I've heard the S5s with Absolare SETs (52w) in a room measuring approximately 20'x27' with the back of the speakers about 6' into the room. The soundstage depth and width were well beyond the speakers, and volume levels could easily reach live concert levels.
I'm using Q7mkIIs (94db) in an acoustically treated room measuring approximately 18'x25' with both Absolare SETs (52w) and Soulution 701 monos.
The back of the speakers are about 6' into the room. The resulting soundstage depth for both amps is very layered and deep, and the width extends to the room walls. Realistically live volumes can be obtained with either set of amps.
I've found that, at least in my system, the soundstage is more influenced by the distortion/noise of the electrical power and in the source components than the power (watts) of the amplifiers. Of course YMMV.
Last edited by cmarin; 10-29-2015 at 07:27 AM.
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