State-of-the-art Delta Sigma DAC supporting USB PCM 384 and native DSD256 ,Dual Mono AKM chip, 120dB 768kHz/32-bit 2ch Premium DAC. Bluetooth 3.0 class 2 from Microchip supports HSP/HFP, A2DP, AVRCP, SPP, and iAP profiles and includes support for codecs such as SBC, aptX, and AAC. Full microprocessor Cortex control with memory retention. Invert display function. Five digital filters. Five digital inputs for complete system flexibility. Supports DSD native playback by ASIO2.1 and DoP method.