The status showing 3/2.1, is a 5.1 signal. The first "3" is for your front sound stage channels, left, right, and center. The "2" is for the surround channels, with .1 being the LFE channel.
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Main HT <> 976 <> 7200 <> Ultra-X12 <> sapphire ST2 mkII RF/LF <> sapphire SC center
sapphire ST2 mkII SBR/SBL <> sapphire SS SR/SL <> Verizon/DVR <> Vizio M70Q7 <> Oppo UDP-203 <> Amazon 4k Fire TV