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If your pushing and hearing a scratching sound, the voice coil has probably been warped and is now rubbing. I've sent back a few drivers because of this happening. If it's not making any sound at all, then one of the wires was probably disconnected from the voice coil. Send 'er back!
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Joined: Jul 2000
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first off, thanks for your help guys.
i wonder if im gonna have trouble with warranty. i bought off ebay from one of those wholesalers.. never sent in a warranty card of anything...
also, when i get a new sub (or this one gets fixed), what should i do differently to keep the new infinity from being blown (or warped voice coil) again? i figured a 360 watt PPI would be perfect...
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Joined: Sep 2000
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You really have not had a whole lot of luck with the car audio products...geez...
I'm not sure what to tell you about the subs and how to handle the return. I contended from the beginning that the perfects power handling numbers were overrated, but that being said, you should have been okay with 360 watts...my guess, is that something was wrong with the sub from the beginning...
I've got one question. what kind of box were you using?
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Joined: Mar 2001
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Question, when you are pushing down on the woofers cone, are you pushing on it from the dead center of the woofer?
If you are pushing it from off-center it will make the coil rub against the pole peice regardless of the woofer being good. If you have not put an ohm meter to it yet or dont have one. Grab a 9 volt battery (cordless drill battery or even straight 12v from your car will be fine) connect a set of wires to the battery and just tap the wires to the terminals on the woofer. If it moves you got install probs, if nothing at all happens and you have an open voice coil. Dont worry this will not hurt your woofer. This is an old install trick to test polarity of a woofer (depending on how it moves (in or out) to dc voltage)
Could just a be bad glue joint in the woofer's voice coil/ cone joint (spot where the coil former and cone connect) the leads are just a small single copper wire at this point and are very fragile, if a shortage of a rubbery expoxy/CA(the glue most manufactures use) does not cover the wire, it will break, thus leaving you bassless.
If you tap on the cone and you a hear springing sound in the coil you may have bottomed the coil against the backplate and broken the coil that way too. I do not think you overpowered your woofer at all. Distortion kills woofers, 80% of bad speakers are killed by distortion. In your case sounds like a defect in the product.
2000 SVT Contour #1077/2150 MSDS Headers/B&M Shifter/H&R's/
1995 Contour SE V6 #????/Tons KnuProject, awaiting mass mods
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Joined: Sep 2000
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Originally posted by KnuKonceptz:
Question, when you are pushing down on the woofers cone, are you pushing on it from the dead center of the woofer?
If you are pushing it from off-center it will make the coil rub against the pole peice regardless of the woofer being good Good info KnuKonceptz, except I don't agree with the above comment, on any good quality woofer with a stiff cone, you should not get a voice coil to rub. I do agree that a wire within the woofer could have come off.
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Originally posted by dnewma04:
Good info KnuKonceptz, except I don't agree with the above comment, on any good quality woofer with a stiff cone, you should not get a voice coil to rub. I do agree that a wire within the woofer could have come off. Does this woofer has a dual spider suspension? (i.e Eclipse) If it does than I doubt it will rub like I stated earlier. The stiffness of the cone really wont be a part of the downward movement of the suspension on a woofer (its plays a part, but not one that effects the travel of the coil) The stiffness of the suspension sure will though. I have a "quality" new in the box JL w1, if you apply downward pressure to the outer edge of the cone it will rub the vc former against the pole peice. I tried this on and eclipse and the dual spiders kept the coil completely in line. You have to remember the cone and coil are one "solid" peice that fluctuate with polarity in the motor structure of the woofer and are controlled by the spider and surround. If the suspension is weak (weak maybe a a bad word here), it is possible to rub. Then again maybe his Perfect woofer was not so Perfect after all....lol  Try the battery test and see what happens.
2000 SVT Contour #1077/2150 MSDS Headers/B&M Shifter/H&R's/
1995 Contour SE V6 #????/Tons KnuProject, awaiting mass mods
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Joined: Sep 2000
Posts: 8,142
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ok, i agree with that. i just did a test and pushed on the cone of my shiva, a JL audio 10W6, JBL T80, Energy 8" mid, and a wharfedale mid, ScanSpeak 5" mid, Audax 8"...no scrapes. got scraping sound on an 10 year old pyle 10" along with a 6" energy mid.  I need to get some sleep...i'm so bored i'm pushing on speaker cones! haha
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Joined: Mar 2001
Posts: 1,447
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LOL I hear ya......
2000 SVT Contour #1077/2150 MSDS Headers/B&M Shifter/H&R's/
1995 Contour SE V6 #????/Tons KnuProject, awaiting mass mods
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