Port tuning for sundown e-10

[Kylemay1]

I built a box under my seat and as of right now with the box is 1.1 cubes and thats with the sub in. Its in a 99 silverado. All i wanna do is port it with an aero port. Preferably around a 3 inch one but 4 would work to. Just need to know how long i need the port to be before i order one. Going for sq on this one so tuning around 35-40 hertz i guess. Thanks guys for all your help

[timc31610]

How much available space do you have? I believe the port will have to be external.

[timc31610]

For port calculation -------> http://www.psp-inc.com/tools.html

Looks like a flared 3" port at 13.75" would hit 34hz.

[Kylemay1]

As far as space for the port internal? I can go about 15 inches deep with it. Inside the box of course. Then the box rises a little to go over the hump in floorboard of back seat

[timc31610]

If you port internally you will decrease your net airspace considerably. Do you have pics of the box in the truck? Also what power do you plan on using?

[osiris10012]

I am running my e10 in a 1.25 cu ft enclosure tuned to 35 hz. It has 14 sq in of port per cube and sounds great.

[Kylemay1]

Yea i see your point about decreasing internal air space by porting internally but gotta remember being under my seat theirs not much space to work with. And yea i got pics just dont know how to post them lol. And that port calculator told me a 3 inch aero port 13 inches long would tune it to 35 hertz

[Triticum Agricolam]

How much power are you going to be putting to this thing? With a 3" port you might have port noise issues if you put too much power to it.

[Kylemay1]

Running it on a rockford prime 1200 at 2 ohms

[Triticum Agricolam]

OK so that amp puts out 800ish watts at 2 ohms. Your 3" port is not going to cut it, at all. You need to go up to a 4", which is going to be significantly longer.