I'm getting to the stage where I gotta make ports for my box, so I am wondering what king of material should I use. I've seen "cardboard", fiberglass, wood and plumber pipe. Which one should I use?

Here's another one... I'm making the box for 2 12". Should I make them fire in the same room, or should I put a wall between them to seal them from each other?

 

Port the box using slot porting techniques. Keep the woofers in seperate chambers(put a wall in between them). Make sure you use a subsonic filter and be sure you use a proper box building program to get the proper porting dimensions for your woofers. Be sure you adjust your gain properly because ported woofers are more likely to clip and are easier to destroy.

 

Actually the box is manufacturer specifics'. What the hell is a subsonic filter? I'm still stuck with the same problem though... Do I make the port with wood, plumber's pipe, fiberglass or something else?

 

Definately seperate the two subs. I know this has already been said, but its good advice, and should be heard twice.

So you don't know what kind of tube to use. Cardboard is crap, and even when glued in place it will eventually get shaken off and fall into your box, and its REAL annoying getting it back out. My friends box did this all the time after a couple of years. I would recommend something with flared ends caps, like the ones they sell at Crutchfield (they are probably plastic, but that should be fine). The flared ends help eliminate port turbulence, which is basically a low pitched fart from the port at certain frequencies. Check with the sub's manufacturer on the required port length, and box volume, and then check out Crutchfield.

Crutchfield Port Tubes



D

 

Thanks guys... To save a few bucks I think I'll take PVC pipe and fiberglass some flange to it.

Now, here's another question... Should I carpet or paint the box. My car is yellow, so it might look great having the box painted the same color as my car . But if ever I decide to paint, what kind of paint should I use of fiberglass resine (because the box will be entirely covered with fiberglass resin)

 

I'd carpet it. I'm sure you can find yellow box carpet on the net somewhere. If you just paint the box, you'll have to bolt it down in your trunk, cuz it will slide. Post some pics once you get it all set up, we'd love to see em.

D

 

if you paint it, you could either bolt it down, or invest in those little rubber feet thing to stop it from sliding around. depends on the look you want. personally i think carpet is better so that it matches the trunk.

 

If you decided to paint... a little velcro on the bottom of the box (just hook side) will LOCK it down to the carpet. No movement at all. (the only problem I can come up with is it's a real pain in the *** to move it if you'd like to... gotta kinda lift and hold down the carpet at the same time... try it with 50+ pound subs)