Marco
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Posts posted by Marco
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On 8/11/2020 at 12:37 PM, 1point21gigawatts said:
You are gonna have to buy marine grade plywood because even if you bedliner spray it it would still get damaged by the weather. Do a 3:1 ratio and 16 square inches of port area per cubic foot. So if the ported section is 3 cubic feet the multiply 16 square inches by 3 cubic foot which would equal 48 square inches of port area. Make the port as close to a square as you can. Not a slot. And make sure wherever the subwoofer is mounted that you factor in the subwoofer displacement. Say the subwoofer is .1 cubic feet of displacement and the section the magnet is gonna be facing needs to be 1 cubic foot, then you add in that .1 cubic foot subwoofer displacement and whatever bracing displacements, let’s say it’s .03 cubic feet, and it would equal 1.13 cubic feet and that’s what that section has to measure to net 1 cubic foot.
Does using a slot vs a square port make a big difference now that you say it i always see people do more squared ports on 4th orders but i thought it was just a personal preference.
Help with 10" sdr 4th order
in SKAR AUDIO - (READ ONLY ARCHIVE)
Posted
Its going in a 17 malibu building a trunk wall, the plan is 2 skar svrs 12” on a massive n3 amp thats the end goal. Im ordering one sub at a time so i want to try the 4th for it never even seen one in person so it will help me decide wether to do a ported or 4th for the two subs once i get them. The single 12” is gonna be powered by a power acoustik 1500d ( i know not the best of amp but its a budget build so im using what i have.) i have a design in mind 2:1 ratio tuned to 50hz. Im not trying to win competitions so bandwidth over spl for me