if I add a 2 channel amp to the ARCAM will I still be able to hear my TV when needed through my towers, center channel and 2 REL’s?
Absolutely yes. When you select the input on the stereo integrated (optimally the HT Bypass input if it has one) that the front L/R preouts from the AVR are connected to and that’s it — HT as normal. Simple! But obviously you want to hook your better stereo sources to the integrated (which is also the only amp connected to your front L/R speakers), and by doing it this way the AVR is completely out of the chain when playing more critical 2-channel music.
if I were to add a 2 channel amp what would you recommend? I was looking at Moon. Also, would the ARCAM produce too much noise.?
I couldn’t say without knowing what sound characteristics you’re looking for. Moon could be great if it has enough power and matches with your sonic preferences/tastes. As mentioned above, the Arcam is completely out of the loop for 2-channel in this setup so its noise is a non issue. Hope this helps clarify.