The gold X3 (2nd Gen) from Fiio is a portable high resolution audio player and USB-DAC for audio enthusiasts. The unit features an audiophile grade architecture and premium components capable of playing files up to 24-bit/192 kHz in a variety of formats including native DSD, WAV, WMA, ALAC, FLAC, APE, AIFF, and more. The X3-II utilises a Cirrus Logic CS4398 DAC coupled to a finely tuned low-pass filter offering extremely low noise and phase distortion. Additionally, the tantalum capacitors in the analogue circuit provide minimal internal resistance for the best uncoloured sound. Dual crystal oscillators ensure the lowest jitter and highest precision playback of music at any sample rate, eliminating conversion artefacts.
The player offers a standard 1/8" / 3.5mm headphone output and a separate line out/digital (coaxial) out via 1/8" / 3.5 mm. The X3II has no on-board memory, but uses a microSD card slot supporting up to 128 GB. The 2600 mAh Li-polymer battery provides up to 11 hours of playback under normal conditions. The user interface (UI) offers six unique themes, while the classic scroll wheel and 2.0" TFT display offer easy navigation, which supports browsing and playback via folders, songs, albums, artists, genres, favourites, and playlists. The 10-band graphic AEQ and the 120-step digital volume control allow for custom tailored sound and levels.
The chassis is made of aluminium alloy and features a high reflectance fine-grain faceplate. The X3-II ships with a 3' / 1m high-current micro-USB data/charging cable, an 1/8" / 3.5mm coaxial S/PDIF adapter, a hard-shell case, two screen protectors (1 applied in-factory), and a set of three Bodywork stickers (USA flag, wood grain, and carbon fibre).
Features
- Song Playback - Supports Browsing and Playback via Folders:
- All Songs
- Albums
- Artist
- Genres
- Favourites
- Playlists
- Play Mode: Sequential, Shuffle, Loop Single, Loop All
- Resume After Power Off: Can resume from last song or last position before power off
- Library Management:
- Supports adding and managing favourites and playlists on player
- Supports deleting favourites, playlists, songs and folders on player
- Supports batch deletion
- Hibernation: Player can automatically enter hibernation for instant wake-up / playback with minimal battery drain
- Screen Saver: Custom defined screen timeout time
- CUE Sheet Supported: Supports splitting songs by CUE sheets and skipping though tracks within cue sheet
- Themes: 6 different built-in themes
- Playback Display: Supporting embedded / external / folder-based album art, lyrics and ID3 display
- Gapless playback supported
- Volume Control: 120 steps digital potentiometer
- Output Protection: Power supply safety control over analogue circuit
- Gain Setting: Switchable between high and low gain
- Equaliser: 10-band AEQ (±6 dB)
- Hearing Protection: Customisable max volume setting to protect hearing
- Balance: Max bias 5 dB L/R (0.5 dB increments)
- On / Off Transients: Output relay prevents on / off transients
- Headphone Detection: Playback pauses on headphone disconnection
- Internal Battery: 2600mAh 3.7V Li-polymer
- Playtime: >11 hours (32 ohms; normal volume with display off)
- Firmware upgrade via microSD card (formatted in FAT32 via the X3)
- Data Transfer: Micro-USB 2.0 high speed
Specifications
| Line Out | 1/8" / 3.5 mm (Shared line out / S/PDIF coaxial out) |
| Digital Output | 1/8" / 3.5 mm (Shared line out / S/PDIF coaxial out) |
| DAC | USB DAC: Supports up to 24-bit / 192 kHz and DSD (driver installation required) |
| Headphone | 1/8" / 3.5 mm |
| THD + N | <0.001% (1 kHz) |
| Frequency Response | 20 Hz to 20 kHz |
| Crosstalk | >102 dB (10 kOhms / 1 kHz) |
| Signal to Noise Ratio (SNR) | =114 dB (A-weight) |
| Dynamic Range | =101 dB |
| Line Output Level | 1.45 Vrms (10 kOhms / 1 kHz) |
| Output Power | Output Power 1: >224 mW (16 ohms / THD+N <1%) Output Power 2: >200 mW (32 ohms / THD+N <1%) Output Power 3: >24 mW (300 ohms /THD+N <1%) |
| Frequency Response | 20 Hz to 20 kHz |
| Signal-to-Noise Ratio (SNR) | =113 dB (A-weighted) |
| Output Impedance | <0.2 ohms (32 ohms) |
| Crosstalk | >74 dB (1 kHz) |
| THD+N | <0.001% (1 kHz) |
| Maximum Output Voltage | >7.2 Vp-p |
| Maximum Output Current | >75 mA (For reference) |
| Power | USB Charger: 5 VDC 2A (recommended) Computer USB Port: 450 mA |
| Battery Charge Display | Red light indicates, green light turns on after fully charged |
| Battery Display | Yes (accurate battery % readings)) |
| Battery Capacity | 2600 mAh, 3.7 V Li-polymer |
| Battery Life | >11 h (32 ohms; normal volume with display off ) |
| Charging Time | Computer USB Port: Approximately 8 hours 2 A USB Charger: Approximately 3 hours |
| Audio Formats | Lossless DSD: DSD64, DSD128 (.iso, .dsf & .dff) 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/64-bit WMA Lossless: 96 kHz/24-bit Apple Lossless: 192 kHz/24-bit Lossy Compression MP2, MP3, AAC, ALAC, WMA, OGG |
| Model Name | X3 (X3 2nd gen) |
| Colour | Gold |
| Material of Construction | Aluminium Alloy |
| Chipset | SoC: JZ4760B DAC: CS4398 LPF: OPA1642 OP: OPA1642+LMH6643 |
| Memory Capacity | 128 GB via microSD Card |
| Display | 2.0" TFT screen, 320 x 240 pixels |
| Drive Ability | 16 to 150 ohms |
| Volume Control | 120 steps digital potentiometer |
| Equaliser | 10-band equaliser (±6 dB) |
| Balance Control | 5 dB |
| Gain | Gain Low: 2.6 dB Gain High: 8.6 dB |
| Dimensions (L x H x D) | 3.8 x 2.3 x 0.6" / 96.7 x 57.7 x 16.1 mm |
| Weight | 4.8 oz / 135.0 g |
