Hey guys last build was with 4 SA 15's and after trying to sell them the last 2 months with no takers I found a great deal on 2 more and now have 6 and want to do a full blown 4th order b pillar wall in my focus se wagon.
Heres the video of the last build https://www.youtube.com/watch?v=jZ1L...ature=youtu.be
New to 4th order designs I know the bare minimum about them any help as to how much sealed, ported, and tuning will be appreciated
I have roughly 65" Length, 42" Width, 30" Height give or take a little.
Due to low height unlike a SUV heres my idea on how I want to do the design
Basically just curious on the following
1.suggested sealed side
2.suggested ported side
3.does it matter if subs motors are firing into sealed box or ported box? cause I've seen them go both ways in 4ths.
4.How much sq in of port should I use and what should the port be tuned at? I hear its much higher then normal (28-32hrtz) even if you want to smash the lows I heard 40-50hrtz tuning is normal? but something with the sealed side is where the low freq comes from..?.?
Pretty confused any help guys?
2005 Dodge Magnum RT
4 Sundown Audio SA 15's, 1 Sundown SAZ4500 @ 0.5OHM Daily, 8 fosgate mids/highs w/ fosgate 400-4 amp. 152.9db @ 44 hrtz, 149.6db @ 22 hrtz sealed up legal on dash! Box 14.5 cu ft tuned @ 30 hrtz.