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Thread: How do I hook these items up properly

  1. #1
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    How do I hook these items up properly

    I have a xm-504z http://goo.gl/3yvdV and two Kappa perfect 12dvq http://goo.gl/DdFu3 with dual voice coils. How do I hook these up properly with what I have? Reading about the ohms doesn't make sense to me as there are many ways to hook this up. Also, my box is a dual 12 inch but each chamber is separate if that changes anything.

    Thanks


    Amp
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    Speakers
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    Last edited by berizzo; 05-10-2012 at 04:09 PM.

  2. #2
    Raw Wave
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    So you are only going to use it as a sub amp?
    Since it only has 250W sub output (as a 3-speaket system), only 1 Kapa is needed.

    Just ensure the sub(s) is(are) wired as 4-Ohms or above. There are many sites that explain how to do this.
    [In summary, series connections ADD resistances. Parallel connections reduce resistances - eg, two parallel 4 Ohms = 2 Ohms, 4x parallel 4 Ohms = 1 Ohm.]

  3. #3
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    Quote Originally Posted by OldSpark View Post
    So you are only going to use it as a sub amp?
    Since it only has 250W sub output (as a 3-speaket system), only 1 Kapa is needed.

    Just ensure the sub(s) is(are) wired as 4-Ohms or above. There are many sites that explain how to do this.
    [In summary, series connections ADD resistances. Parallel connections reduce resistances - eg, two parallel 4 Ohms = 2 Ohms, 4x parallel 4 Ohms = 1 Ohm.]
    Alright. I'm pretty much a noob when it comes to car audio. So, I should use this amp for the car speakers? And what would be the best type of amp to get for the two twelves? A 1 ohm amp for more power?*

  4. #4
    Raw Wave
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    I'm not one to advise - I'm happy enough with my HU which is loud enough to overpower my tinnitus.

    I'd search for your car or type of music and match to what you want, and your budget.

    The extent of my advice is to use RMS values (ie, what I call RMS power and others call Continuous Power) and not get too carried away by specs & bullsh etc, though I'll often advise on batteries, caps, distribution, dual-batteries etc for bigger systems.

  5. #5
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    You actually need both Kapa's. Those are dual 4 ohm voice coil subs. So wire the two voice coils in series on the subs then put the two subs in parallel. That makes each sub an 8 ohm load and the two of them together a 4ohm load which is what your amp wants.

    Now, I suggest you get a different amp. That amp will severely under drive those subs.

    Are you planning on running your door speakers from an amp or the deck? If you have 4 speakers in your car that you want to power, use that amp for those and get a separate amp for your sub only. Something that has around 400 watts RMS at 2 ohms X2 or best yet, single channel 1 ohm stable with 400 watts. I'm not a huge fan of series wiring in speakers. Each voice coil colors the remaining sound.

  6. #6
    MySQL Error soundman98's Avatar
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    Quote Originally Posted by dmcdlrn View Post
    You actually need both Kapa's.
    only if he wants to run both and get a 4 ohm load.

    you don't need to run both voice coils if you really don't need to..

  7. #7
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    I suppose. To me that's like buying a 4x4 and living in Las Vegas. Why drag the extra linkages around for nothing.

  8. #8
    Constant Bitrate kolton5543's Avatar
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    Quote Originally Posted by dmcdlrn View Post
    I suppose. To me that's like buying a 4x4 and living in Las Vegas. Why drag the extra linkages around for nothing.
    Have you seen the area around Las Vegas
    Quote Originally Posted by Lincolnman View Post
    Your English is fine, don't apologize. You're doing better than most Americans.

  9. #9
    MySQL Error soundman98's Avatar
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    just like a four wheeler, it is for versatility in wiring.

    you can also connect a pot to the unused coils and dampen the cone movement by varying the pot setting to change the 'tone' of the sub.

  10. #10
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    Quote Originally Posted by kolton5543 View Post
    Have you seen the area around Las Vegas
    You know what I meant

    As for single coil on DVC sub. Yes you can do it. I have heard lots of arguments on this. I cant say I have ever seen a manufacturer recommend this config but I admit limited purchases of DVC subs in the past. The one thing to know is that your power handling will drastically be reduced. That alone makes it a bad idea. Buy a sub for your application, don't force a sub to fit the application. My opinion of course.

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