Johnathon Gettys Posted May 15, 2015 Report Posted May 15, 2015 I got 2 15 dd 500 series dual 4 on a 1000 rockford fosgate . Need a box design its going in a 2005 trailblazer i want it tuned to 32 hertz . Plzz help me thank u
Joe X Posted May 15, 2015 Report Posted May 15, 2015 DD recommends no lower than a 35Hz tuning for their subs.
Joe X Posted May 16, 2015 Report Posted May 16, 2015 Here is a suggestion, please verify the suggested dimensions before considering building, power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 6 5/8", figure is just an assembly guide:
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