two small aero ports or one big one?

[t-scene]

Im building a 2.5 CF box after woofer displacement and was wondering which would sound better and or get louder. 2 3inch aero ports 11 inches long each or 1 6inch aero at 22 inches long

[mazdakid]

A single 6" is about 2x as much port area as 2 3" ports.

[Sonic.]

Go with the 6"