XDUOO LINK2 BAL MAX 2CS CS43131 DAC DSD256 4.4mm 3.5mm Headphone Amplifier (Green) The Link2 Bal has a 4.4 balanced output and a 3.5 unbalanced output, eliminating the need for adapters even if you have various headphones. It uses the TI LM27762 chip with a conversion efficiency of 85% or more to supply ultra-low noise electricity. By using a maximum current output of 250mA as the power supply for the amplifier circuit, it ensures high precision and large current drive capability, realizing dynamic output and auditory recovery. The Link2 Bal uses two CS43131 DAC chips, with an S/N ratio of 130dB for the chip and 127dB for the unit, eliminating noise and interference to achieve a clean and clear sound. In addition, by providing separate power supplies for the decoding chip, amplifier, and digital receiving chip, the distortion and noise floor of the output are further reduced. The SNR is up to 127dB, so you don't have to worry about the presence of background noise with most earphones. The LINK2 BAL supports up to PCM 32bit/384kHz and DSD256 native. This is a set of the amplifier body and cable. The original box is not included. It has been used only for testing and has no scratches.