Yeah a Class D 100 watt would rock.I have the Quad 11L but they are self powered.I wish I had the 12L amped version though and w have heard that some prefer passive ones.A small sub would be good to fast and music not HT oriented (Aperion 8S or HSU VTF etc).But that small speaker in that sized room could use more current.
Chazz
Chazz