hey i know someone posted .....how could they test there speakers ........but i have sum subs that need to be tested how would i go about that????? thanxs

 

Just hooking them up and playing them is the easiest way to tell if they work. Other than that you can look at the sub and see if the voice coil seems to be separating. Or you could have a shop test it for you.

 

You can always do the POP test with a battery. Just for an instant touch a battery to the leads of the sub and watch for the cone to jump.