is my woofer blown?

[chrisw91 10+ year member]

its a rockford shallow mount, dual 4, 12". had 400 rms going to it, and today it started making a rattling like sound then stopped. doenst move at all. hard to see anything in the pics. does warranty cover this?

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[evildave101 10+ year member]

sounds like a burnt/melted coil

 

[Trey803 5,000+ posts]

check the coils.....if u can see them look for burnt blackish residue....if it isnt blown they should be shiny copper colored

 

[bonesninja 5,000+ posts]

put a DMM on that shit.....

 

[chrisw91 10+ year member]

it is copper colored at the top, then kinda fades to black

 

[chrisw91 10+ year member]

put a DMM on that shit.....

on what? i put it on the amp, it is putting out still.

 

[brtnboarder3241 5,000+ posts]

on the sub

 

[chrisw91 10+ year member]

how would i hook it up? never done that? what setting do i put it on?

 

[bonesninja 5,000+ posts]

put it on Ohms put one lead on one terminal, the other lead on the other terminal

 

[ssackett 10+ year member]

Good excuse to buy another woofer... So yes its blown //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[chrisw91 10+ year member]

have power hooked to it? do i hook it to positive on one, then negative on other terminal?

 

[bdawson72 5,000+ posts]

have power hooked to it? do i hook it to positive on one, then negative on other terminal?

Yes, but you dont need to have power hooked to it.

 

[bonesninja 5,000+ posts]

have power hooked to it? do i hook it to positive on one, then negative on other terminal?

no power

 

[chrisw91 10+ year member]

alright, i got 207 k ohms. and .2 m ohms. i dont know what the difference in the letters are. but that is what my dmm is capable of, and those are the readings

 

[Supergumby5000 5,000+ posts]

alright, i got 207 k ohms. and .2 m ohms. i dont know what the difference in the letters are. but that is what my dmm is capable of, and those are the readings

does your DMM have a beep tester? If so, set it to that, and touch each terminal on the sub (not hooked to power). If theres no beep, then the sub is f*cked