ive been working on my box for a sa 15 lately and i was wondering if 3.5ft3 tuned to 35hz works or if some variations are recommended. i want the sub be tuned fairly low like 29 hz, but that might be too low for the driver. also is there is a reccomended port area for the sub. ive been drawing it all up and messing with the RE box calculator, has anyone else had any luck with this prgramm is it accurate?
any input is needed thanks