The latest USB dongle DAC-AMP from xDuoo has arrived today and it has an output power of 270mW@32ohm from its 4.4mm balanced output. This makes it the most powerful USB dongle DAC-AMP on the market.
xDuoo Link2 Bal uses two CS43131 as DAC chips, the chip S/N is 130dB, and the unit S/N is 127dB to ensure a clean and clear sound, rejecting noise and interference, and the decoding chip, amp, and digital receiving chip are all powered separately to further reduce distortion and noise floor of the output.
The Link2 Bal has a 4.4mm balanced output and a 3.5mm unbalanced output. With an independent amp circuit, using the TI LM27762 chip with a conversion efficiency of more than 85%, it provides ultra-low noise electricity, and the current output of up to 250mA is used to power the amp circuit, thus providing high precision and large output current drive capability to ensure dynamic output. Compared with the previous generation Link 2, the most direct change of Link2 Bal is the addition of a balanced port. Besides, when it comes to the output power Xduoo is most proud of, Link2 Bal has reached a single-ended 125mW@32Ω and balanced with an amazing level of 270mW@32Ω.
The Turbo mode adjusts to adapt to different impedance headsets. The USB mode switch is compatible with Switch and other devices, allowing players to also have HiFi in the games.
xDuoo Link2 Bal has 2.5D double-sided glass, the whole body is CNC processed, there are no screws on the surface of the body. The surrounding surface is sandblasted, oxidized, and coluored.
DAC chip: Dual CS43131
Input port: Type-C USB
Output port: 3.5mm+4.4mm
Output Power: 3.5mm: 125mW@32ohm – 4.4mm: 270mW@32ohm
Sample rate support: PCM – 16-32Bit/44.1-384kHz DSD – DSD64-256
Frequency response: 20Hz-20kHz(+0.5dB)
THD+N: 0.001%1kHz (3.5 Headphone AMP) – 0.0007%1kHz (4.4 Headphone AMP)
SNR: 123dB (3.5 Headphone AMP) – 123dB (4.4 Headphone AMP)
Crosstalk: 3.5 Output: >77dB – 4.4 Output: >120dB