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    Sundown sa-12

    I'm getting 2 sundown sa12's and I'm pretty sure I want an alpine mrx 240 at two ohms to power them. My question is should I get the 2 ohm or 4 ohm subs and why? I don't know much about ohms and all that jazz so keep that in mind please and thanks







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    Re: Sundown sa-12

    With the alpine mrx-m240, you should get the SA d2s. The subs can be wired to a 2ohm load and the Alpine makes its most power at 2ohms(2,400). You can get the d4s, but you will only get 1500 watts from the amp.




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    Re: Sundown sa-12




    Pioneer Premier DEH-600UB
    RF T1675-s Comps
    RF PPS4-8 PRO
    PPI Bk800.4
    SSA ZCON 12
    ZX2500.1

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    Re: Sundown sa-12

    Go with the 2 Ohm DVC. This way you can wire them together to achieve a 2 ohm load, or wire them each at 4 ohm and parallel it at the amp for a 2 ohm load.

    With that combination I would certainly keep an eye on them in the beginning at 1200W RMS a piece. After a little bit (few hours of playing) you should be fine. I managed to get mine a bit stinky on 650 a piece real early on.



    Bought From: mylows10(2), michaellane
    Sold To:
    Traded With:

    Big 3: 1/0 OFC of Sky High
    HU: JVC KW-500
    Amp: RF R1200-1D (Roughly 650 into each sub)... 2000-2500W soon...
    Subs: 2 SA-12s in 4 Cubes @ 32 Hz (Designed by Buck, built by me)
    Speakers: Factory JBL System... CDT MX-261 on an AB SQ945 soon
    Wiring: Knu KCA (CCA) 4 Gauge... 1/0 OFC Sky High soon

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    Re: Sundown sa-12

    Ok thanks! I am a little worried about over powering them but I've herd they can take it. I'm going to be using them daily should I be concerned about blowing them?




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    Re: Sundown sa-12

    Quote Originally Posted by roadrunner12234 View Post
    Ok thanks! I am a little worried about over powering them but I've herd they can take it. I'm going to be using them daily should I be concerned about blowing them?
    Like I said, just keep an eye on them in the beginning. If they get stinky then back off and let them cool off. Once they get loosened up a bit they should take 1200 all day long without issue. Just make sure you have good clean power.



    Bought From: mylows10(2), michaellane
    Sold To:
    Traded With:

    Big 3: 1/0 OFC of Sky High
    HU: JVC KW-500
    Amp: RF R1200-1D (Roughly 650 into each sub)... 2000-2500W soon...
    Subs: 2 SA-12s in 4 Cubes @ 32 Hz (Designed by Buck, built by me)
    Speakers: Factory JBL System... CDT MX-261 on an AB SQ945 soon
    Wiring: Knu KCA (CCA) 4 Gauge... 1/0 OFC Sky High soon

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    Re: Sundown sa-12

    Ok thanks!




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    Re: Sundown sa-12

    Quote Originally Posted by fatboytyler View Post
    Like I said, just keep an eye on them in the beginning. If they get stinky then back off and let them cool off. Once they get loosened up a bit they should take 1200 all day long without issue. Just make sure you have good clean power.
    you might wanna explain "good clean power" to him if he doesnt know what ohms are




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    Re: Sundown sa-12

    Quote Originally Posted by Nutdawg651 View Post
    you might wanna explain "good clean power" to him if he doesnt know what ohms are
    True.

    OP: If you didn't understand what I meant by clean power, I mean make sure you set your gain properly so that you aren't clipping (Flattening of the top of the sound wave) the signal to your amp. There are multiple tutorials on here and the web on how to properly set your gain.



    Bought From: mylows10(2), michaellane
    Sold To:
    Traded With:

    Big 3: 1/0 OFC of Sky High
    HU: JVC KW-500
    Amp: RF R1200-1D (Roughly 650 into each sub)... 2000-2500W soon...
    Subs: 2 SA-12s in 4 Cubes @ 32 Hz (Designed by Buck, built by me)
    Speakers: Factory JBL System... CDT MX-261 on an AB SQ945 soon
    Wiring: Knu KCA (CCA) 4 Gauge... 1/0 OFC Sky High soon

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    Re: Sundown sa-12

    Honestly I was planning on taking it somewhere to tune the amp and poobably do the installation




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    Re: Sundown sa-12

    Quote Originally Posted by roadrunner12234 View Post
    Honestly I was planning on taking it somewhere to tune the amp and poobably do the installation
    its more to it than that , if you dont have the correct electrical system to back your amplifiers needs you will be in trouble from heat and coils dont like heat




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    Re: Sundown sa-12

    ^^^True story. To run that Alpine you are going to need some electrical upgrades. At least the Big 3, 0 gauge wire (multiple runs), and at least a couple good batteries. Possibly an upgraded high output alternator depending on what your stock alt puts out. 2400 rms is a lot of watts for someone just starting out. Why don't you get something a little smaller and easier to put together till you get the hang of things. Someone that doesn't even know ohm's law has no business running that much wattage. Sorry... Just my opinion.




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    Re: Sundown sa-12

    And I respect that, I planned on doing the 0 gauge and big 3, and also getting anoth battery. I didn't think a new alt was nesessary. And in my defense o need to learn somehow. If you don't mind me asking what do you mean by multiple runs?




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    Re: Sundown sa-12

    Quote Originally Posted by roadrunner12234 View Post
    And I respect that, I planned on doing the 0 gauge and big 3, and also getting anoth battery. I didn't think a new alt was nesessary. And in my defense o need to learn somehow. If you don't mind me asking what do you mean by multiple runs?
    What vehicle do you have? ANd is it a stock alternator? If its stock, I can almost guarantee it won't run 2400 Watts RMS regardless of batteries.

    Multiple Runs: Amount of Pos/Neg runs from the front battery to the rear battery(ies).

    I would highly, highly suggest doing more research first. Not trying to dog you or anything, but most people don't realize the amount of work and money goes into a proper high power system.



    Bought From: mylows10(2), michaellane
    Sold To:
    Traded With:

    Big 3: 1/0 OFC of Sky High
    HU: JVC KW-500
    Amp: RF R1200-1D (Roughly 650 into each sub)... 2000-2500W soon...
    Subs: 2 SA-12s in 4 Cubes @ 32 Hz (Designed by Buck, built by me)
    Speakers: Factory JBL System... CDT MX-261 on an AB SQ945 soon
    Wiring: Knu KCA (CCA) 4 Gauge... 1/0 OFC Sky High soon

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    Re: Sundown sa-12

    Quote Originally Posted by fatboytyler View Post
    What vehicle do you have? ANd is it a stock alternator? If its stock, I can almost guarantee it won't run 2400 Watts RMS regardless of batteries.

    Multiple Runs: Amount of Pos/Neg runs from the front battery to the rear battery(ies).

    I would highly, highly suggest doing more research first. Not trying to dog you or anything, but most people don't realize the amount of work and money goes into a proper high power system.
    All that work is why I'm "that guy" running 4 gauge and trying to get at loud as possible with under 2,000 watts.:P



    Quote Originally Posted by Truman View Post
    I'm not saying my car is stupid loud cuz its not but I heard a solo x system and it made the air frequencies shake the whole car the side panels were even breathing back and forth. I'm not trying to start a huge fight but everyone is such a ****. Until you've heard the squares air don't say its not good
    Quote Originally Posted by Truman View Post
    Has nothing to with it. Squares make air frequencies travel farther that's the fact. ******* Google it. You just made yourself look like an idiot on a public forum.

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