Alpine X 12" Enclosure Recommendations

[Marve_Lous]

It’s wired at 2 ohms. This is the box. It’s my first carpeting job so don’t bash me. And I have it pushed against the rear seat.

 

[Marve_Lous]

Don’t give up on that Type X unless you’re going to sell it to me. Those are really great woofers. Instead of changing to a W6 let’s figure out what’s missing. What is it wired to? Send a photo of the box so we can see it. Also what kind of vehicle is it in and where is the sub firing?

You can make me an offer...

 

[Clifff150 10+ year member]

I think the port is too small. Again, I know you followed Alpines specs but I just don’t think that’s good enough for the sub. I think the box build looks good by the way

 

[THATpurpleKUSH 5,000+ posts]

Like i said in your other thread:

Port is way too small

Box volume is too small

After seeing a pic I will add this:

Port needs to rear fire, you should only side fire the port in a trunk car if you know what youre doing and have a loading wall.

 

[SlugButter]

I would do 3 cubes at 28 hz with the type X. The w6 is more efficient ported than the type x, in terms of box size. That x wants to be in a big box tuned super low, with lots of port area. 40 sq inches or so. my opinion.

 

[jt4x4]

I'm no expert, but that port looks tiny! What is it, a 3" square?

 

[Clifff150 10+ year member]

I would try and sell the box and build a new one with an aero port. Or you could seal it up, get a 10, and aero port it

 

[Marve_Lous]

I'm no expert, but that port looks tiny! What is it, a 3" square?

Alpine’s specs said 3.75” x 4” x 18”

 

[Marve_Lous]

I would do 3 cubes at 28 hz with the type X. The w6 is more efficient ported than the type x, in terms of box size. That x wants to be in a big box tuned super low, with lots of port area. 40 sq inches or so. my opinion.

Good thing I have the trunk space. I may try this. I listen to mainly hip hop and I want to hear and FEEL the bass so this should do the trick you think?

 

[Marve_Lous]

Like i said in your other thread:

Port is way too small

Box volume is too small

After seeing a pic I will add this:

Port needs to rear fire, you should only side fire the port in a trunk car if you know what youre doing and have a loading wall.

Rear firing even if the box is pushed up against the rear seat? It won’t suffocate it too much?

 

[Clifff150 10+ year member]

Rear firing means the sub is facing the trunk. Forward firing means it’s facing the front of the car. I find rear firing in trunks works best

 

[Marve_Lous]

Rear firing means the sub is facing the trunk. Forward firing means it’s facing the front of the car. I find rear firing in trunks works best

I was responding to THATpurpleKUSH when he stated "Port needs to rear fire." So... I assumed he meant the port should fire out the rear of the box while the sub is facing the rear of the car. So you're saying the sub AND port should be on the front of the box firing to the rear of the car?

 

[Clifff150 10+ year member]

Yes

 

[Marve_Lous]

Yes

So if I build a 3 cu. ft. box with a slot port; how wide should the port be? It'll be 12.5" tall... so I was thinking 2 or 3 inches wide?

 

[Clifff150 10+ year member]

I’m not the guy to ask on slot ports. I’ve never ran one (well not one I’ve built). I do aero’s only. @shredder2 knows his stuff when it comes to boxes