All depends on room and how loud one listens... Personally I think the Nad would be sufficient in terms of power...most Spendour owners are not Hi volume rocker folks...however... The Type of sound seems to be in question...but try but that wasn't the original question... Fwiw... I have had several Nad integrated S over the years...they are known driving 4 ohm loads and deep "reserve power"... Don't let the 50 wpc spec fool you