installing multiple subwoofers in cars?

ok so i would like to put maybe three subs in the back of my car what kind of amplifier will i need 2 channel?

It depends on the voice coils (number of, and also the ohm rating.) Use this link to help match subs to an amp: http://www.crutchfield.com/S-C7zchogrnrV/Learn/learningcenter/car/subwoofers_wiring.html

Car Audio : How to Install Subwoofers in a Car

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