Leaderboard

So here is a second suggestion, power: to sub rated, amp subsonic filter to 28Hz, minimum port clearance 9 cm, figure is just an assembly guide: NOTE: Tuning down to 34Hz and F3 of 26Hz, will be adequate for low tuned, music, net volume up to 4 cubic feet. NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.