They claim it offers the following advantages:
Looks impressive, but will it provide better sound quality compared to what I'm getting now, connecting my headphones (Beyerdynamic DT990 250 Ohm) to an old Denon AVR-1602 receiver which is connected to my PC digital coaxial out? If sound quality via Audio Boost (or similar solutions by other brands) isn't better, then Gigabyte boards (which don't have anything similar) are again candidates.
Because the complete audio circuitry is isolated from other features, you'll enjoy less interference and more stability. The built-in headphone amplifier allows you to use studio-grade headgear and get the most amazing sound quality out of your gaming PC.
Studio level Integrated 600Ω Headphone amplifier
Gold-flashed audio jacks for pure audio signals
EMI shielded audio codec & amplifier
High quality audio capacitors
ALC 1150 -> Unamplified signal -> OPA1652 amplifier -> High quality audio capacitors -> Amplified & filtered signal -> Gold plated connectors
Looks impressive, but will it provide better sound quality compared to what I'm getting now, connecting my headphones (Beyerdynamic DT990 250 Ohm) to an old Denon AVR-1602 receiver which is connected to my PC digital coaxial out? If sound quality via Audio Boost (or similar solutions by other brands) isn't better, then Gigabyte boards (which don't have anything similar) are again candidates.