advice for tuning 4th order!!!!!!

[SyeKoticBASS]

Got a question for anyone who has 4th order experience or has heard 4th orders what tuning should I make the port section to smash 28hz and up to say 40hz with authority. Im mainly building for demos,hairtricks, cant breath and wanna crush the lows and move tons of air?? Thanks for any help

[nocturnalrites101]

depends on the car the subs the airspace your sealed chamber tuning . etc need more info . its not just point and click

[SyeKoticBASS]

02 dodge durango. 8 sa 15s off 2 crescendo 3500s. 1.5 sealed a sub 4 on each side. 3-3.5 ported chamber

[SyeKoticBASS]

Would 45hz be tuned to low

[john253a]

45 should be around where you want to start but I like 47-55 with mine(sub being the determining factor)

Are you do a 2:1, 3:1 something else

1.5sealed - 4ported isernt a bad ratio

Have you thought about 4@28, 1.8@53 in a 6th

[Katt]

2:1 ratio, around 45 Hz. What you can do for tuning, use 2x4s and shrink till it doesnt get any louder. Then, that's where I'd permanently make a port that size. That's what id do anyway.