i have a speaker box that is 1.3 cu. ft. before anything was installed in it. so i plugged the big hole i cut in the top of my box. So now I put an aero? port in.Its 3" in diameter and the guy i bought it from said to make it about 5.75" long. Just wondering if that sounds right to yall. its a 12" sub in the box. the sub is rated at 35 fz or fhz something like that.
that just does not seem right to me. it sounds like the box would be tuned to to the high 40's when you are probably going to want something in the mid 30's. what is the subwoofer that you are using and could i see a picture of what you have done to the box?
this woofer has me scratching my head with the enclosure sizes that autotek recommends. regardless you would want to build a box to be about 2.15 cubic feet before port and driver displacement. the port would remain 5.75 inches and the box would be tunes to 37 hz.
if you have space limitations you might want to consider making sealed boxes for the new subs that you are getting. that would be your best option.
what do you mean by getting a box that you could use different subs in? you mean like take one sub out of the box and put in a different sub in the same box? it is possible that it could work but its also possible that the two subs would need different box sizes and tuning frequencies. i would say just stick with using one sub.
as for making what you have be at least in the ballpark, im not so sure that is going to work. generally manufactures recommend smaller box sizes for a sealed box compared to a ported box but for the sub that you have the sealed box recommendation is also 2 cubic feet. it looks like your box is too small either way.
They seemed to sound a little different when the boxes were sealed .Looks like i screwed them up again.Looks like ill just have to get some bigger enclosure's.
this isn't as fun when it actually costs me money. Most of my system has been free.
