ZachG Posted July 16, 2012 Report Posted July 16, 2012 Ok so I got my 98 grand prix gtp with the 6 speaker system with 12 disc cd changer. I heard that the stock wiring for the amp and the 6x9 that all it puts out through the 6x9 is all low end bass. So if anyone know that's true or not I should just make the hole a little bigger and get a crescendo 8" midbass in there? 1998 Pontiac grand prix gtp supercharged2 12" Obsidain Audio V.1 on a 2011 zx1500.1 at 2 ohms. 20ft of Knuconceptz CCA 0 Guage. 2nd Battery is a Shurken BT-120. Box is 3.5cu tuned at 31.8hz sealed off from the trunk. 14sqft of Dynamat on the Rear deck top & bottom. Soon to be more for doors/roof. Gets low & loud Did a 140.5 Sealed at Battle of the boom in June 2013 dropping to 12.7v (need a alt mines going bad)
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