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Reload Thread: Can I run 2000 watts on the stock 120 AMP ALT?

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    Can I run 2000 watts on the stock 120 AMP ALT?

    Hey guys I'm new here and I have a couple questions. Can I run a 2000 watt Hifonics Brutus amp without a HO ALT? If so, a extra XS Power battery and the big three would be completely necessary right? I would rather not purchase a HO alternator. Additional info- 120 Amp stock ALT and im having current (pun) light dimming issues with my 930 watt kicker amp with my completely stock electrical system (no extra battery or big three upgrade) This is a 2001 GTI Golf hatchback.
    Please reply I would really appreciate it. I'm one to spend hours researching before asking a question.







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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Is your battery stock? If so that could be the cause of the dimming, that or you're clipping the hell out of the signal causing massive voltage drops.

    But for your question, theoretically with the Big 3, an upgraded battery upfront and an extra in the back you could run it. You'll still very likely see voltage drops, but shouldn't be incredibly dangerous. I just wouldn't play it too much at full tilt while idle.



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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    I appreciate your input Fatboytyler. My battery is in fact stock. I think I'll keep a volt gauge up front to keep an eye on it and get used to the drops and rises in volts. I will also make sure to be careful while at idle showing my system off




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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    You are welcome. I am certainly no genius on the matter, hopefully someone with more knowledge will input. I know my 100Amp Alternator handles a little over 800W without any voltage drop. I don't have the Big 3, but I do have a large lead acid upfront.

    But yes, certainly perform a battery upgrade and the Big 3 and monitor the voltages!



    Bought From: mylows10, michaellane, Tantricz
    Sold To: bradl79

    Vehicle: 2000 Toyota Tundra (243,000+ Miles)
    HU: JVC KW-500
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    Subs: 2 SA-12s in 4 Cubes @ 32 Hz
    Front Stage: CDT Audio -- ES-6iM (Mids), TW-125 (Tweets), EX-530 (X-Over)
    Alt: Singer 275 Amp (Clamped 284+ Amps)

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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Step one.replace stock battery with biggest AGM battery possible.any AGM will be better than stock battery.step two.big three.step three.see what happens




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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    I've run 2500 on my stock alt before with regular big bat up front and a kinetic 2400 in back and never had a problem. but every car acts different.



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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Quote Originally Posted by 2Dcore View Post
    I've run 2500 on my stock alt before with regular big bat up front and a kinetic 2400 in back and never had a problem. but every car acts different.
    me too.... lol




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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    It's really dependant on every car. Some can handle it some can't But the big 3 and a better battery is a start




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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Quote Originally Posted by basswiigee View Post
    me too.... lol
    Wouldn't happen to be a kx2500? Lol



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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Quote Originally Posted by 2Dcore View Post
    Wouldn't happen to be a kx2500? Lol
    you know how we do!!!!




    H.U. - Pioneer P7200HD
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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Thank you 2D for your input it is much appreciated. Ill tell you guys how it goes.




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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Go ahead and do your due diligence with the big 3. See how it reacts then and if poorly, step up with an AGM batt. I have a Duralast Gold lead acid batt in my cherokee on a stock alt and it is somehow powering a JBL GTO24001 pretty well.



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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Another vote for a good battery up front and an additional near the amp(s). That's always been good for me for that power level.




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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    Hell I ran a kx2500.1 at 1ohm with a 100amp alt 4gauge wiring 1 group 27 factory batt and 1 120ah agm in the back and I only had slight dimming but I couldnt run It for long at idle or my voltage would drop dangerously



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    Re: Can I run 2000 watts on the stock 120 AMP ALT?

    well, aint no point in upgrading the battery if the alternator cant supply a proper amount of current to it when its called on for it by the amplifier. I see many people always urging those to "buy a big AGM battery" when you really should invest in a alternator made by a reputable company. I have had my DC alt 270xp for 4 years now... love it. Stock wet cell battery, no voltage drop in my current setup.

    Clifs. Buy an alt, better ROI (return on investment)




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