What kind of music do you listen to? 36hz is not bad for daily. If you go lower, I wouldn't go much lower than 32-34hz. To do this you just need to extend the port a little longer. It will remove some of the internal volume, but you have a little extra to play with anyhow.

It's lowtonez design so I'll let him calculate your new length and internal Vb.

GL

 

I won't lie, like 90 percent of the time it's rap.

But everyone once in awhile some pantera is awesome.

If you guys all say 36 hertz isn't bad, I'll go with 36 because I really don't have as much of a background in car audio as you guys.

 

I think LOWTONEZ box will be impressive for what you're listening too. It would be louder than the Bassworx box I suggested and would most likely sound just as good.

 

the lowest tuned bassworx box ported is 36 htz. with 3.2 cf3 of air space. I priced it out at a shop offered to give me a deal of $500 retails for $700.

 

I can tune it lower, but you will lose airspace or port area. 36 hz is great for daily and like i said it has an F3 of 32 hz. The design will gain from 32 hz and up and has a low port velocity of 22 m/s/@peak with 2000 watts to the subs. I listen to rap all the time too and i have never tuned under 34hz especially with smaller drivers. If you had 15s or 18s, okay. But with smaller drivers that cannot get down low as easy, can stress them out and cause premature failure. And this box is not a generic design, it is designed around your speakers parameters on 3 different programs to find the best compromise.

 

Ok sounds perfect then. My only worry now is the depth, I gotta double check that it'll clear my hatch because it's concave and at max height and max depth it may or may not close lol. I'll go double check that.

What kind of tools do you guys think I'll need? I have drywall screws and a drill, my only obstacle now is getting the sheets cut to specific sizes.

 

Sweet! Found a table saw at home depot for $48/day

 

2.2635 after displacement (.071 each) @ 36hz. I was going for 2.25 with 16 sqin per cube @ 35hz. 4.669/2 = 2.3345-.071 = 2.2635*2 = 4.527*16 = 72.432 port area required (.068 over). Atleast there's no decimals. 1" MDF and spacing between subs/walls if the outside diam is 12.5".

width 36
height 16.5
top depth 22
bottom depth 22
wood thickness 1
port height 14.5
port width 5
port length 1 16
port length 2 0
total port length 24.5
square port area 72.5
box volume 4.669
tuned frequency 36.422hz

 

Thats a shared chamber though right? Also the drivers displacement is 0.08 cu.ft flush mount, not 0.071. Also you have smaller port area for the same tuning as my design which may run him the problem of whistling port with the power hes throwing at them.

 

It's the RE slot port. Your designs sweet what program did you use?

2.2545 each & .0365 cubes over 16 per 1. So it's better to have more port per same tuning? That'd mean your box was bigger? Is 14-16 the general sqin of port per cube or is it like 12-14 cuz they're small? I like to skip decimals & use the same spacing all around.