Port area for Eclipse TI 12

[UMWDawg92 10+ year member]

ok so I just have a quick question about how much port area I should use. I'm building a box for my Eclipse Titanium 12, it's going to be 2.25 cubes @ 27hz. Im porting it through the rear deck in my car so the sub will fire into the trunk and the ports will fire through the deck into the cab. I'm thinking either 2 4inch aeros or 1 6 inch. So about 25 and 28 sq in, that going to be enough? oh and just an opinion question for you guys, should I inverse mount the sub? I love the way the moter on it looks but the cone is nice too... Thanks!

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[RAM_Designs 5,000+ posts]

You port is going to be very long with a pair of 4's or a single 6 inch aeroport.

 

[pro-rabbit 5,000+ posts]

I use a single 4".

 

[RAM_Designs 5,000+ posts]

Either a single 4"er or a slot port. Slot port is much easier to get a low tuning while still using adequate port area.

 

[UMWDawg92 10+ year member]

yea I knew the length would be a problem I was going to elbow them in the box but it's probably more trouble then it's worth. I've done it before and it was kinda a pain in the ***. Single 4 inch port enough area then?

 

[RAM_Designs 5,000+ posts]

Single 4 inch port enough area then?

It's debateable since the Ti is such a high excursion driver. Just kinda depends on how hard you plan on pushing it.

 

[UMWDawg92 10+ year member]

that's what I was thinking, I had it hooked up in a different box just for a test and it was moving a ton of air compared to the type R I had in the box before.

 

[pro-rabbit 5,000+ posts]

I have personally used the sw9122 with single 4" port. Works great as long as your not skimping out on the box size(which your not). I had one tuned to 30hz and when we did two i had them tuned to 32hz(used 2 4" ports). Both worked amazingly and sounded great with no port or mechanical noises.