Not breaking in a woofer = bad voice coil?

[jrz126 10+ year member]

I just bought 2 15" L7's and build a pretty sweet ported box for them.

I put them in and gave them alittle power (probably about 50%) from a power accoustik 2400D. I noticed one of them wasnt moving as much as the other, so I checked the voice coils and sure enough 1 of the coils is open circuit. I didnt check the VCs before I powered it up so I don't know if it is something I did, like too much power without breaking it in.

I called the company and I can send it back and get a new one, but I'm kinda concerned that I may have damaged the other one?

Anyone have a similar experience?

Click to read more...

 

[sundownz Pro Seller]

How long did you play them before it happened? It may have even just been a factory defect.

 

[IgnoreMe 5,000+ posts]

well if it was moving but not as much...it isn't an open...

but anyways, no you didn't damage the other sub.

 

[casper97ta 10+ year member]

x2- guarantee it was already messed up before you hooked them up

 

[Telegon80 10+ year member]

kicker = made in china.

i wouldn't be surprised if it came like that from the factory.

 

[Warbleed 10+ year member]

It's quite possible the driver was DOA. Hard to tell though. If you didn't see any smoke or smell any nastiness, I doubt you blew it from trying to break the woofers in. Are they DVCs or SVCs? If just one of the coils in a DVC is gone, thats more likely to be a factory defect than a blown coil from abuse.

 

[IgnoreMe 5,000+ posts]

kicker = made in china.
i wouldn't be surprised if it came like that from the factory.

you say kicker made in china, like 90% of everything America owns isn't...

thanks for the insight.

 

[audioholic 5,000+ posts]

well if it was moving but not as much...it isn't an open...

If they are sharing airspace in the enclosure, the 'live' sub could have been semi-powering the dead sub via pressure in the box. Quasi PR.

I dont see how there's any guarantee the sub was damaged/defective before it was mounted. But Id still assume that if I were you and take steps to return it as if that is the case. Probably was defective.

 

[Lakota 5,000+ posts]

Breaking in a sub loosens up the suspension...

 

[Patrick Simmons 10+ year member]

I say DOA!

 

[IgnoreMe 5,000+ posts]

If they are sharing airspace in the enclosure, the 'live' sub could have been semi-powering the dead sub via pressure in the box. Quasi PR.
I dont see how there's any guarantee the sub was damaged/defective before it was mounted. But Id still assume that if I were you and take steps to return it as if that is the case. Probably was defective.

fair enough, but its not moving under its own power //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[audioholic 5,000+ posts]

fair enough, but its not moving under its own power //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

No, but that would explain why it was 'moving less'. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Telegon80 10+ year member]

you say kicker made in china, like 90% of everything America owns isn't...
thanks for the insight.

there are still some products that are made in the USA.

 

[IgnoreMe 5,000+ posts]

there are still some products that are made in the USA.

well of course there are hence the 90% in my post...

my RF amp was made in the usa, but just cause its made in china doesn't mean its a piece of junk. its a piece of junk if the manufacture doesn't give a **** and says "make it as cheap as possible". the chinese don't make shitty products on their own, they make shitty products cause we ask them to.

 

[95Prober 10+ year member]

there are still some products that are made in the USA.

haha! yeah, but the parts to assemble it are 90% made in China //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif