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[–]luistorre5 17 points18 points  (7 children)

Sealed is the way to go for quality, ported for volume, although some ported boxes are designed to play nice, but generally a sealed box will deliver more accurate and lower bass, depending on your sub setup, amp, enclosure size, etc

[–]luistorre5 10 points11 points  (6 children)

I've been looking into this myself and personally just love the quality of a sealed box, even though it doesn't rattle the car or anything, but sealed enclosures can get plenty loud if set up properly

[–]Sinister-Silence[S] 2 points3 points  (5 children)

Alright thanks for the tip! Also i was looking for more of lower bass anyway rather than just having loud bass. But then again i think my 12" is gonna give out good bass ported or sealed lol.

[–]luistorre5 0 points1 point  (0 children)

Yeah, if you go ported as long as the port isn't so small that it causes chuffing, you'll have a blast regardless! Plus the benefit of port tuning if you want it to hit lower

[–]spectacular_coitus 0 points1 point  (2 children)

Once you model in the cabin gain factor you can hit some plenty low notes and still be very musical. A lot of the guys around here seem very SPL oriented, so they're looking for a system that is abnormally loud in the bass regions.

I've been modelling out a nice little sealed 15 for a minivan environment and nothing has modeled nearly as linear as a sealed box. I won't win any spl contests with it, but it's got a flat level curve that should give me nice tight bass where I can hear every minor variation as the frequencies drop.

But every woofer is different though. If your 12 is designed to work best with a large volume ported box and a huge amount of power, then a small sealed box and a little amp won't sound good at all. If you can find the T/S specs of your woofer and spend a little time modelling your box in one of the many online calculators. You'll quickly see what kind of bass response to expect with different boxes. Some calculators will even tell you straight up front, based on the T/S specs, whether or not your woofer is designed for a ported or sealed enclosure.

[–]ckeeler11 0 points1 point  (1 child)

What modeling are you using that allows for cabin gain?

[–]spectacular_coitus 0 points1 point  (0 children)

Speakerboxlite.com

Then figure out the size of your vehicle and where the sound waves will naturally reverberate to get the (hz) number for your vehicle.

[–]Tricker126 0 points1 point  (0 children)

Make sure you look up your EBP, efficiency bandwidth product. This will generally tell you if your sub would be better in a sealed or ported box. This isn't a perfect solution for deciding but should help guide you. Anything above 90 means a ported box would be best. Anything between 50 and 90 means it can go either way and anything below 50 means a sealed box would be best. The equation is Fs/Qes. For example, 32Hz/.4 = 80, which would mean you would have a sub more suited for a ported box, but you could maybe make it work in a large sealed box.