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<blockquote data-quote="jujumantb" data-source="post: 564485" data-attributes="member: 555241">Depends how you wire them.&nbsp; Wiring a pair of voice coils in parallel (&quot;+&quot;s together, &quot;-&quot;s together) then the impedance (ohms) is cut in half.&nbsp; So say you just had ONE dual 4 ohm sub.&nbsp; On that sub, you have TWO seperate 4 ohm voice coils, if you wired them in parallel like I explained, it would present a 2 ohm load (cut in half)&nbsp; Series wiring (+ on one VC to - on the other VC, then the left over + and - go to the amp) does the opposite, it DOUBLES the impedance (ohms).&nbsp; So if you wired that same dual 4 ohm sub in series, you would present an 8 ohm load to the amp.&nbsp; When you have more than 2 voice coils total (in your question you have FOUR 4ohm coils), you need to combine wiring techniques (series-parallel, parallel-parallel series-series etc..).&nbsp; See examples of those at the link<a href="http://www.jlaudio.com/tutorials/wiring/index.html" target="_blank">http://www.jlaudio.com/tutorials/wiring/index.html</a>In your question, you could wire those subs in series-parallel to get a 4 ohm final load, OR wire in parallel-parallel to get a 1 ohm final load.The amp you get should put out the most power at whatever load you wire your subs to.</blockquote>

[QUOTE="jujumantb, post: 564485, member: 555241"] Depends how you wire them. Wiring a pair of voice coils in parallel ("+"s together, "-"s together) then the impedance (ohms) is cut in half. So say you just had ONE dual 4 ohm sub. On that sub, you have TWO seperate 4 ohm voice coils, if you wired them in parallel like I explained, it would present a 2 ohm load (cut in half) Series wiring (+ on one VC to - on the other VC, then the left over + and - go to the amp) does the opposite, it DOUBLES the impedance (ohms). So if you wired that same dual 4 ohm sub in series, you would present an 8 ohm load to the amp. When you have more than 2 voice coils total (in your question you have FOUR 4ohm coils), you need to combine wiring techniques (series-parallel, parallel-parallel series-series etc..). See examples of those at the link [URL="http://www.jlaudio.com/tutorials/wiring/index.html"]http://www.jlaudio.com/tutorials/wiring/index.html[/URL] In your question, you could wire those subs in series-parallel to get a 4 ohm final load, OR wire in parallel-parallel to get a 1 ohm final load. The amp you get should put out the most power at whatever load you wire your subs to. [/QUOTE]

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