Appearance size: 63x123x16.9mm
Display: 3.5 inch / IPS screen / OGS structure resolution of 480x320
Body material: 6 series aluminum-magnesium alloy
Rear cover: rosewood
Master: 1812C
DAC: AK4414 32bit decoder chip
Crystal: ultra-low phase noise -155db active crystal
Operational Amplifier: EXCELS-O
Headphone AMP: EXCELS-A
Coprocessor: ICE40LP1K-QN84
Power Management Chip: AXP192
PCB: 6 layers 3U Immersion gold Matte black
Inductance: low resistance large current metal alloy inductor
Analog circuit filter capacitor: silver military tantalum capacitors
Button, volume button: ALPS long-life series
Capacity: 32GB 24bit ECC FLASH
Expansion capacity: 256GB micro SD card (TF)
Use the charger Specifications: DC voltage input range 4.8-5.2V, the maximum output power adapter Recommended 1.5A and above adapter
Battery type: lithium battery
Battery capacity: 3000mAh
Life time: 11h (off screen normal volume non-high rate file single-ended output)
Setting parameters
Adapter headphone impedance: 8-600ohm (600ohm headphones need to balance the output in order to better drive)
EQ adjustment: 6 kinds of style adjustment
HP Output: Level 2 gain adjustment
Dop SPDIF: Support
Digital filter settings: 5 filter modes
Output phase setting: 0 degrees / 180 degrees
USB connection mode: MSC mode / Audio mode
USB DAC: The current firmware supports up to 96 kHz/ 16bit
USB Audio Delay Settings: Long Delay Mode / Short Delay Mode
USB power supply settings: USB power supply mode / self-power mode
DSD decoding settings: native DSD mode / DSD to PCM mode (in order to adapt to only support D2P decoder)
Line output part of the performance parameters
Distortion plus noise: <0.0013%
Signal to noise ratio :> 118db (single-ended)
Frequency response: 20Hz-20 KHz ± 0.5db
Channel resolution :> 98db 10K load
Line output level: 2Vrms
Headphone output part of the performance parameters
Output power 1: single-ended 200mW 16ohm, balanced 550mW 16ohm
Output Power 2: Single-ended 125mW 32ohm, balanced 360mW 32ohm
Output Power 3: Single-ended 13mW 300ohm, balanced 53mW 300ohm
Frequency response: 20Hz-20 KHz ± 0.5db
Signal to noise ratio :> 119.5db (balanced)> 118db (single-ended)
Output Impedance: Single 2.2ohm Balance 4.4ohm
Channel resolution :> 113db 32ohm load (balanced)> 75db 32ohm load (single-ended amp output)
Distortion plus noise: <0.0016% (32ohm load)
Output voltage: single-ended 2Vrms balanced 4Vrms
Maximum output current: 300mA 8ohm
Support audio formats: APE AAC ALAC FLAC WAV MP3 WMA DFF DSF AIFF SACD-ISO
Audio Interface: 3.5mm headphone jack, 3.5mm line output (LO) interface / 3.5mm coaxial digital output interface, 2.5mm balanced headphone jack, USB interface (data mode / USBDAC mode)
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