Cayin RU7 USB Dongle – Bringing classic 1-bit audio sound in a small package

Cayin’s RU7 USB dongle DAC and headphone amplifier uses technology normally found in high-end audio CD players and DACs. I put it through its paces with IEMs and full-sized headphones, as well as compare it to the RU6 and Luxury&Precision W4. Thank you to NativeDSD for sponsoring this review. Check out their extensive catalog of high-quality music.