Hi everyone. My dedicated HT room is measured as 14.17(L) x 12.2(W) x 8.79(H) feet. I want to add an additional sub woofer to my system. I am tossing up between Monitor Audio monitor audio silver w12 and SVS SB-3000. Can you please shed some light? I am currently running 3 Montior Audio gold 4G for the front 3 channels. Surround and ceiling speakers are Swan Diva and existing sub woofer is Swan Diva Sub10D.