hooking up a dual voice coil sub? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-04-2007
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hooking up a dual voice coil sub?

hey guys, i have a 12" memphis sub, ported box, and a 760w sony amp. the amp is 2 channel and the sub is dual voice coil. so... i was wondering... how do i hook the sub to the amp with the dual voice coil. i was thinking that you hook the two positive connections on the amp the separate positive connections on the sub.. and then you take the negative and hook it to the opposite negative on the sub. is this right? ill put a picture of what i just described... i appreciate anyones help. thanks
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Old 04-04-2007
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I'd hook up one voice coil to each amp output. That's how my current one is configured.

You have to consider impedance if you are going to hook them up in series or parallel. If the coils are 4 ohms, and you hook them up in parallel, that's a 2 ohm connection now. You would use your amp in "bridged" mode for this and does it drive 2 ohms okay?

If you hook them in series and go bridged, that's 8 ohms and you might not get the full power of the amp in that configuration.

Tell us some more about the amp model and speaker specs and then folks can tell you better.
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Old 04-04-2007
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go here and select your specs for the sub, amp, and configuaration, this will give you a diagram:http://www.rockfordfosgate.com/rftech/woofer_wizard.asp
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Old 04-04-2007
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Old 04-04-2007
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That's good. Now if you get the voice coil ratings you can use the link that Brandyn gave you to determine what works.

The link doesn't give a minimum inpedance bridged, but it does use 4 ohms as the value they tested at. If you have a dual 8-ohm voice coil sub, then you can hook it up just like they did (parallel and resulting 4 ohms). If you have 2 ohm voice coils, you can go series.

if you have 4 ohm voice coils, you will want to use one speaker per amp and switch the amp to a mono input configuration if that's possible.
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Old 04-04-2007
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ok ill check what mine has after work.. thanks for your help guys...
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Old 04-05-2007
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well i got it all hooked up.. i wired it in series... it still needs to be tuned tho.. thanks for the help guys.
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Old 04-05-2007
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hey glad to help, i rember trying to get a couple of wiring questions answered when i was first trying to figure the whole audio thing out and had a hell of a time getting straight answers. hope that thing pounds, btw what fq is the box tuned to?
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Old 04-05-2007
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well... i dont really know... i also dont know how to tune a system.. or how to tell if it has a good tune or not... so i guess some more help is needed! thanks
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Old 04-05-2007
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If you like how it sounds, then it's "tuned", lol...
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Old 04-05-2007
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lol.. thats the technique i was gunna use too!
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