i second the opinion on the totem mani 2's. awesome speaker. for a room that size and depending on how much bass and loudness you are looking for, will determine if you can go with a bookshelf speaker or not. i had a room a little bigger than yours (24ft long) and went with floor standing usher speakers. huge difference, more full sounding, easier to drive, overall a good move. BTW: i even teamed up the totems with a pair of subwoofer which was better but hard to get them dialed in. i also went from a pair of mani's in my other smaller room to the usher x-719 and i like them better too. much easier to drive than the mani's since the mani's have the isobaric woofer arrangement.
good luck.
good luck.