Yes. Depending on box size, power, and environment. A tunning difference of 2hz would be noticable. More so to a trained ear.
you could gain/loose up to (but not limited to) 2db of output between the 2 tunnings.
Remember in a ported box, you will get a peak in output @ the tunning frequency.
^ what he said //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif except the peak part, you do not peak where your box is tuned to...
Ya, ^^^ people also told ME that you peak where it's tuned to, so i tuned the box for my L7's to 42hz, and it sounds like crap.
I wish people would make sure they know things for sure before they post //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif