Xi-2 is a portable headphone amplifier which can be DAC for iPhone/iPod/iPad series. It accepts up to 16Bit/48KHz asynchronous USB DAC function. It built-in a OP+BUF architecture, high-slew-rate, OCL (output capacitor-less) with Split power supply. It has 1 way coaxial signal output, 1 way Line Out, 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
Output Power: 150mW (32Ω load)
Supported sampling: USB input: Maximum 48kHz/16bit
Frequency Range: Audio In：10Hz~100KHz(±0.5dB)
USB In: 20Hz~20KHz(±0.5dB)
Bass Boost On: +3dB (low GAIN), +6dB (high GAIN)
THD+N: 0.001% (1KHz)
Suitable Earphone Impedance: 8Ω〜300Ω
Playback Time: >10H
Charging Time: <8H
Direct digital audio data transfer from iPod/iPhone/iPad.
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 48KHz/16Bit USB signal, support WASAPI，ASIO，KS Kernel Stream Mode.
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 way High-quality coaxial digital signal output
1 way High-quality Line Out,
One 2-Setting Gain Switch to set GAIN according to the headphones
1 Bass boost ON/OFF Switch
Rechargeable li-polymer battery with integrated charging system
Use aluminum-shielded case to prevent external interference noise