What's wrong with this sub?

[AJM511 10+ year member]

MY friend got 2 12" kenwood kfc-w3012's installed in his bronco. He uses a crunch 1600.4 amp bridged at 400rms each. So apparently he was playing some loud music, and the right sub just suddenly went quiet. It still vibrate, and makes noise, but about at 1/4 of the volume of the other sub. What's the problem?

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[Phoenix Risen 10+ year member]

is the box a common chamber or is it 2 separate chambers?

 

[dafobbishon3 10+ year member]

probably got a bad connection while you were wangin it.

 

[pro-rabbit 5,000+ posts]

could be many many issues

 

[AJM511 10+ year member]

I don't think it's the connections.. and it's two seperate chambers

 

[Phoenix Risen 10+ year member]

are the subs on the same channel or are they each on a pair bridged

 

[pro-rabbit 5,000+ posts]

I don't think it's the connections.. and it's two seperate chambers

no offense but if your posting here for help then your "thoughts" on the matter go out the window. Grab a DMM and check the ohm of each sub.

 

[AJM511 10+ year member]

On the sub? Is that to check if the voice coil is damaged?

@Phoenix, its 4 channels bridged to two channels, and each sub is on 1 channel

 

[pro-rabbit 5,000+ posts]

It will tell you if you have a bad sub or if you have a wiring issue. You can also give the center of the cone a little push(lightly) and if it feels tight, grinding, or makes noise...it is a bad coil. Could have also burnt out the leads as well.

 

[AJM511 10+ year member]

Alright thanks alot guys! But I have to go play in a basketball game and won't be back for a good 3 hours.

 

[Phoenix Risen 10+ year member]

it sounds like one of the channels on you amp is going out. also make sure you check your gains and low bass is set the same on the pairs of channels.

and pull the sub in question out of the box and make sure that both coils are connected and that one didnt come loose.

 

[teamquakecelica 10+ year member]

it sounds like your buddy needs to take his cheap a$$ to the classifieds section... and get some MUCH nicer new gear... like maybe some audiobahns.. and a REALLY nice power acoustic amp.. thread :/

OP: it could be anything.. description is to vague to be of any use

 

[Liquid Bass 10+ year member]

it sounds like your buddy needs to take his cheap a$$ to the classifieds section... and get some MUCH nicer new gear... like maybe some audiobahns.. and a REALLY nice power acoustic amp.. thread :/
OP: it could be anything.. description is to vague to be of any use

Why not give some helpful advise?

 

[Vossy 10+ year member]

Sounds blown.... but idk since it's seperate chambers.

Check connections and stoof

 

[Vagomire 10+ year member]

I had a pair of these before and this same thing happened to me.

Turns out one of the terminal connector things in the back popped out lol

 

P.S I loooooved those subs! They rattled windows with my KAC-9105d