need help tahoe 18s wall

[mikemeyer88 10+ year member]

need help with my new wall im runing 2 fi bl 18s i want to do a wall at 32hz any help on port size would help me out alot

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[misfit138 5,000+ posts]

You're going to need to provide quite a bit more info there, son...

 

[I Like Waffle]

Youre not running a wall.

 

[misfit138 5,000+ posts]

Youre not running a wall.

lulz

 

[I Like Waffle]

lulz

People think its that simple. Lol. Im working on my first trunk wall and its a major PITA.

 

[misfit138 5,000+ posts]

People think its that simple. Lol. Im working on my first trunk wall and its a major PITA.

I like to keep it real simple, man. That's why I'm going to be using 3 multi-channel amplifiers to power one pair of components and a single subwoofer.

Seriously, I don't even want to think about how much of a pain in the ass it's going to be once I get started...

 

[mikemeyer88 10+ year member]

i am doing a wall..its a 4 door tahoe i have 2 fi bl 18s fully loaded the wall is 17.5 cubes after port right now the port is 28" long 6" high and 14" deep i belive its around 32hz already just wondering

 

[RAM_Designs 5,000+ posts]

Yeah, pretty close to 32hz, but you're not using quite enough port area. I've never had a 32hz port only be 14" long...

 

[BassMechkanic 10+ year member]

i can do it for you, i am located in tampa

 

[mikemeyer88 10+ year member]

well one of my friends has 4 of them in a wall but his wall is 28 cubes and the port is 42" long 7" tall and 14" deep and its at 32hz thats whats scott from fi told him..should i make the port with wider than 28"? i was also told sence i have a 17.5 cube wall that i need 280 square inches of port and right now i only have 168

 

[mikemeyer88 10+ year member]

how much?

 

[RAM_Designs 5,000+ posts]

I'd personally do subs on passenger side and port on driver side, with the port going the full height of the box and however wide in order to get ~14in^2 of port per ft^3 of box volume. Since your box is on the big side, 12in^2 per ft^3 will be fine. Either way you decide to do the port, shoot for around 210-230in^2. Going up to 280in^2(which is 16in^2 per ft^3) is going to need to be a good bit longer to get the same 32hz tuning.

 

[mikemeyer88 10+ year member]

ok so 32" tall 8.5" wide and 14" deep divided by 17.5 for the box will give 217"? also what sub will hit harder and lower i have the fully loaded bls but was lookin at the aq hdc3 18s?

 

[RAM_Designs 5,000+ posts]

Port area is just the opening size of the port, or the "radiating surface area." So you'd just multiply 32"x8.5" to get it...which is 272in^2. Fully loaded BL's are nice, I don't see the HDC being a worthwhile switch...kind of a lateral move, in my opinion.

 

[mikemeyer88 10+ year member]

ok thanks man... ill prob do a 32x7 port or something around that size as long as it is around the 32hz range