Please help....subwoofer problem

[DaveVT 10+ year member]

I bought a set of oldschool kicker comp C10's from a member on the forum. He made a vid of both showing the impedance and of them playing. I tested them today when they arrived and one reads 7.6 ohms and the other 26.6 but that changes of course if you move the cone. After moving it around a bit and letting it sit for 10 minutes im getting a reading of 20.9 ohms....the suspension is VERY loose....the cone moves very easily but there no noises and it does not smell burnt at all. Is the sub gone?.......

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[Falcons 5,000+ posts]

make sure your test leads are on the metal clamps tightly and not moving at all

 

[DaveVT 10+ year member]

They are, ive also pulled the sub out of the enclosure and tested it.....still same weird readings. Just checked the other one and the suspension was very loose too but it reads just fine....

reinstalled the other sub now its sitting at 13.7 ohms....other one still reads perfect.

 

[Falcons 5,000+ posts]

coil might have gone off centered a bit

 

[DaveVT 10+ year member]

Is there any way to fix this?

 

[Falcons 5,000+ posts]

not really sure. i dont know much about voice coils. wait till splaudio gets on here he will know what to do. he builds woofers.

 

[DaveVT 10+ year member]

Man this ******* blows. These things are 100% mint and one gets fucked up in shipping.......

 

[DaveVT 10+ year member]

No amp yet so I used my home receiver with the treble at minimum....played it at a low volume and slowly increased.....retested after and sitting at 7.6-7.7 ohms

If the coil was off a bit that must have realigned it.....Anyway, all set now.....I would have been so mad if one was dead lol

 

[Falcons 5,000+ posts]

glad you got it all fixed bro. have fun bumpin!

 

[SPLaudio 5,000+ posts]

the spiders were really soft on those subs because they were ment for sealed enclosures.

the voice coil off center or out of the sub isnt going to change imp as long as the sub is at rest.

it will not correct itself eather you had a bad connection OR ur tinsel lead is gonna break somewhere.

 

[Z1NONLY 10+ year member]

OR ur tinsel lead is gonna break somewhere.

^Prime suspect from what I've read so far.

The tinsel leads were the weak link on my old Orion XTR2's. They would get very black, and eventually fail, at the point where the tinsel lead meets the woofer cone.

 

[DaveVT 10+ year member]

Tinsel leads look really good.....either way, is there a way to fix this if they break?.

 

[Falcons 5,000+ posts]

told ya splaudio would hook you up with info

 

[hispls 5,000+ posts]

Misaligned coil would not cause wierd impedence. Clearly you were doing something wrong in measuring or as someone else said tinsel was failing.

Some subs are pretty easy to repair tinsels on, really depends where it breaks and what kind of sub. You'd need to pry off the dustcap to really tell if it's an easy fix or a total wash.

 

[DaveVT 10+ year member]

Misaligned coil would not cause wierd impedence. Clearly you were doing something wrong in measuring or as someone else said tinsel was failing.
Some subs are pretty easy to repair tinsels on, really depends where it breaks and what kind of sub. You'd need to pry off the dustcap to really tell if it's an easy fix or a total wash.

Im definitely not taking off the dustcap unless it dies completely....besides, I would probably damage the cone if I tried since they seem to be glued on quite well and considering the subs are in mint condition id really like to keep them that way.