how do i know if i blew a coil?

[slconde 10+ year member]

i simply was over powering a hdc12 with a zx2500 and i think i blew a coil. becuase 1st, i was pounding, than it got really low, like it was hardly hitting and i could hear something rattle. it sounded like a strainer from a snare drum. th an it eventually stop workin. how can i b sure its my sub and not the amp. the amp has a grn light so i figured the sub just needs to b reconed

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[k_schutte 10+ year member]

mulitmeter... do an ohm reading on the coils. For the record though, I would guess clipping was the issue, not overpowering. I fed my HDC315 almost 4Kw daily for months with no issues other than a little warm smell after a long night of cruising.

example on my D2 subwoofer:

 

[Bobby322 10+ year member]

put a dmm to it //content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif

 

[slconde 10+ year member]

so if it doesnt read 1ohm on both, then its the coil? fyi, its dual 1ohm.

 

[k_schutte 10+ year member]

so if it doesnt read 1ohm on both, then its the coil? fyi, its dual 1ohm.

they should be really close to 1ohm, I have seen 1ohm VC's read anywhere from like .7 up to like 1.3 but it will be pretty obvious if it is blown when you hook the meter up LOL

 

[Qxxx4]

would it give no reading??

 

[inkfx 10+ year member]

would it give no reading??

Usually it just gives really outrageous readings.

 

[Sir-Lancelot 10+ year member]

Usually it just gives really outrageous readings.

This ^

 

[k_schutte 10+ year member]

Usually it just gives really outrageous readings.

yeah, when I blew one of mine a couple years ago I think it was reading in the hundreds or something... I just remember I was like "how will I know if it is blown" then when I hooked the meter u I was like. "HOLY SHIT! that is blown for sure LOL)

 

[slconde 10+ year member]

thanks guys