I have a 12" sealed subwoofer in my trunk and it hits pretty hard, but I don't feel it as much as I did in my old SUV. I know that I won't be able to reach the same level of air movement that I had in my SUV, but I'd like to try and improve the the air movement as much as possible.
I've thought about switching to a ported box, but would that make much of a difference or are there other modifications I could make to my car to improve the air movement from my sub?
depends on the sub, not all sub work in ported boxes
first tell us what amp you have? what sub you have? what size box you have at moment/thickness of wood? how much space are you willing to give up/have to use? what car do you have?
once we no all of this we can help if you want louder yes ported in most situations is louder but have you considered a 4th order or 6th order ported through rear parcel shelf into cabin? this will be the loudest by far as all of the air movement will be in the cabin and not the trunk
what amp you have? JL Audio 250W mono what sub you have? Memphis Car Audio 12" what size box you have at moment/thickness of wood? I don't know the thickness, but the box is 13x13x13 inches how much space are you willing to give up/have to use? I'm willing to give up any amount of space that I have to in the trunk. what car do you have? I have a 2005 4-door Nissan Sentra
What's a 4th order or 6th order ported through rear parcel shelf?
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Switching to a ported box will get you louder but you cant expect that much out of a single 12" on 250w. If you want to keep the equipment you have then go ported,thats about the only thing you can do to get louder with what you have. You could always upgrade your sub/amp or get another 12" the same as the one you have. But I would recommend you get a bigger amp and a beefier sub(s). If you want to upgrade post your budget and someone on here can give you some options for getting louder. And switching from an SUV to a trunk will definitely change to sound/loudness of your system. Like I said try a ported box built to your subs specs for a quick fix and you could ride with your back seats folded down,if they do fold down,and actually Ive noticed in trunk cars if you remove your rear speakers it allows a little air to move in to your car and will make it sound a tad louder. But I would recommend just upgrading your system to get louder.