View Full Version : question about optimal tuning for 12" Fi Q

02-24-2008, 11:25 PM
ok so ive built a couple of sealed boxes before but i think i want to try to go ported this time.

Fi's site recommends 28-33hz so i was wondering what the best frequency for sq is because i have been reading that if you tune and build the box right you can get a ported to sound just as good as sealed while still being decently loud.

I was thinking 31hz or so, a medium, but im not sure what changing the frequency will do? also i will be running a kicker zx1000.1 is a chevy s10 extended cab so i want to keep it at 2 to 2.25 cu ft max if possible.

thanks for any info

02-25-2008, 12:08 AM
The best frequency for SQ is sealed.

In most cases, in order to produce an at least somewhat flat (sonically accurate) frequency response in a car with a ported box, you would want to make the box slightly smaller than suggested and tune much lower, like 24-28hz.

If you don't care about accurate musical reproduction, then people will probably tell you to tune around 30 hz. But this still creates a huge peak at that frequency meaning the bass reproduction is no longer accurate.

02-25-2008, 12:15 AM
yea im not looking for like amazing sq just something that sounds pretty good but will still get loud, i guess im leaning to spl rather than sq so would a tuning of 30hz be ok or should i go with 29 or 28

02-25-2008, 12:16 AM
30 imo

02-25-2008, 01:36 PM
I built a vented box for my 15" Q @ 32Hz a couple months ago and i didnt care for it. I sealed the port this weekend and it sounds much better. Just a thought, im sure it would have sounded better if it was tuned lower

02-25-2008, 01:39 PM
i didnt really like my Q 12 sealed, but thats me. mine was tuned to 31 when I ported it and it sounded good. Not as flat as sealed, but not boomy either. I would shoot for 30