Port area Question.

[vice24 0]

Im in the process of designing a box for one Fi Q 15 and I have a couple quick questions.

If went over the 12-16 square inches of vent area per cubic foot of volume would this affect the sound Quality? I was just curious because I have seen a few enclosures that definatly go over this and sound amazing. I am going for more sound quality vs. SPL but want to get the most out of my subs.

Also I am planning on tuning the box to 32 hz, that was the recomended optimal freq. for the 12" Q but does this also apply to the 15" Q? Any help would be really appreciated.

Thanks in advance, Zach

[Fi Car Audio 64]

Most at Fi like to tune a little deeper for daily... recommending 28-33. 33 becomes the standard tuning for most people as it blends output and depther fairly well with the Q12 and 15 (for most customers liking). Going over on the port sizing isnt an issue (unless it is radically over and then other problems present themselves)

4 cuft at 32 Hz is solid for daily. You can trade a little less port area (still maintaing the recommended 12-16 sqin per cuft) for a little more box volume. If you are running upto about 1200W to the Q, having a little more volume is only going to help extension and efficiency.