This will be my first seperates system, and I was a little worried whether the speakers I chose would work okay with the Denon AVR-1905. The speakers are: FRONT: Wharfedale Diamond 9.1 CENTRE: Wharfedale Diamond 9.CC REAR: Wharfedale DFS-18 SUB: Wharfedale Diamond SW150 Looking at the AVR-1905's product leaflet, it says something about 80w per speaker, but the fronts are 100w, the centre 120w, the rear's are rated from 20w to 150w, and the sub 150w. So will they work okay? Ive just thought of another question now as well. Would it be a good idea to use some Diamond 9.1's or Diamond 9.DFS's for the rear instead of the DFS-18's?