Can TV EQ adjust HomePod sound via eARC with Apple TV 4K?
If I use eARC with appletv 4K, will I able to adjust the sound going to my HomePod via tv EQ?
HomePod (2nd generation)
You can try in the Apple tv settings but you generally cannot adjust EQ on HomePods
Change Audio Settings on Apple TV 4K - Apple Support
if you have two HomePods the same model you can set up as stereo pair for better sound on Apple TV
Use HomePod with Apple TV 4K - Apple Support