anyone know if this would work? the gap between the subs is 9" each box is 5.5 cubic foot @ 33 hrtz

 

if you are going to go with a design like that why not make a bandpass? either 4th or 6th?

 

i have no clue how to design or tune one.. thats what i was going to do is a 4th order but then i added the ports on the sides insted of doing it cause i know it would fail

 

4 15's no port

 

this is a 4th order basically but it needs to be tuned..

 

how would i tune it?

 

build it to the specs needed.. don't know what space you are working with..
the front wall would need to come across the opening a little on each side to make a compression chamber.. I know very little about bandpasses.. i know whats what.. but not exactly how its measured out.. ask here or on Ca.com.. you might need to know your subs and the tuning freq you would like first..

 

well im working with 41 wide going to do it 35.5 tall and 28.75 deep going to do 4 power acoustic mofo 15's and i want it low ( 28 - 30 hrtz )

 

so something like this?

 

off set the speakers from each other..we did a box like this WAYYYY back in the day for PowerPig 93.3