I love the product. Outstanding built quality. The audio quality is phenomenal. I don’t know if it can actually get any better. In classical music, I can clearly hear more instruments, subtle nuances, and layers that were hidden from me with the old headphone amplifier.
My current audio setup is as follows:
Streaming Tidal Direct on the Eversolo DMP A6 Master Edition with LPS, connected via USB cable to the Gustard A26 DAC, connected via XLR to the Gustard H26, headphones used Hifiman HE1000SE.
I can highly recommend the product from my own initial experience.