I have a Denon 3803 which I am really happy and gave me good sound with my B&Ws for the fronts. But I got bored and thought it would be nice to upgrade so bought some Kef References 2s for the fronts and would now like the 200c or 100c for the centre. I have a 7.1 setup with Missions for the rears. Now I don't think my 3803 is good enough. Will I have to change my 3803 or can I just just add on to it some how.