xDuoo XD-05 Plus is a portable “Desktop” amplifier with 1000mW of output power. It comes with a built-in 3.8V/5000mAh rechargeable li-polymer battery. It is integrated with XMOS XU208 and AK4493EQ chips which works in asynchronous transfer mode, support up to 32Bit/384kHz and DSD256 formats. It has multiple audio inputs from USB, Coaxial, Optical, Aux.

It has two active-low phase noise crystal oscillators which works with CPLD, reduced jitter to an undetectable level.

With built-in filter and high-efficiency power conversion circuit along with optimized LDO circuit through power supply to decoder chip, LPF, AMP, XMOS and digital receiver chip independently.

It comes with interchangeable OP-AMP which can be replaced by the user itself without any soldering need which in result will bring different sound signature suited for different headphones and earphones.

With the 05BL, it can become the Bluetooth DAC amplifier.