Why did my sub stop working all of sudden

[ZIG~ZAG 10+ year member]

I have 1 rockford fosgate T1 10in and a jbl gto7001 amplifier. I was driving one day and my system was properly working and than later on i realized my sub was no longer working. i have checked all wres and fuses but sub still isnt working. What could be the problem?

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[Slo_Ride 5,000+ posts]

you blew it

 

[ZIG~ZAG 10+ year member]

What would be the reason to blowing my sub? My music wasnt playing loud at all!

 

[Slo_Ride 5,000+ posts]

I have know idea, probably happened over time and just decided to die that day. Take it out and check your coils with a dmm. Does it make any kinda noise when you push on the cone? Spider or anything torn? Does it smell burnt?

 

[Slammer 10+ year member]

You said that you checked all of the wires and the fuses, which sounds like you checked your amp. Pull the sub out and check that your speaker wires are still in place. Also check where your speaker wires connect to the box (inside and out), unless you have the wires going directly from the amp to the sub. If everything is in place and connected, but you don't get anything at all from the sub, it sounds more like an amp issue. Check vcs with a dmm and hook another speaker to your amp if you have one. This will help you to isolate the issue. If it were the sub, you should have had some sort of warning before it happened. Smell, rattle, etc.

 

[TMali 10+ year member]

push down on the cone to feel for any stiffness or a crunching sound, the coil could have unraveled or became disconected

 

[ZIG~ZAG 10+ year member]

Alrite i checked the sub its self. The sub looks fine no tears no cracking no stiffness and the cone is fine. I havent check the coils though with a dmm. The sub was still properly connected also, inside and outside of the box. So as of what Slammer said it could be an amplifier issue. I do not have a dmm though. Around how much would a dmm cost? Besides that ill have to find a friend with another sub to hook up to my amp.

 

[Slo_Ride 5,000+ posts]

$15-20

 

[ZIG~ZAG 10+ year member]

Thanks for all the help. Later today im gonna hook another sub up to my amp and see what happens from there.

 

[hrtbrk1 5,000+ posts]

check the fuse on the sub...or was that only on the t2

 

[ZIG~ZAG 10+ year member]

Ok, so i had a friend hook his 12in Q-Power Sub to my amp and his sub was working properly but mine still doesnt. So does that mean my sub is blown???????? And there is not a fuse on my T1 so that would be only on the T2

 

[Slo_Ride 5,000+ posts]

yep, if your buddy has a dmm check and make sure your coils are reading the correct resistance.

 

[ZIG~ZAG 10+ year member]

Well this isnt good, ive only had this sub hooked up for about a week now. I dont know much about a dmm, (never used one). But what should my coils be reading for the correct resistance using the dmm.?????

 

[Slo_Ride 5,000+ posts]

Only you know that. Should say on the magnet whether its a dual 2 ohm or dual 4 or whatever.

 

[ZIG~ZAG 10+ year member]

My sub is Dual 4 ohm. 600 Watts RMS 1200 Watts Peak. So is the dmm supossed to read around 600?? Sorry if thats a stupid question