i`m driving my 80`s with a 990(3310) in a 20` by 30` room no problem even @ high levels.....4310 will even be better...i replaced my onkyo 700 with this and it has been a definite upgrade in 2 channel music and major upgrade in hometheatre.

denon 991 /M80's /vp150 & 180 /4x QS8's
Velodyne 15"/ Dbox 12"
ps4 benq w1070 -grand view 106" FF