I've seen various responses to this topic. Before trying it would like to know if there there would be any noticeable improvement in using my RX-V1200 as a pre/pro and buying an external amp. Receiver is working fine and just looking for better SQ. If it wasn't for the HDMI "thing", I think I would buy a pre/pro and be done with it. However, if I can make some improvement now with an amp that can be used later on if I go the dedicated pre/pro route, then it might be worth doing. I currently have Studio 20s, Servo 15, CC470, and ADP 470. Thanks in advance.