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Reload Thread: Correct me if I'm wrong but....

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    ace_800's Avatar
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    Correct me if I'm wrong but....

    Wiring 3 D4 subs I can get a 2.67 ohm load and a 6ohm load. So I can only run a 2 ohm load amp or a 4 ohm load amp? No chance for a 1 ohm load right? But going off 12volt, I can??

    Option 1 (series/parallel) = 2.67 ohm load
    Voice coils wired in series, speakers wired in parallel
    Recommended Amplifier: Stable at 2 or 1 ohm mono

    Option 2 (parallel/series) = 6 ohm load
    Voice coils wired in parallel, speakers wired in series
    Recommended Amplifier: Stable at 4, 2, or 1 ohm mono
    Last edited by ace_800; 05-03-2011 at 10:53 AM.



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

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    Re: Correct me if I'm wrong but....

    I'm not sure what your asking here. You've been around long enough to know how to figure impedance. If your load is 2.67 then of course you can run a 1 ohm stable amp, your just not going to get full power out of it.




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    Re: Correct me if I'm wrong but....

    how did you figure your ohm loads for 3 D2 subs? i have 1.67Ω and .33Ω



    Here is my feedback Thread: http://www.caraudio.com/forum/showth...ght=fasfocus00

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    Re: Correct me if I'm wrong but....

    Correction D4 not D2. Bubba I get impedance but I've never run 3 subs, always been 1 or 2 subs. Just not 100% sure if I will get the best power at 2ohm or 1ohm amp for a 2.67ohm impedance. Figure 2ohm, but the amp I'm looking at is 1200rms @1



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

    66 Pontiac GTO, modified stock radio, Crossfire CFA 302, Kicker KS6.2's in the front kicks, Crossfire CFA 452 for the 6x9's I need.


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    Re: Correct me if I'm wrong but....

    An amp will only run at the ohm load presented to it by the speakers. Thus, if your drivers wire down to 2.67, even an amp that is stable @ 1 ohm, will be running @ 2.67 ohm, and producing as much power as it does @ 2.67. The only thing separating a 1 ohm and 2 ohm stable amplifier is how they are rated, and what is a safe impedance to run them at.

    For example: An AQ 1200d gives 1200rms @ 1 ohm, but would be closer to 600 @ 2.67 ohms. A Kicker ZX500.1 is not 1 ohm stable, but will produce 500rms @ 2 ohms, which is its main rating.

    Impedance is a variable that affects power.



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    Re: Correct me if I'm wrong but....

    Well just remember, if it's rated for 1200w @ 1 ohm it's going to step down for each increase in impedance. So it's likely to be 600w @ 2 ohm, etc. I would suggest looking for an amp that does MORE than what you need at 2 ohm. So if your looking for 1200w then find an amp that does 1500 at 2 ohm.




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    Re: Correct me if I'm wrong but....

    Quote Originally Posted by bubbagumper6 View Post
    Well just remember, if it's rated for 1200w @ 1 ohm it's going to step down for each increase in impedance. So it's likely to be 600w @ 2 ohm, etc. I would suggest looking for an amp that does MORE than what you need at 2 ohm. So if your looking for 1200w then find an amp that does 1500 at 2 ohm.
    Not a bad idea. Kicker and Alpine both make many amps that are primarily rated @ 2 ohms. That may make it easier on you.



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    Re: Correct me if I'm wrong but....

    Quote Originally Posted by Bumpin' Goalie View Post
    Not a bad idea. Kicker and Alpine both make many amps that are primarily rated @ 2 ohms. That may make it easier on you.
    And cheaper.




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    Re: Correct me if I'm wrong but....

    I was just about set on the Massive Audio N5 too



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

    66 Pontiac GTO, modified stock radio, Crossfire CFA 302, Kicker KS6.2's in the front kicks, Crossfire CFA 452 for the 6x9's I need.


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    Re: Correct me if I'm wrong but....

    Then get it. You don't NEED to run rated power to a sub.



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    Re: Correct me if I'm wrong but....

    Quote Originally Posted by ace_800 View Post
    I was just about set on the Massive Audio N5 too
    @ 2.67 ohms, that sub channel would give you roughly a rated 300-350rms.



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    Re: Correct me if I'm wrong but....

    Quote Originally Posted by Bumpin' Goalie View Post
    @ 2.67 ohms, that sub channel would give you roughly a rated 300-350rms.
    LOL, that will barely handle 1 sub....time to keep looking.



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

    66 Pontiac GTO, modified stock radio, Crossfire CFA 302, Kicker KS6.2's in the front kicks, Crossfire CFA 452 for the 6x9's I need.


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    Re: Correct me if I'm wrong but....

    kicker zx1500.1



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    Quote Originally Posted by BayAreaBimmer View Post
    And the big three are subs, an amp, and head unit?

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    Re: Correct me if I'm wrong but....

    unless im mistaken. parallel/parallel will land you at a .66 ohm load...



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    Re: Correct me if I'm wrong but....

    Quote Originally Posted by Phoenix Risen View Post
    unless im mistaken. parallel/parallel will land you at a .66 ohm load...
    Yessir.



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