I have 2 x f113 in an identically sized room. Walls are not shacking at all. Just clean tight bass. Get one f113 first, and when funds permit get a second and run as discrete stereo pair. Always nice to know there is an upgrade path down the road. Getting 2 x f110, be done with it and always wonder what 2 x f113 would have been like is plain audiophile torture IMO.
