Hi I just joined this forum and have a few questions. Get ready to absolutely despise me for my overall lack of knowledge and pathetic set-up. Any how, I just upgraded my pathetic sound system with a larger subwoofer, hopefully that provides a little extra pop. I think it is 150 watts and has a 12" driver. So I read somewhere that two subwoofers were better than one, so I was wondering if i should also connect my existing subwoofer in addition to my new one. The new one is Monoprice and the second is Yamaha. My yahama is an entry-level one - 8" drive and like maybe 100 watts. Is it even worth it to set-up both? Will they cancel each other? I probably will have to place them next to the front speakers for placement, and I have quite a large living room with a connected kitchen - quite a large area. Thanks for the help and belittling the **** out of my puny system.