when to get a capacitor?

I was planning on installing a 440 watt amp(http://www.crutchfield.com/S-kiQ1OJ7o24E/cgi-bin/ProdView.asp?g=120&I=108R5761A ). Do I need a capacitor for this? I have an 2005 Accord VP.
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amp(http://www.crutchfield.com/S-kiQ1OJ7o24E/cgi-bin/ProdView.asp?g 0&I8R5761A).
Unlikely.
You can tell if the vehicles lights dim with transient surges (usually bass hits). When that happens it means the amp is doing a large sudden draw, robbing power from other systems. That is what a capacitor is there to help with.
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Thanks. That was a fast response.
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Call Crutchfield tech support. You can get a more reliable answer than on an open forum.

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