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Thread: confused??????? ohms

  1. #1
    Low Bitrate acornstu's Avatar
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    Help!!!!!!!!!!!

    i want to put the 500.2 amp

    http://kicker.com/ShowPage.cfm?filen...ml&menu=KXAMPS

    on a couple of these 12"s

    http://kicker.com/ShowPage.cfm?filen...enu=SUBWOOFERS

    how do i do this w/out messing up the ammount of ohms and frying voice coils like all of my crap 12"s i've blown?????????
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  2. #2
    Variable Bitrate
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    Match the impedence. Amp is 2 Ohm, so get 2 Ohm speakers and connect the wires to the terminals labeled 2 Ohms. (looks like the 12"ers you mention are dual Ohm capable)

  3. #3
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    not quite... depending on how you are wiring the drivers to the amp (series,parallel), you need to calculate the total impedance, and make sure the amp can drive whatever load you have, and do so with enough power.

    The drivers seem to be 400W, with either 2 ohm or 4 ohm impedance. They're dual voice coil, and it seems they recommend always connecting both coils.

    Now, let's say you have the 4 ohm varity. Connect the voicecoils in series, which gives you 8 ohms. Then wire the two drivers in parallel (4 ohms) to the amp.

    The 500.2 outputs 500W @ 4 ohms bridged, which isn't quite enough power to drive the two subs to their fullest potential. Not necessarily a problem, as long as you don't drive them so hard you start to get distortion, which will destroy the drivers. It's actually a good idea to overrate the power ratings a bit, to have the extra headroom before distortion.

    Now, this is all from memory, and not all the info may be 100% correct, but has hopefully answered your question. The ratings of the amplifier @ different impedances tells you how much power the amp can deliver at those levels.

  4. #4
    Low Bitrate acornstu's Avatar
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    yeah

    Quote Originally Posted by SupaDave
    not quite... depending on how you are wiring the drivers to the amp (series,parallel), you need to calculate the total impedance, and make sure the amp can drive whatever load you have, and do so with enough power.

    The drivers seem to be 400W, with either 2 ohm or 4 ohm impedance. They're dual voice coil, and it seems they recommend always connecting both coils.

    Now, let's say you have the 4 ohm varity. Connect the voicecoils in series, which gives you 8 ohms. Then wire the two drivers in parallel (4 ohms) to the amp.

    The 500.2 outputs 500W @ 4 ohms bridged, which isn't quite enough power to drive the two subs to their fullest potential. Not necessarily a problem, as long as you don't drive them so hard you start to get distortion, which will destroy the drivers. It's actually a good idea to overrate the power ratings a bit, to have the extra headroom before distortion.

    Now, this is all from memory, and not all the info may be 100% correct, but has hopefully answered your question. The ratings of the amplifier @ different impedances tells you how much power the amp can deliver at those levels.

    you guys have been a big help and someone just emailed me a link to the kicker site where there are wiring diagrams, i'm not really this dumb but i have blown 4 amps and 13 subs of various brands (mostly of wich were legacy sadly, 6 at once to man!) but, i've calmed down and grown up and learned that you get what you pay for and research pays
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  5. #5
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    Kicker's KX600.1 is the same price, puts out 600w @ 2ohm, class D, and has a subsonic filter.

    2 x 2ohm DVC @ 2ohm:




    Just another option for ya to think about

  6. #6
    Maximum Bitrate carabuser's Avatar
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    allrite, I have those CVRs right now... looking at the kicker's diagram it looks like if you take two woofers wired in series (4ohm DVC, giving you 8 ohm in series) and hook them up to the amp in parallel you'll get 4 ohm. Also, if you take those woofers and wire them in parallel (4ohm DVC giving you 2 ohm in parallel) and then hook them up to the amp in series, it'll give the same effect - 4 ohm.
    anyway, once you do that let us know how they sound. Right now my CVRs are wired in parallel at 2 ohm and are powered by a performance teknique amp (i'm underpowering them badly) but they still bump pretty hard! i wanna get that 600.1 kicker amp.
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  7. #7
    Maximum Bitrate carabuser's Avatar
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    just checked the specs of KX600.1. not enough.
    instead I think JBL 1200.1 should be fine for this one. It's a little more than 400 @ 4 ohm, but as SupaDave said "It's actually a good idea to overrate the power ratings a bit, to have the extra headroom before distortion." So I think it should be enough, plus the amp isnt that expensive.
    Good luck!
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  8. #8
    Low Bitrate acornstu's Avatar
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    k

    Quote Originally Posted by Jizzler
    Kicker's KX600.1 is the same price, puts out 600w @ 2ohm, class D, and has a subsonic filter.

    2 x 2ohm DVC @ 2ohm:




    Just another option for ya to think about

    thanks, i think i got it now
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