xDuoo X3II Digital Audio Player (DAP)

The xDuoo X3II is the successor to the xDuoo X3 and uses the AK4490 DAC chip, paired with an OPA1652 and LMH6643 chip configuration for the headphone amplifier. It comes with a 2.4-inch IPS screen, dual microSD slots, and two 3.5-millimeter outputs. The X3II has low noise and low distortion, can power demanding headphones, and has a bidirection Bluetooth support.

Specs:

• High-grade aluminum alloy CNC processing
• 2.4 in (6.1 in) IPS screen
• Inline remote control
• AK4490 DAC chip + OPA1652 + LMH6643
• Supports DSF, DFF, and ISO DSD; up to DSD128
• Supports DXD, FLAC, APE, WAV, ALAC, and AIFF lossless; up to 32 bit/384 kHz
• Supports MP3, AAC, WMA, and other music formats
• Supports CUE, M3U, and M3U8 files
• Supports album cover display and lyrics display
• 10 sections of EQ with 18 kinds of sound effects
• Bidirectional Bluetooth 4.0
• HiBy Link function
• USB DAC function
• USB audio output function
• Supports USB OTG to read and play music files from U disk
• Supports in-car play mode
• 256G TF card extension
• Output power: 210 mW (32 ohms, THD+N < 0.0015%)
• Frequency response: 20 Hz–20 kHz (+/- 0.15 dB)
• Crosstalk: > 75 dB
• S/N: >/= 114 dB
• THD+N: 0.0015% at 1 kHz (32 ohms at 1 kHz)
• Battery: 3.7V / 2,000 mAh
• Battery life: Approx. 13 hrs
• Charging time: < 3 hrs on quick charge, < 5 hrs on slow charge
• Size: 4 x 2 x 0.6 in (102.5 x 51.5 x 14.9 mm)
• Weight: 4 oz (112 g)

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