[18" Fi Bl Box Question.]

im going wit 4 18 BLs wit 5 cuft after all displacement tuned to 31hz to hit the lows let us know wat u decided to go with as far as tuning and box sixe and post build pics if u can

Ok...so I talked to my friend today and he said It would be a 14x30x30 with a 6x6 port whole. 5.88 cf net. I'm guessing he is right. Can anyone calculate this for me? I dunno how to.

[18" Fi Bl Box Question.]

I was reading on a post, and it said that the size of the port comes into play when tuning a box. How does that work?

[18" Fi Bl Box Question.]

7cubes net at 34hz sounds good

sub up, port back

3/4"mdf for the wood, maybe a double baffle, and a smalle amount of bracing.

When you say 7 cubes do you mean 7 cubic feet? My friend said 5.88 cubic feet is around 34Hz. Or does cubic feet determine what a box is tuned at? I'm a noob at box design lol

[18" Fi Bl Box Question.]

Hey guys whats up? I'm new to subs, and systems. Only been into them about a year. I'm about to order an 18" Fi BL and a HIFONICS BXI2006D amp. I guess you could say it's a BIG improvement from my first system (Sony Xplod from walmart. Please don't lol too hard )

I'm posting to find out what would be a good box design for it. I drive a "93 mustang hatchback and I'm going to let my back steats down to find the room to install it I also need to know what hz my box should be tuned at. The specs on the FI site https://ssl.perfora.net/www.ficaraudio.com/...view.shopscript says 30-37. So my friend and I were shooting for around 34Hz. And what type of wood would be good?

What would the specs be for a 34 Hz box. My Friend knows, but I want to see what you guys think. He has been doing systems for years now.

I'm sure you guys know more about this than I do. All responses are welcome. I will enjoy reading them all. After I get it installed I'll have pix of it up if you guys would like to see it.