X5 3RD GEN
Android based, Mastering quality
Lossless playback portable music player.
Features
- DAC AK4490 X2
- Quad-core RK3188 processor
- 32GB built-in storage
- Up to 512GB of expanded micro SD storage
- Supports 2.5mm TRRS balanced output
- 2 operating modes
- Bluetooth 4.0
- 2.4GHz Wi-Fi
- 3.97 in. touchscreen
Specifications
| Name / Model No. | X5 3rd gen（FX5321） | Operating System | Deeply customized Android 5.1.1 |
| CPU Model | RK3188 | No. of cores | 4 |
| CPU operating frequency | 1.4GHz | DAC | AK4490 |
| Keyboard | Virtual QWERTY keyboard | Input method | Touchscreen |
| Special features | Dual Android / Pure Music operating modes, symmetrical remappable keys, USB DAC, docking connector, etc. | User Interface | Android 5.1.1 / FiiO Music |
| Chips used | SoC: RK3188， DAC: AK4490x2, LPF: OPA1642x2, OP: Customized OPA426x2 | ||
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Connectivity |
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| WIFI | 2.4GHz IEEE802.11 b/g/n standards supported | Bluetooth | Bluetooth V4.0，aptX supported |
| USB | Micro USB2.0 | ||
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Display screen |
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| Display size | 3.97 inches | Number of colours | 16.7 million colors |
| Display type | IPS TFT | Viewable angle | 178° |
| Resolution | 480×800 | Pixel density | 233 ppi |
| Touchscreen | Yes | ||
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Storage |
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| RAM | 1GB | Total ROM | 32GB |
| Storage expansion type | Micro SD | ROM available to user | About 26G |
| Maximum storage expansion | 512GB (256GB x 2) | ||
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Buttons and ports |
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| Buttons | Side buttons + side volume wheel+ touchscreen | Custom key mapping | N/A |
| Headphone out | 3.5mm standard headphone output jack | Balanced output | Supported (2.5mm balanced headphone jack) |
| Line out | Standard 3.5mm port(shared LO/Coaxial out) | USB connection | Micro USB2.0 (charging / data transfer / docking function / USB DAC) |
| Digital Coaxial out | Standard 3.5mm port(shared LO/Coaxial out) | ||
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General |
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| Color | Titanium/Black | Dimensions | 114.2 mm× 66.2 mm× 14.8 mm |
| Weight | 186g | Volume control | 120 steps +/- button control (via analog-domain controller |
| Recommended headphone impedance | 16~150 Ω | Equalizer | 10-band EQ (±6dB), 9 presets+custom preset, freestyle EQ curve drawing (to be added in the future), ViPER4 equalizer (to be added in the future) |
| Bass boost | N/A | Treble boost | N/A |
| Balance control | 10 dB | Gain control | Low/High |
| USB DAC | Up to 192kHz/24bit supported | ||
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Power specifications |
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| USB power adapter | DC 12/1.5A, 9V/2A, 5V/2A recommended | Battery | Internal 3400 mAh High-voltage quick charging Li-polymer battery |
| Charging indication | via LCD display and pulse LED | Charging time | ＜2 h (DC 12V/1.5A) ＜3 h (DC 5V/2A) |
| Battery indication | Yes (accurate battery % readings) | ||
| Battery Life & Test Conditions | |||
| 3.5mm headphone output：>10 h | |||
| Volume | 46 | Gain | High |
| Load | M3 open earbuds (27 Ω) | Screen | OFF |
| Test File | MP3 44.1kHz/16bit | EQ | OFF |
| 2.5mm TRRS balanced headphone output：≥8 h | |||
| Volume | 48 | Gain | High |
| Load | 32Ω | Screen | OFF |
| Test File | MP3 44.1kHz/16bit | EQ | OFF |
| Battery life test file download link | http://pan.baidu.com/s/1sls0P5r | ||
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Others |
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| Firmware Upgrade | supported both via zip file and OTA | Font size | Changeable |
| Third-party apps support | No limit (recommended to install the apps listed on FiiO Marketplace) | ||
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Line output specifications |
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| THD+N | ＜0.0009% (1 kHz/10kΩ) | SNR | ≥120 dB (A-weighted) |
| Frequency response | 5 Hz~55 kHz（-3dB） | Dynamic range | >117 dB |
| Channel separation | ＞98 dB (1 kHz) | Line level | ＞1.8Vrms |
| Headphone out specifications (3.5mm headphone out jack) | |||
| Output power 1 | ≥480 mW（16Ω / THD+N＜1%) | Output impedance | ＜1Ω (32Ω loaded) |
| Output power 2 | ≥250 mW（32Ω /THD+N＜1%) | Channel separation | ＞73 dB (1 kHz) |
| Output power 3 | ≥28 mW（300Ω / THD+N＜1%) | THD+N | ＜0.003% (1 kHz) |
| Frequency response | 5 Hz~55 kHz（-3dB） | Peak output voltage | ＞8 Vp-p |
| SNR | ≥115 dB (A-weighted) | Max. output current | 250mA (For reference) |
| Balanced headphone out specifications (2.5mm TRRS headphone out jack) | |||
| Output power 1 | ≥400 mW（16Ω / THD+N＜1%) | Output impedance | ＜3Ω (32Ω loaded) |
| Output power 2 | ≥240 mW（32Ω /THD+N＜1%) | Channel separation | ≥98 dB (1 kHz) |
| Output power 3 | ≥26 mW（300Ω / THD+N＜1%) | THD+N | ＜0.003% (1 kHz) |
| Frequency response | 5 Hz~55kHz（-3dB） | Peak output voltage | ＞7.5 Vp-p |
| SNR | ≥111 dB (A-weighted) | Max. output current | ＞250 mA (For reference) |
| File format support | |||
| Lossless: |
DSD：DSD64/128（".iso", ".dsf", ".dff"） |
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| Lossy compression: |
MP3, AAC, WMA, OGG... |
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