XDUOO XD-01 24Bit/192KHz Coaxial Optical Decoder Stereo DAC Portable Headphone Amplifier

Features: XD-01 is a multi-functional portable headphone amp that consists of USB, coaxial, optical fiber decoding and amp. It accepts up to 24Bit/192KHz high resolution audio signal It has SRC function that can increase sampling up to 24bit/192KHz, and has one 2-Setting Gain Switch to set GAIN according to the headphones. Its power supply is built-in a 4.2V li-polymer rechargeable battery It adopts TI TAS1020B for USB signal input, PC jitter-free USB Audio with Asynchronous Transfer Mode, provides I2S interface for decoding, accepts up to 24Bit/96KHz high resolution audio signal It adopts CS8422 for SPDIF signal input, works at asynchronous transmission mode, provides I2S interface for decoding, accepts up to 24Bit/192KHz high resolution audio signal Adopts high-performance D/A chip: WM8740, accepts up to 192KHz/24Bit I2S signal, ultra-low distortion, low noise, high slew rate for analog Adopts high dynamic and current opamp from TI Company, current-feedback architecture, high slew rate, OCL(OUTPUT capacitor-less)with Split power supply SRC function can increase sampling up to 24bit/192KHz One 2-Setting Gain Switch to set GAIN according to the headphones Rechargeable li-polymer battery with integrated charging system Use aluminum-shielded case to prevent external interference noise Specifications: Power Source: DC 4.2V built-in li-polymer rechargeable battery Compliant OS: Win XP, Vista, Win7, Win8, for MAC OS X Supported sampling: USB input: Maximum 96kHz/24bit coaxial, optical input: Maximum 192kHz/24bit Output Power: 320mW(32 load) Frequency Range: Audio In:10Hz~100KHz(0.5dB) USB/SPDIF In: 20Hz~20KHz(0.5dB) Gain: +3/+9dB THD+N: 0.004% (1KHz) S/N: 104dB Suitable Headphone Impedance: 8~300 Playback time: >17H(USB/SPDIF In) >23H(AUX In) Charging Time: