Subwoofer Placement Help!.

[PLuKE]

Am after some advice, I'am want a sub for my bedroom, But i cant have rear facing port speakers as they just boom to much as 2 walls in my room where my Hi-Fi is has studded walls. So i was thinking about a sub that has a rear facing port and its sitting infront of the studded wall so the port is firing onto the wall againest a Will it just boom far to much?. The sub will be sitting next to the speaker, But its sort of in a doorway, Will that add alot of booming aswell?. The sub will be placed to the left of the speaker. Now will that area of the doorway cause booming from the sub?. PIC http://img523.imageshack.us/img523/817/dsc06298ik8.jpg

 

[PLuKE]

Bump, Am going to try some subs tomorrow. So need to know as 1 sub has front firing bass and port, And the other had front firing bass and rear firing ports.
Thanks