Hi all. I currently have RCA connectors going from my TV straight into the RCA input on the back of my Naim amp to get the sound to go through my speakers. I'll be replacing the TV shortly and RCA out are not on any of the tv's on my shortlist. I have the option of optical or ARC hdmi. I guess i'll be using the optical. Am i right in thinking that i can put the optical into a DAC and then into the naim? If i can i'll have two options. The cheapest DAC possible to do the job reasonably well or a DAC that i can stream into from my iphone as well so that i can remove my airport express and the DAC can do both the streaming and the TV sound.