As the OP has amps that offer 600 wpc., I think speaker efficiency will not be a limiting factor unless the speaker has a nasty impedance dip.
Most here on Audiogon know of my love for Vandersteen- which Audiotroy doesn't carry. The Quatros's and above have subwoofers that can be EQ'd to the room. And, I am sure they will fill his room with enough sound pressure to make his ears bleed.
My other recommendation would be MBL. They ain't efficient, nor cheap, but will out perform anything out there when given the proper signal.
Bob
Most here on Audiogon know of my love for Vandersteen- which Audiotroy doesn't carry. The Quatros's and above have subwoofers that can be EQ'd to the room. And, I am sure they will fill his room with enough sound pressure to make his ears bleed.
My other recommendation would be MBL. They ain't efficient, nor cheap, but will out perform anything out there when given the proper signal.
Bob