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?
|Vizio S4251w B4 5 1 Soundbar , Optoma Hd25e 2800 Ansi Lumens 3d Home Theater Projector|