Port Tunning

[araarin]

Got a wall with 4 Lvl 3 15's it's around 13.6 cubes after displacement I was told I need around 210 to 240 square inches of port my question is how long should the port be the inner measurements of the wall is 43.25x32x17 and I'm chasing at least a 150 do you guys think its possible

[mrd6]

Definitely possible...but this is kinda a big build to jump into without even knowing how to tune your enclosure. Is any of it built already or is this hypothetical?

[araarin]

Yea I actually built it I had it wrapped and everything but I only had a 140 square inches of port I tested it it was loud but nearly as loud if I had don the ports right the first time but this is my first wall build

[Joe X]

Got a wall with 4 Lvl 3 15's it's around 13.6 cubes after displacement I was told I need around 210 to 240 square inches of port my question is how long should the port be the inner measurements of the wall is 43.25x32x17 and I'm chasing at least a 150 do you guys think its possible

13.6 is your external volume, don't have the space.

[B4SS H3ADD]

Im pretty sure it can pull it off. Ive seen a 50 off of 2 XL 12"s

[araarin]

What does my external need to b

[Joe X]

About 23 deep based on a 35.5Hz tuning 183 square inches of port.

Edited July 6, 2012 by Joe X

[araarin]

Thanks but is it possible to bend the port to get the 23 inches

[Joe X]

Thanks but is it possible to bend the port to get the 23 inches

The box I mean, the port would only need to be 15 1/2, and that without a double baffle.

[mrd6]

so youve got a pretty small box for these subs. 13.6 cubes not including port, sub, and bracing displacement is going to knock you down to around 3 cubes per 15...how much power are you going to be running? Kinda need to know that before making any recommendations. To save box volume you could always try to do an external port as well depending if it wold fit. Any pictures?