Box Build for 2 SSA Evil 18's on 2 NS-1's!

[bigbud747 10+ year member]

Got the call from someone local to build a box for his setup. He has 2 SSA Evil 18's on 2 NS-1's at 0.5 ohms a piece, with 4 XS D3100's and a Mechman 270. His current box was initially built for 4 18's (something like 18 cubes net) and stuck WAY above the window line. He wanted a box for just the 2 that he has, a lot smaller box, and something with a little "flair". Well, here it is...

Specs:

13.2 cubes net

12" Octaport

32.3 hz

Double layered all around (except sides)

Window style bracing

Bolt terminals

Bedlined outside with a fire-engine red port

Be sure to watch the video at the end!

Click to read more...

 

[thatguy12 10+ year member]

nice

 

---------- Post added at 10:36 AM ---------- Previous post was at 10:35 AM ----------

 

are those Ports hard to make or just gotta know your angles?

 

[bigbud747 10+ year member]

Thanks. They're very easy to make. Your cuts are all 22.5 degree angles. And the equation to figure the port area is (2+2(sqrt)2)x^2, where sqrt means square root, and x is the length of each internal side.

 

[bigbud747 10+ year member]

Had a meet up today. What was going to be 3-4 people turned into 15 vehicles meeting up and showing off their systems. Got the amps strapped and tuned properly. Managed to pull off a 154 in the kick at 38 hz and a 150 at 30 hz. A few things to point out:

1.) ZERO sound deadener on the roof. Theres deadener everywhere else, but the roof.

2.) Yes, the truck peaks at 38. Does a 150 at 30 hz also. It's a low end monster.

3.) Voltage is dropping down to 10.3-10.5 (SMD VM-1 is NOT ACCURATE from the cigarette lighter)

Didn't manage to get any videos this time, but I will next time I see him. He's calling Mechman soon to order a second alt (probably a 380 or bigger to go along with his 270), and a couple of more XS batteries. Customer is ecstatic about everything, and absolutely loves how it sounds. The entire truck just shakes on the low notes.

 

[phemps 10+ year member]

Nice box build, looks good