look into Wharfedale Diamond 9.6's they are a large fullrange speaker with a warm natural sound and also deliver clean strong bass response down to around 30hz. I have a large room also (28' by 22' by 8') these fill my room wonderfully. They also have a curved cabinet design that is solid and sleek, as well as the neat kevlar drivers. they can be had on Audiogon or ebay for around $600-650 or $1000 new. Their smaller siblings (the 9.1s) were given rave reviews on stereophile by Robert Reina. here is a small snippit
The Diamond 9.1 had two attributes that floored me:
1) Extraordinary resolution of detail in the midrange, with no trace of coloration. Low-level dynamic articulations in this region were subtle and linear, and the speaker's ability to render soundstage cues, ambience, and hall sound were what I would expect from a speaker costing $2000/pair or more.
2) A refined, delicate, and detailed presentation of high-frequency articulation, with no trace of either hardness or softness and with a perfect replication of transients.
The Diamond 9.1 had two attributes that floored me:
1) Extraordinary resolution of detail in the midrange, with no trace of coloration. Low-level dynamic articulations in this region were subtle and linear, and the speaker's ability to render soundstage cues, ambience, and hall sound were what I would expect from a speaker costing $2000/pair or more.
2) A refined, delicate, and detailed presentation of high-frequency articulation, with no trace of either hardness or softness and with a perfect replication of transients.