How does a sub freeze up?

[Supergumby5000 5,000+ posts]

I just put my sub box into my truck, and noticed that one of the subs is frozen.... no movement in the cone at all.

Never seen power, only been touched to mount into the box.

I am guessing that this is due to the coil not being lined up or too tight? Could that be done in shipping.

Perdy confused right now.... //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

Click to read more...

 

[Millertime1028 10+ year member]

Most of the time the coil will unwind due to the glue melting down. Then the coil binds up against the pole piece and motor. Also a shifted magnet if the gaps were tight to begin with can do this as in your case.

 

[ThatChevyGuy 5,000+ posts]

its never seen power though.

Shipping damage most likely

 

[Supergumby5000 5,000+ posts]

both coils read out just fine too.... 1.7 each

 

[plugitin 5,000+ posts]

motor has shifted....shipping problem

 

[BeAlLsTaR13 10+ year member]

put 10k on it for burps, see if it moves

only reason i say that was cuz this happened to a friend of mine, it seized up and i wanted to see if 10k watts would get it back in-line... never tried it or seen it done so im curious

 

[m3dia_lab 10+ year member]

wouldn't the coils read differently if the motor had infact shifted? since the coil would be up against the motor?

 

[TKCARAUDIO 10+ year member]

motor has shifted....shipping problem

x 2 my L7 15s came from kicker and one was froze because of the SOB @ UPS