08 Silverado 12 Inch Subwoofer Box Do I Need A Second Battery For 2 12" Subwoofers?

Do I need a second battery for 2 12" subwoofers? - 08 silverado 12 inch subwoofer box

I have driven 2 12 "Kicker CVT Surface Mount submarines by a Soundstream amp 1600W. It's my first game for my 08 and Silverado do not know if ill need an extra battery. Any suggestions?