Here is the scenario
4 Alpine type r dual 2 on and Opti 6000d
Alpine recommends an f3 of 29hz and an FB of 35hz with port area of 50 in^2 and port volume of .93 ft^3
in order to meet their criteria, this is what I had to do.
Alpine recommends 50 sq^2 but i am at 100 sq^2 inches but not the typical 13-16 sq^2 per cubic foot. If I go bigger port is to long
Port velocity is 27.6 m/s
So in a nut shell if you are putting max power to the subs un-clipped port velocity should be good as long as it is below 34 m/s correct?
I ask because if I add more volume to the box while over powering then I hurt the suspension of the woofer so I need a happy medium so to say.
2003 Mercury Mountaineer
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