FIIO X1II (X1 2nd gen)

FIIO X1II (X1 2nd gen) - X1 2nd gen

FIIO X1 2nd Gen Bluetooth high resolution lossless Portable music player


  • Bluetooth: Bluetooth V4.0 Dual Model Bluetooth V4.0
  • Touch wheel: Supported
  • In-line Remote Control: Supported (Does not support volume control of Apple Earpods)
  • Firmware upgrade: Via micro SD card
  • External Storage: 256GB Micro SD card supports up to 256GB
  • Data transfer: USB2.0 High Speed
  • Song playback: Supporting browsing and playback via folders, “all songs”, albums, artists, genres, “Favorites” and playlists
  • Play mode: Sequential/ Shuffle/ Loop single/Single/Loop all
  • Resume after power off: Can resume from last song or last position before poweroff
  • Library management: Supports adding and managing favorites, playlists on-player; supports deleting favorites, playlists, songs and folders on-player; supports batch deletion
  • Hibernation: Player can automatically enter hibernation for instant wakeup / playback with minimal battery drain
  • Screen saver: Custom defined screen timeout time
  • Display brightness: Adjustable
  • Cue sheet support: Support splitting songs by CUE sheets, skipping through tracks within cues sheet, fast forward and rewind
  • Album cover: Full screen display option and Normal display option
  • Playback display: Supporting lyrics and ID3 display
  • Playback interval: Gapless playback (to be supported by future firmware) / Fade in & out/off
  • Volume control: 100 steps digital potentiometer
  • Delete current file: Supported (single track CUE file deletion not supported)
  • Output protection: Automatic power off when output current is abnormal
  • Output selection: Line out/Headphone
  • Volume setting: Customizable volume setting when power-on
  • Hearing protection: Customizable max volume setting to protect hearing
  • Balance: L10~R10
  • On/off transients: MOS switch and low-distortion analogue switch SGM3712 prevent on/off transients
  • Port detection: Automatically pause music playback on headset disconnect
  • Internal battery: 1800mAh 3.7V Li-polymer
  • Charging current: up to 500mA via computer USB port, up to 1.5A via 2A USB charger (charging time approx.3h)
  • Play time: Approx. 12h with headphone out (can be improved with future firmware update), 15h on Bluetooth
  • Chips used: SOC lngenic JZ4760B, DAC: PCM5242,
  • Headphone amplifier chip: ISL28291, LPE: OPA2322

General Specifications

  • Model/Number:  X1 2nd gen / FX1221     
  • Headphone out (PO):  3.5mm headphone output jack
  • Headphone Impedance Range: 16~100 Ω
  • Dimensions: 97mm×55.5 mm×12 mm      
  • Volume control type: 100 steps digital potentiometer
  • Weight: 102 g      
  • Display Screen:  TFT 320×240
  • Treble: N/A
  • Analog Audio Output Jack(LO): 3.5 mm headphone output jack
  • Balance:  5 dB
  • Equalizer: 7-band equalizer (±6dB)
  • Chips used: SoC: JZ4760B,   DAC: PCM5242,    LPF: OPA2322,    OP: ISL28291

Partial Performance Parameters for Line Output

  • THD+N: ≤ 0.003% (1 kHz)
  • SNR: ≥115 dB  (A-weighted)
  • Frequency Response: 5 Hz~60 kHz (-3dB)     
  • Dynamic range: ≥107 dB
  • Crosstalk: ≥ 101 dB (10 KΩ/1 kHz)   
  • Line output Level: 1.7 Vrms (10 KΩ/1 kHz)

Partial Performance Parameters for Headphone Output

  • Output Power 1: > 100 mW (16 Ω/THD+N1%)
  • Output Power 2: ≥ 70 mW (32 Ω/THD+N1%)
  • Output Power 3:≥ 8 mW (300 Ω/THD+N1%)
  • Output Impedance: 32Ω loaded
  • THD+N: ≤ 0.003% (1 kHz)
  • Crosstalk: ≥72 dB (1 kHz)
  • Frequency Response: 5 Hz~60 kHz (-3dB)
  • MAX output voltage: 4.0 Vp-p
  • SNR: ≥113 dB (A-weighted)
  • MAX output current: 130 mAFor reference

Power and Battery

  • Power: Recommend DC5V 2A
  • Battery Capacity: 1800 mAh
  • Charge Display: Red light indicates, green light turns on after fully charged
  • Battery Display: Yes
  • Battery Life: 12 h
  • Charging Time: 3 h (DC5V 2A)

Audio Format Supported


  • APE(Fast):  192 kHz/24 bit;
    APE(Normal):  96 kHz/24 bit;
    APE (High): 96 kHz/24 bit;
    FLAC: 192 kHz/24 bit;
    WAV: 192 kHz/32 bit;
    192 kHz/32 bit;
    Aif:192 kHz/24 bit;
    WMA Lossless: to be supported by future update;
    Apple Lossless: 192 kHz/24 bit;

Lossless compression

  • Frequency Response diagram of curves.
    Test condition
    Play -5 dB sinusoidal signal, VOL=MAX, Lineout (10kΩ loaded)
    Blue curve: Left channel, Red curve: Right channel


  • 1m high-current micro USB data / charging cable
  • Transparent Clear case:
  • 2pcs Screen protector (1 applied in factory)
  • 2sets Bodywork sticker
  • Hi-Res sticker
  • Fiio X1II

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  • Views: 16322
  • Brand: FiiO
  • Product Code: X1 2nd gen
  • Availability: In Stock
  • $120.00

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Tags: FIIO X1II (X1 2nd gen), Bluetooth V4.0, Dual Model Bluetooth