Did i blow my sub?

[DylanBeatz 10+ year member]

Ive had this sub for probably 8 years, its a 12" Kicker CVR and its always been fine and today when i was bumping it suddenly shut off. I pulled over and opened the trunk and my box slid all the way to the rear of the trunk. The sub was touching the wall of the trunk so the cone had to be hitting the wall of the trunk hard. So did i blow it this way because of the contact? Its not making any noise at all. It's never done this. All the wires are fine. It didn't smell or anything or make any weird noises, just stopped playing.

Any ideas on how to check if its blown? Thanks

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[LosIsATool 5,000+ posts]

Probably a loose connection from it sliding around. Normal

 

[DylanBeatz 10+ year member]

Probably a loose connection from it sliding around. Normal

you mean like a speaker wire? Or do you mean something inside the sub woofer came loose?

 

[LosIsATool 5,000+ posts]

Speaker wire. If the amp slide check everything from the fuse back

 

[Massive spl]

If the woofer couldn't move while it was trying to play then yes you burned up the coil. The woofer needs to move to cool itself, it if couldn't move it was just building up heat and fired the coil. Get out your dmm and see what the coil reads

 

[DylanBeatz 10+ year member]

If the woofer couldn't move while it was trying to play then yes you burned up the coil. The woofer needs to move to cool itself, it if couldn't move it was just building up heat and fired the coil. Get out your dmm and see what the coil reads

thanks man, exactly what do i do with the dmm? Never tested a sub like that before? Put the positive in the positive and the neg in the neg and test for what?

 

[Massive spl]

thanks man, exactly what do i do with the dmm? Never tested a sub like that before? Put the positive in the positive and the neg in the neg and test for what?

Ohm . If the woofer is d4 it would be wired to 2ohm or 8ohm. If it reads 0 or like 874636 it's toast

 

[DylanBeatz 10+ year member]

okay awesome thanks

 

[DylanBeatz 10+ year member]

okay so im pretty sure my sub is fine, it read 2.2 ohms consistently. So then i connected my dmm to my amp and played a test tone as if i was setting the gain and there's no output voltage at all. Its lighting up though. So im very confused. Does this mean my amp is blown? How do i check the fuses on it?

I'm really appreciating the feedback guys

 

[Massive spl]

If the fuses were blown the amp wouldnt Light up... If you can try a different amp and see if the amp is the problem

 

[DylanBeatz 10+ year member]

Well i realized the protection light was on the amp and i took it to a local car audio shop and they tested it for me in their shop and the guy came back saying that it wont get out of protection mode. He said its destroyed. We also both noticed that when you pick it up and carry it that theres something inside that sounds loose.

It was a jbl p180.2. That thing was a great amp, held up for so many years and put out more power than it was rated for. I wonder what killed it, do you guys think it was because when i put this system back in my car 2 days ago that i never mounted anything in the trunk? Everything was just sliding around, i never had it like that before but i was just lazy two days ago, was meaning to get some velcro to secure everything.

 

[Jeffdachef 5,000+ posts]

stuff sliding around could easily cause shorts.

 

[DylanBeatz 10+ year member]

stuff sliding around could easily cause shorts.

****, now i feel like an idiot. Is there any easy cheap way to fix it or do i have to just get a new amp?

 

[Jeffdachef 5,000+ posts]

****, now i feel like an idiot. Is there any easy cheap way to fix it or do i have to just get a new amp?

new amp time. Amp repair labor and parts = to a new amp cost anyways.

 

[DylanBeatz 10+ year member]

alright thanks a lot man, hopefully it just died from old age and not from sliding around cuz then i feel dumb but i will definitely never let another amp and box slide around ever again

Thanks for the help everybody, you guys were great, very helpful