Question about smart tv's and soundbars?

Just wondering if you connect a soundbar or speakers to your smart tv via optical cable will it allow you to use the tv's own sound setting like the EQ etc? When i connect via the 3.5mm headphone jack or RCA input it doesn't allow the sounds settings on the TV to be used. I see little point in only having... show more Just wondering if you connect a soundbar or speakers to your smart tv via optical cable will it allow you to use the tv's own sound setting like the EQ etc? When i connect via the 3.5mm headphone jack or RCA input it doesn't allow the sounds settings on the TV to be used.
I see little point in only having them available for the TV's on speakers as the quality is little better than a mobile phone and they'd make little difference.
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