1. Киришүү
The FiiO K5 Pro is a high-performance desktop Digital-to-Analog Converter (DAC) and headphone amplifier designed to elevate your audio experience. It features advanced decoding capabilities and a robust ampөмүр берүү сtage, making it suitable for a wide range of headphones and audio setups. This manual provides detailed instructions for setting up, operating, and maintaining your K5 Pro.

Figure 1: FiiO K5 Pro Desktop DAC and Headphone Ampөмүрлүү
2. Продукциянын өзгөчөлүктөрү
- High-Performance DAC & USB Decoding: Equipped with an ES9038PRO DAC chip for 32-bit processing and an XUF208 USB decoding chip, supporting up to 768kHz and DSD512 inputs.
- Ар тараптуу киргизүүлөр: Supports Coaxial, Optical, and RCA line-in inputs. Optical and Coaxial inputs support up to 192kHz.
- Бир нече чыгуулар: Features a 6.35mm (1/4 inch) headphone output and RCA line-out outputs. The RCA line-out signal is adjustable up to 2Vrms, allowing connection to active speakers or external ampаман калгандар.
- Powerful Headphone Ampжашоо: Delivers up to 1.5W of total power output into a 32Ω load, and up to 20Vpp at 300Ω, capable of driving both low and high impedance headphones.
- Көлөмдү так көзөмөлдөө: ADC volume adjustment ensures smooth, fine-increment volume changes without undesirable noise or channel imbalances, accommodating various headphone sensitivities.
3. Орнотуу нускамалары
3.1 Пакеттен чыгаруу жана жайгаштыруу
Carefully remove the FiiO K5 Pro from its packaging. Place the unit on a stable, flat surface away from direct sunlight, heat sources, and excessive moisture. Ensure adequate ventilation around the device.
3.2 Кубатты туташтыруу
- Connect the provided power adapter to the 'POWER IN DC 15V' port on the rear panel of the K5 Pro.
- Кубат адаптерин ылайыктуу розеткага сайыңыз.
3.3 Киргизүү байланыштары
The K5 Pro offers multiple input options:
- USB IN: Connect your computer or compatible device using a USB cable to the 'USB IN' port for high-resolution audio playback.
- КОАКСИАЛДУУ: Use a coaxial cable to connect to digital audio sources.
- ОПТИКАЛЫК: Use an optical (TOSLINK) cable to connect to digital audio sources.
- LINE IN (RCA): Connect analog audio sources using RCA cables to the 'LINE IN' ports.

Figure 2: Rear panel showing various input and output connections.
3.4 Чыгуу байланыштары
- Headphone Out (6.35mm): Plug your headphones into the 6.35mm jack on the front panel. A 3.5mm adapter may be used for headphones with smaller plugs.
- LINE OUT (RCA): Connect to active speakers or another ampRCA кабелдерин колдонуу менен көтөргүч.
4. Иштөө нускамалары
4.1 Күйгүзүү/өчүрүү жана үндү башкаруу
The large knob on the front panel serves as both the power switch and volume control. Rotate the knob clockwise until it clicks to power on the device. Continue rotating clockwise to increase volume, and counter-clockwise to decrease volume. Rotate counter-clockwise until it clicks to power off.
4.2 Киргизүүнү тандоо
Use the 'INPUT' toggle switch on the front panel to select your desired audio source. The switch positions correspond to different inputs:
- 'U' (USB): For USB input.
- 'L' (Line In): For RCA Line In.
- 'S' (SPDIF): For Coaxial and Optical inputs.
4.3 Табышты тандоо
The 'GAIN' toggle switch allows you to adjust the amplification level to match your headphones' impedance and sensitivity. There are three gain levels:
- Төмөн киреше
- Орто киреше
- Жогорку пайда
Select a lower gain for sensitive headphones and a higher gain for demanding, high-impedance headphones.

Figure 3: Front panel showing volume knob, input, and gain switches.
4.4 RGB Light Indicator
The RGB light around the volume knob indicates the current sample rate of the audio being played:
- Көк: 48 кГц жана андан төмөн
- Жашыл: 48кГц жогору
- Кызыл: DSD форматы
Видео 1: Бүттүview of the FiiO K5 Pro's appearance and key features, including the RGB light indicator and various input/output options.
5. Техникалык тейлөө
To ensure the longevity and optimal performance of your FiiO K5 Pro, follow these maintenance guidelines:
- Аппаратты таза, жумшак, кургак чүпүрөк менен сүртүңүз. Катуу химиялык заттарды же абразивдүү материалдарды колдонуудан алыс болуңуз.
- Түзмөктү өтө жогорку температурага, нымдуулукка же түз күн нуруна дуушар кылбаңыз.
- Ашыкча ысып кетүүнүн алдын алуу үчүн туура желдетүүнү камсыз кылыңыз.
- Аппаратты түшүрүүдөн же катуу таасирлерден сактаныңыз.
6. Кыйынчылыктарды
If you encounter issues with your FiiO K5 Pro, refer to the following common troubleshooting steps:
- Үн жок:
- Check all cable connections (power, input, headphones/speakers).
- Ensure the K5 Pro is powered on and the volume is not at minimum.
- Verify the correct input source is selected using the 'INPUT' switch.
- Confirm that your computer's audio output is set to the FiiO K5 Pro.
- Бурмаланган үн:
- Reduce the volume on both the K5 Pro and your source device.
- Adjust the 'GAIN' switch to a lower setting if your headphones are very sensitive.
- Ensure the audio source file is not corrupted or of low quality.
- Үзгүлтүктүү аудио:
- Кабелдик туташуулардын боштугун текшериңиз.
- Try a different input cable or port.
- Ensure no other devices are interfering with the signal (e.g., electromagnetic interference).
If problems persist, consult the FiiO official support resources or contact customer service.
7. Техникалык шарттар
| Өзгөчөлүк | Спецификация |
|---|---|
| Продукциянын өлчөмдөрү | 4.72 x 1.97 x 5.12 дюйм |
| Салмагы | 15.38 унция |
| DAC чип | ES9038PRO (32-bit processing) |
| USB Decoding Chip | XUF208 |
| Max USB Input Support | 768kHz/32Bit, Native DSD512 |
| Coaxial/Optical Input Support | 192 кГц чейин |
| Наушник чыгаруу | 6.35 мм (1/4 дюйм) |
| RCA Line-Out | Adjustable up to 2Vrms |
| Максималдуу кубаттуулук (32Ω) | 1.5 Вт |
| Макс томtage Output (300Ω) | 20Vpp |
| Power Input | DC 15V |
| Interface Type | Coaxial, Headphone, Optical, RCA, USB |
8. Кепилдик жана колдоо
The FiiO K5 Pro comes with a standard manufacturer's warranty. For detailed warranty information, please refer to the warranty card included with your product or visit the official FiiO website. For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact FiiO customer support through their official channels.
Always ensure you are using official FiiO accessories and following recommended guidelines to maintain warranty validity.





