Yulong DA10 Headphone Amplifier AK4497 768K DSD DAC Single-end/BalancedYulong DA10 Headphone Amplifier Key Features: De jitter process powered by proprietary FPGA, FIFO buffer, and PLL clock with Femto crystal Fully balanced, low impedance output DAC supporting PCM768 KHz and DSD 512 Fully balanced high current preamplifier with analogue volume control, bypassed in Pure DAC mode Full discrete and balanced, JFET input, DC coupled Class A headphone amplifier AK4497 DAC with 1. 7nV low noise regulator at reference voltage