc rubbing / hitting the top plate. You need to wall socket that thing and get a vid of it's death.
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Old 12-07-2008, 06:54 PM
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Thats the way a Pyramid Super Pro 8 sounds.
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