I am looking into picking up the Onkyo 703 to go with my NHT Superzeros. I've been using a Sony DA50ES with them. My main concern is that the Sony was 120 watts per channel and the Onkyo is 100 per channel. I never even had the Sony up to halfway on the volume so I don't think that the lower power should be an issue, but I wanted to see if anyone has any experience with this or similar combinations. Thanks!