Just thought of getting a sub woofer, I am not looking for a Genelec, Mackie or JBL (can't afford them), and my control room is 12x12, so I dont need a very powerful sub. I guess I am stuck with these 5 choices Event 20/20/S250 Subwoofer, M-Audio SPX, Samson Resolv 120a, Tannoy 110 CS Active and...