do I need an extra battery?

[stevemachine17]

Hi, been reading a lot, but am now ready to make a move. I've got a set of polk component speakers up front that are rated 100w RMS. The amp I have for them is rated at 125x2 RMS (4 ohms, 760w max). I also have 3x10" subs I got from a family member, which will be powered by a 460x1 RMS amplifier (1000w max).

Will I need a 2nd battery to install this?

My car is a 2003 honda civic si, electrical system is currently stock, and I have a sony headunit installed at the moment. I may also change up the subs, and make a box for a single or dual, rather than a triple, since I need some trunk space.

Thanks

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[subzero 5,000+ posts]

I dont think so, however, you have three 10inch subs and one 450watt amp. What is the 10inch sub model and power rating? WHat amp are you using? Do you know the ohm load on the amp?

 

[stevemachine17]

This is a link to the amplifier I am using Kenwood KAC-929 150W x 2 Car Amplifier at Crutchfield.com

Unfortunately, I am clueless about the subwoofer specs, all I know is that they are JL Audio, and they are probably about 8 years old. I figured the 3x10"s may be underpowered, which is also a contributing factor for me making a dual setup, or possibly even just a single sub.

Thanks for the help