Dual WM8741 Dac Chips used. Fully discrete output with no opamps in DAC. USB support to 96KHz/24bit. Coaxial / Optical inputs 192KHz/24bit. Custom Alps Volume control with headphone amp. WM8805 for SPDIF with low jitter 50PS. 6 groups of internal power supplies with dedicated DC. Digital/Analogue have separated isolated power regulators. High quality parts from Vishay/Toshiba/Hitachi/Nover. No Feed Back design with no caps for filtering.