The 990 vs 1068 would be a tough call for me. I currently own the 1068/1075 combo and overall I am very pleased with it. The Rotel sound is unique, and will somewhat depend (obviously) upon what speakers you are using. I would really want to hear the 990 first, but if I already had the 1075, I would most likely get the 1068. They are made for each other and the resale value of the pair would be higher. Further, you might find that the 1068/1075 sounds better too, which is a always a matter of personal opinion, period.