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

[Trevor28139 10+ year member]

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

Click to read more...

 

[Trevor28139 10+ year member]

that tiny picture is hard to view....

 

[Trevor28139 10+ year member]

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

 

[Kangaroux 5,000+ posts]

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

 

[garretttt4 10+ year member]

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

 

[mylows10 5,000+ posts]

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 10+ year member]

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. 10+ year member]

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 10+ year member]

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 10+ year member]

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 10+ year member]

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.