Hi David,
Is 16x22 your listening area or the room size? How far away do you sit from the TV? Also what proportion of the time will you listen to music/movies? These will help determine if you need to extra step up for the 5T's which would be much better for music listening. For movies there's really no difference.
Jason
Speakers: Aperion 6T's, 6C, 4B's, and 8D
Receivers: Onkyo 805 and Pioneer SX-1050
DVD player: Oppo 981HD
TT: Pioneer PL-71
Amp Selector: Niles DPS-1