Battery Power for audio question
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This is a discussion on Battery Power for audio question within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; I will be installing an amp and some subs and am wondering if the battery/alternator would need any upgrading for ...

  1. #1
    Registered User NdN Ninja's Avatar
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    Battery Power for audio question

    I will be installing an amp and some subs and am wondering if the battery/alternator would need any upgrading for sufficient power.

    This is the amp I will be using
    -- Power Acoustik 1920 Watt Plasma Sphere --> Link

    I'm at work now and couldn't find the exact model of the subs but I know they run around 500w-600w rms each. Will the stock battery/alternator be stable so my lights won't flicker?

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    Registered User jeffmm06's Avatar
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    any way you cut it, your lights may flicker a bit, more or less your head unit. I would give it a shot and see what happens, you may need to get a capacitor if it doesnt hold up to it.
    2005 WRB WRX "was" STAGE 2

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    Registered User teflon_jones's Avatar
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    You should be fine when the car's running, but just make sure you don't leave the stereo on with the car off unless you like getting a dead battery.
    Scott
    Past Subies - '11 STI Limited stage 1+ and '04 STi stage 2+
    '13 Wrangler Rubicon - custom front bumper w/12k lb winch & off-road lights, skid plates, diff guards, etc.
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    '77 F-150 heavily modded for off-roading

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    Registered User NdN Ninja's Avatar
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    ^ is that even possible? In my last car when I turned it off all the other stuff turned off as well...

    Quote Originally Posted by jeffmm06
    any way you cut it, your lights may flicker a bit, more or less your head unit. I would give it a shot and see what happens, you may need to get a capacitor if it doesnt hold up to it.
    What capacitor would you recomend if I find out I need it?

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    Quote Originally Posted by NdN Ninja View Post
    ^ is that even possible? In my last car when I turned it off all the other stuff turned off as well...



    What capacitor would you recomend if I find out I need it?
    The general recomendation is 1farad or more per 1000watts rms.

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