Roku 3 to Bose 321 series ll

Mar 13, 2018
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Looking for a way to get sound from Roku model 4200x to Bose 321 series ll. Optical cable will not work. Would hdmi to component cable work. Right now Roku is connected via hdmi to tv. Want to be able to view netflix through Bose 321. But no luck. Also using the dish hopper with sling. Anyway to connect roku to hopper but still be able to view dish. The Bose is probably out out of date.
 
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