Min 400 watts into 4ohms more is better, get a good sub to takeup the 60hz and below, Pull them out a minimum of 3 feet from the back wall as far as 5 depending.
But if you really want rock speakers VMPS,VR,ATC, NHT 3.3's used, Legacy.. etc.. get a sub
But if you really want rock speakers VMPS,VR,ATC, NHT 3.3's used, Legacy.. etc.. get a sub