My wife made me take it to the "Pros" for install. They stated, "One of the subs is blown." I suspected improper gain setup. By 2 new subs do install my self, set the gain and voila output!
Now I want to use the old subs for another installation. Performed the battery test, cones do not push in by hand. So far so good. However, immediately after the battery test I use the DVOM to check impedance. I get readings all over the place. After 2-3 seconds they stabilize at a constant 3.7 ohms (They are JL 12's with 4 ohm impedance, I am unable to find a model number on them so I'm unsure of the rating).
Are there any other test procedures to verify if they are good?
Thanks,
Guy
A little clarification:
"My wife made me take it to the "Pros" for install. They stated, "One of the subs is blown." I suspected improper gain setup. By 2 new subs do install my self, set the gain and voila output!"
They said the sub being blown caused zero output from the enclosure. The rest of the system worked flawlessly.
Anyone have any thoughts?
Thanks, Guy
What "battery test" did you do? using a 9V battery you should be able to cause the cone to move in or out depending on the polarity. Plus, with no voltage applied the cone should more by hand. Ohm readings "all over the place" could mean a lot of things, and it could mean nothing. Try connecting each speaker to an amplifier and test it for output.
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Support the12volt.comIf the cone of the woofer was moving at all when you put the ohm meter on it, it is common for the reading to jump around. Any noises near the woofer will make it move and give you the varying reading. If the rear car speakers were playing, the sound from them could have caused the variations.
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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB