Particularly versatile, xDuoo's MH-02 is a tube preamplifier, headphone amplifier and USB DAC in one. Its preamplifier stage is equipped with a pair of 6J1 tubes for a warm, musical sound. The device's Class A buffer uses transistors to deliver high power output and greater sonic precision and dynamics. The MH-02 is thus also capable of accompanying the vast majority of headphones, thanks to an output power of 1300 mW at 32 Ω and three headphone outputs in 3.5 mm jack, 4.4 mm balanced jack and 6.35 mm jack formats. In addition to its stereo RCA input and output, the MH-02 features a USB-C digital input. This is associated with a CS43131 DAC chip capable of supporting high sampling rates, up to PCM 32 bit/384 kHz and DSD256, while ensuring low noise levels.