So far I think it’s an excellent sounding amplifier, and it has tons and tons of power and drives my Hifiman HE-500 beautifully with tons of power to spare. Awesome sounding set up. Extremely musical and the time flies by when I listen to music while on the computer. I can hear very deep into the music and sometimes can pick out background details that I never heard through my old headphone amps. Acoustic guitars sound extremely real on a decent recording. Sometimes I don’t realize how late it is getting! Eventually I may upgrade the DAC to a balanced DAC eventually down the road. It sounds good as is currently. Using balanced cables with both headphones.