Here is my equipment list: B&W's all around, 603 mains, LCR60 center, 601 rears, all Series 3's, Velodyne CHT-10 all being driven by a Marantz SR6200. I now feel the need to have "better" sound coming from the B&Ws. Should I keep the Marantz as a pre/pro and get a Rotel RMB-1075 as an amp or simply replace the Marantz Receiver with a Rotel 1065? My main motivation for an "upgrade" is to have a little louder yet more accurate sounds coming from the speakers. Any/all suggestions and opinions would be greatly appreciated. Thanks much.