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Discussion Starter · #1 ·

I see that my optoma only has does not have optical audio but has a light blue jack (audio out) and seems to have light green jack as well but i think its for vga. I looked at the manual it says optical and digital  coaxial are better for sound. Is this a digital coaxial connection? I went online to buy but it i am seeing digital coaxial with rca connections am i looking at the right cables? 
 
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