Let me again summarize what's going on with the blind leading the blind.
- Saltgrass: you are the one that is confusing other people. Most of Netflix's 5.1 is dolby digital plus --- which is compatible to the original dolby digital. Only a small number of brand new stuff have dolby atmos. New big budget movies have atmos. TV shows --- NO.
- Anif: Stop complaining about how the old realtek hd audio manager "worked". Your motherboard never came with realtek hd audio manager. And even if your asus motherboard did come with realtek hd audio manager --- you DIDN'T install it anyway because Asus has always have BRANDED realtek hd audio manager and BRANDED realtek audio console.
Which means that you installed some random realtek driver from other sources and it had "speaker fill". Asus motherboards with DTS doesn't come with speaker fill.
You installing the generic audio driver means that you lose half the features of your audio hardware and you may have problems with your microphone if you do a zoom call.
- Pat: Your SS3 has EQ --- so move the EQ around and see if the EQ works. If the EQ doesn't work, then there is something wrong with your whole system. It may be as simple as what I described on page 2 (allow exclusive control and not disabling audio effects). When you install your driver, did you use asussetup.exe --- that is a MUST, you CANNOT use device manager to install. Run amoury crate to see if there is a newer driver available.