Dual 4 ohm voice coil sub and the wiring?

Question

I have a friend who wired a singe dual 4 ohm voice coil sub and I am trying to figure out what the load is. There is a positive and negative on one side and a positive and negative on the other side. He used the positive off of one side and the negative off the other side without bridging anything. To me that sounds way wrong. If someone could tell me the ohm load that would be I would appreciate it. Or at least tell me if that is wrong or not.

Answer 1

If he used the positive from one coil and the negative from the other coil and didn't connect any other wires, then there's no ohm rating because there's no connection between the two coils. The sub won't work at all in this way.

If he wired it like you're describing, then connected the two unused terminals together with another wire, then that would be a series wiring setup and the total impedance would be 8 ohms. http://mobile.jlaudio.com/graphics/Support/Tutorials/wiring_images/DVC_Series_1.gif

If he connected both positive terminals together and both negative terminals together, then connected them each to the positive and negative amp terminals, then that would be parallel wiring and the total impedance would be 2 ohms. http://mobile.jlaudio.com/graphics/Support/Tutorials/wiring_images/DVC_Parallel_1.gif

Check out this site for wiring diagrams and impedance information:

http://mobile.jlaudio.com/support_pages.php?page_id=161

Answer 2

yup twine it in parallel - that's what i'm at the instant doing with my 12" L7. you twine from the amp to the kicker voice coils with the white dot. then link the positives mutually and the negatives mutually to hold to 2ohm solid. it is going to coach interior the kicker sub instruction manual - if u don't have it then acquire it on their internet site.

Answer 3

Wired like so http://i81.photobucket.com/albums/j230/sparky3489/SINGLE-PARALLEL.jpg will result in a 2 ohm load.

Wired like so http://i81.photobucket.com/albums/j230/sparky3489/SERIES-DUAL.jpg will result in a 8 ohm load.

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