Your room is close to my listening room, 24x14 w/ vaulted ceiling. Mating the speaker to the room is the best way to start building a sytem. My first speaker was Vandersteen 2C which was ok but a little too big to really breath and bloom in this size room, from that I went to Alon 1's which is a bit smaller floorstander that was a much better match for my room. I currently am using Totem Mani 2 monitors which is the best match yet. Plenty of bass and I am able to power them up to get the best out of the speaker. You will need a rather muscular amp to drive these though, I am using a Bryston 4B. My room seems to sound better with the smaller speaker being driven with a bit more power, rather than the larger floorstander with the volume lower. One thing you won't have to worry about is the Totem filling the room, but you will need an appropriate amp.
Room size
Sorry if this has been discussed. How big is a large room? Medium size room? Size is always mentioned, but dimensions rarely given. My room is 14x21 with ceilings that go from 7 ft to a peak of 13 ft and back down to 7 ft. Is this considered a large or medium size room? Im considering going to a monitor speaker (Totem perhaps) and wonder if they will be fine or too small for a room this size. Thanks to all who reply.