...so in a smaller room you cannot get good bass without subs ?
Yes you can but you have to work harder at achieving the goal. Your room width is the same as mine and about 3 feet less in length than mine so I know it can be done. To start, get at least one if not both subs out of the corner. A couple folks posted links to videos that show you how to place subs using the crawl method. Try it out, you might be surprised. I use the method referenced by Atmasphere, but you can accomplish this with 2 subs as well, and they don't have to be big subs.