My first sketchup attempt, 4 MMATS 12" 4th order bandpass

[Trevor28139]

this should be tuned to 47hz.....26539072

[Trevor28139]

that tiny picture is hard to view....http://uniqueadvertisingsolutions.com/images/box%20design%204th%20order%201.jpg
http://uniqueadvertisingsolutions.com/images/box%20design%204th%20order%202.jpg

[Trevor28139]

for those who play with sketchup you can download the actual file here http://uniqueadvertisingsolutions.com/images/4th order bandpass.skp

[Kangaroux]

Looks good. Though if you can get that port any higher that would help quite a bit.

[garretttt4]

Why are u tuning so high? I don't know much about 4th orders so.....

[mylows10]

you need the tuning high on the ported section because the sealed section will take care of the low end ,this way you'll get a wide range of frequencies that the box can and will play .

[Trevor28139]

with 4th orders the vented section handles the high freq and the sealed handles the low end.

I know it might sound better with vent moved higher but i wanted to look of being able to see the subs through the vent. Is there an audible difference in sound?

[T.I.K.]

Question for you guys, do fourth orders have better or worse low end response than a regular ported box?

[West]

Hmmm I may want to try a 4th order box if I ever get a car with some trunk space...

[Trevor28139]

West, you are SQ guy so it might be ideal for you, to be play 25-50hz accurately would be awesome.....thats what im hoping for anyways....

[cyn]

Question for you guys, do fourth orders have better or worse low end response than a regular ported box?

every 4th order i've had has murdered the low end notes... I've yet to have a ported box hit the lows like a 4th order...

[Trevor28139]

if i do this correctly I should have the ability to step up from the 4 12's when i get bored with them to 8 12's with minimal work.
http://www.uniqueadvertisingsolutions.com/images/4th%20order%20bandpass.jpg