That is a very respectable receiver, and should work fine for both HT and music. You might find the receiver's Pure Direct mode will sound best for music as you speakers should need little to no correction. My Denon's stereo mode runs the front 2 only which suits me fine and will sound amazing with your RAAL towers. I'm sure you already know how well the Oppo will work for both movies and music. Envious of your TV ... I saw the 55" version in Costco recently and the picture was stunning. LG has technology that nobody else is using at this point. Looking forward to seeing your setup.