XD-02 is a portable headphone AMP that consists of USB DAC and AMP. USB accepts up to 24Bit/192KHz high resolution audio signal. It built-in a OP+BUF rchitecture, high-slew-rate , OCL(output capacitor-less) with Split power supply. It has 1 way coaxial signal output , 1 way Line Out/Line In, one 2-Setting Gain Switch , one Bass boost ON/OFF Switch . Its power supply is built-in a 4.2V li-polymer rechargeable battery.
Power Source: DC 4.2V built-in li-polymer rechargeable battery
Compliant OS: Win XP,Vista,Win7,Win8 (must install driver)
MAC OS X (do not need to install drivers)
Supported sampling: USB input: Maximum 192kHz/24bit
Output Power: 250mW(32Ω load)
Frequency Range: Audio In：10Hz~100KHz(±0.5dB)
USB In: 20Hz~20KHz(±0.5dB)
Bass Boost On: +3dB（low GAIN），+5 dB（high GAIN）。
THD+N: 0.006% （1KHz）
Suitable Earphone Impedance: 8Ω〜300Ω
Playback Time: >30H
Charging Time: <5H
Adopts XMOS chip for USB signal input, PC jitter-free USB Audio with Asynchronous Transfer Mode, provides I2S interface for decoding, can support up to 192KHz/24Bit USB signal, support WASAPI，ASIO，KS Kernel Stream Mode.
It adopts 3X Clock structure design, ensures the DAC to obtain a first class sound performance. 3 correspondence level clocks are high precision, individually control multiple of 44.1KHz, multiple of 48KHz and USB signal transmission, dedicated for USB asynchronous transmission, and reduced Jitter to undetectable level.
Adopts the professional DAC chip WM8740*2 .
Built-in a OP+BUF architecture, OCL(output capacitor-less) with Split power supply, ultra-low distortion, low noise, high-slew-rate for analog signal.
1 Bass boost ON/OFF Switch
1 way High-quality coaxial digital signal output
Rechargeable li-polymer battery with integrated charging system
Use aluminum-shielded case to prevent external interference noise
One 2-Setting Gain Switch to set GAIN according to the headphones
Manual * 1
XD-02 Unit * 1
USB Cable * 1
Warranty Card * 1