RE Enclosure calculator

[jellyfish420 10+ year member]

Well now that I understand all of this I can say that I know the calculator was correct, however, it was not an enclosure that would do what i wanted to. I may need a larger box tuned lower.

you do understand that making a bigger box and tuning lower will not (to a degree) change where your vehicle peaks at. there is a certain range that your vehicle will peak at due to the shape and size of your vehicle. for example say your truck peaks in the 50's. w/ a 34hz box you peak at 54hz. so you go to a 27hz box and peak at 51hz. (these are completly made up numbers by the way) you will gain more lower end, but the respone of the cabin will still be the same.....unless you wall it, but then you change the size of the cabin. smaller cabin, easier to pressurize //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[IgnoreMe 5,000+ posts]

you do understand that making a bigger box and tuning lower will not (to a degree) change where your vehicle peaks at. there is a certain range that your vehicle will peak at due to the shape and size of your vehicle. for example say your truck peaks in the 50's. w/ a 34hz box you peak at 54hz. so you go to a 27hz box and peak at 51hz. (these are completly made up numbers by the way) you will gain more lower end, but the respone of the cabin will still be the same.....unless you wall it, but then you change the size of the cabin. smaller cabin, easier to pressurize //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

thank you. explained it much better than i would have

 

[BJ The Man 10+ year member]

you do understand that making a bigger box and tuning lower will not (to a degree) change where your vehicle peaks at. there is a certain range that your vehicle will peak at due to the shape and size of your vehicle. for example say your truck peaks in the 50's. w/ a 34hz box you peak at 54hz. so you go to a 27hz box and peak at 51hz. (these are completly made up numbers by the way) you will gain more lower end, but the respone of the cabin will still be the same.....unless you wall it, but then you change the size of the cabin. smaller cabin, easier to pressurize //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Ohhhh. So, I have a jeep liberty. If i took up the whole hatch with my box(even with back seat, touches sides of interior, and is about 3-4 inches from the back hatch) then that would create less total airspace in the cabin. Thia would make it easier to pressurize hence better low frequency extension.

I think thats about right. I'll be getting my 15'' SSD in the next week or two and will give it about 3.5 cubes at 33Hz. This would take up most of the back area and also its a much higher end sub then the Type E.

Does that sound about right?