Matt, I have a similar sized room and have been generally nagged with LF room effects. I can appreciate your interest in finding a statement full-range speaker that takes advantage of your monoblock power. However, in view of room constraints it may make more sense to concede to mains with restricted LF in order to gain the flexibility of separately positioned dual subs. Maybe Zu Submission-- considering its relatively small footprint.
On a different path, maybe an omni like MBL or HHR Exotic could turn the room constraints to advantage. The Walsh-derived HHR TLS-1 was my personal favorite at Axpona and has moved me to a complete rethink of speakers. (Query Doug Schroeder at Dagogo). It may have slightly restricted dynamics relative to the others(less of an issue in a smaller room), but its refined natural timbre and spatial presentation within limited room space is extraordinary.
IMO Kaiser is a very strong contender among small-footprint speakers. I've never heard the excessive brightness of which you speak.
What do you think of the Scaena Manhattan? That one is also on my short list. It has great resolving power and a dynamic and exciting "big" sound, though is certainly best suited to a room with ample distance to the listening position. Not sure if you could manage that along an 18' room dimension.
On a different path, maybe an omni like MBL or HHR Exotic could turn the room constraints to advantage. The Walsh-derived HHR TLS-1 was my personal favorite at Axpona and has moved me to a complete rethink of speakers. (Query Doug Schroeder at Dagogo). It may have slightly restricted dynamics relative to the others(less of an issue in a smaller room), but its refined natural timbre and spatial presentation within limited room space is extraordinary.
IMO Kaiser is a very strong contender among small-footprint speakers. I've never heard the excessive brightness of which you speak.
What do you think of the Scaena Manhattan? That one is also on my short list. It has great resolving power and a dynamic and exciting "big" sound, though is certainly best suited to a room with ample distance to the listening position. Not sure if you could manage that along an 18' room dimension.