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View Full Version : My first sketchup attempt, 4 MMATS 12" 4th order bandpass



Trevor28139
01-12-2013, 11:18 PM
this should be tuned to 47hz.....26539072

Trevor28139
01-12-2013, 11:22 PM
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
01-12-2013, 11:24 PM
for those who play with sketchup you can download the actual file here http://uniqueadvertisingsolutions.com/images/4th order bandpass.skp

Kangaroux
01-12-2013, 11:38 PM
Looks good. Though if you can get that port any higher that would help quite a bit.

garretttt4
01-12-2013, 11:43 PM
Why are u tuning so high? I don't know much about 4th orders so.....

mylows10
01-12-2013, 11:50 PM
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
01-12-2013, 11:58 PM
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.
01-13-2013, 12:02 AM
Question for you guys, do fourth orders have better or worse low end response than a regular ported box?

West
01-13-2013, 12:03 AM
Hmmm I may want to try a 4th order box if I ever get a car with some trunk space...

Trevor28139
01-13-2013, 12:12 AM
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
01-13-2013, 12:54 AM
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
01-13-2013, 02:37 AM
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