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    Chris02NeonSXT's Avatar
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    Ohms with amps and subs...need some help

    I've been reading a lot of posts and just trying to gather some general rules to follow. I'd just like to clear some stuff up regarding ohms.

    Lets say I have a sub that is rated at 4 ohms. Do I have to have it hooked up to an amp that puts out 4 ohms? What happens if the amp only puts out 2 ohms? And what happens if I have a dvc sub, that means I have 4ohms +4 ohms right? how does that work with the amp?

    I guess I'm just looking for a general explination on ohms.

    Thanks

    Chris







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    Re: Ohms with amps and subs...need some help

    Originally posted by Chris02NeonSXT
    I've been reading a lot of posts and just trying to gather some general rules to follow. I'd just like to clear some stuff up regarding ohms.

    Lets say I have a sub that is rated at 4 ohms. Do I have to have it hooked up to an amp that puts out 4 ohms?
    Amplifiers don't "put out" ohms. Ohms are a measure of impedance, or resistance. The less resistance, the more power the amplifier puts out, but the hotter and more unstable they get. If you have a SVC 4ohm subwoofer, you can only wire it in 4ohm.

    Originally posted by Chris02NeonSXT

    What happens if the amp only puts out 2 ohms?
    Generally speaking, the amplifier will put out far less at 4ohm than at two.

    Originally posted by Chris02NeonSXT
    And what happens if I have a dvc sub, that means I have 4ohms +4 ohms right? how does that work with the amp?

    I guess I'm just looking for a general explination on ohms.

    Thanks

    Chris
    The advantage of dual voice coils includes more wiring options, and often times a higher power rating. You can wire DVC4Ohm in parallel to produce 2 ohm, or in series to yield an 8ohm load.




    Is this not a reasonable place to park?

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    Chris02NeonSXT's Avatar
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    If you have a SVC 4ohm subwoofer, you can only wire it in 4ohm.
    What would happen if it was wired in 2 ohm? and What if I were to have two svc 4ohm subs, how would you wire that??

    Generally speaking, the amplifier will put out far less at 4ohm than at two.
    So basically the higher the ohm number the more resistance, and therefore a lesser amount of power? right?

    Thanks man,

    Chris




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    Mark_ab's Avatar
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    If you only have 1 SVC 4 ohm speaker, you can only wire it in 4 ohm. If you have two, then a 2ohm load is possible.




    Is this not a reasonable place to park?

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    ace7733's Avatar
    ace7733 is offline CarAudio.com Elite



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    check out rockfordswebsite, they have a woofer wiring calculator that lets you play around with different configurations and it will tell you the ohms

    http://www.rockfordfosgate.com/2002home



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