I think the 150 would be a fine match, especially in that room, it is more for dialog in movies. I owned one for many years with my m60's and leter m80's, in my bigger room, it it was fine.
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M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana