Excellent sound KA5 headphone amps equipped with dual Cirrus Logic CS43198 Daces to give you a serious upgrade to your sound, supporting 32bit/768kHz and DSD512. User-friendly operation KA5 has a built-in MCU processor and also added an OLED display and physical buttons to make setting menus and playback display easier. Powerful, robust sound KA5 utilizes a 6-layer immersion-gold pcs as well as high-performance ultra-low noise op-amps. Compatible with lots of systems Portable USB DAC KA5 is compatible with various OSes like Android/iOS/Windows/Mac, you could use it to connect with your smartphones/computer/players.