FiiO K9 - Headphone Amplifier with Built-in Digital-to-Analog Converter
The FiiO K9 is a headphone amplifier with a built-in digital-to-analog converter. The device features a six-stage fully balanced sound circuitry that minimizes cross-interference. With the use of THX AAA 788+ amplifiers, the K9 outputs 780mW into a 300-ohm load and 2000mW into a 32-ohm load with 1% distortion.
Features:
- Balanced circuitry
- THX AAA 788+ amplification technology
- 2 x ES9068AS DAC
- Output Power: 2W at 32 ohms and 780mW at 300 ohms, with 4.4mm balanced output
- Improved power supply with low noise levels
- RGB backlight with PCM/DSD playback format indication and input mode
- Bluetooth 5.1 support and LDAC/aptX HD/aptX Adaptive codecs
- 2 levels of gain
- Balanced outputs: 4.4mm and XLR-4
- Aluminum chassis
The Fully Balanced Analog and Digital Circuitry
The K9 features a six-stage sound circuitry with truly balanced analog and digital sections, which helps reduce cross-interference and reproduce music with maximum accuracy.
High-Quality Balanced Amplification
The K9 uses the same THX AAA 788+ amplifiers as the K9 PRO, providing 780mW of power into a 300-ohm load with 1% distortion, and 2000mW into a 32-ohm load with 1% distortion. This ensures consistent amplification for headphones with a wide range of impedance and, most importantly, allows you to experience the musicality that will touch your heartstrings.
Rich and Delicate Sound
The left and right channels are equipped with high-performance ES9068AS DAC, known for its accurate timbre reproduction and rich and delicate sound. With this DAC, you can rediscover your music.
High-Precision Decoding
The XMOS XUF208 decoder chip uses dual clock control to handle various music formats with ease, allowing you to easily listen to many audio formats.
RGB Indication
The RGB indicators can display individual and mixed colors with a unique light flow effect when the power is turned on/off or the input signal is switched. The dazzling lighting effects will add the necessary flair to your desk.
Advanced Device Protection System
Protection systems against overheating, overload, and short circuit ensure that the K9 always performs at its best, allowing you to enjoy listening without worrying about the device.
High-Quality Power Supply
The K9 has a power supply design consisting of multiple independent cascades, with the voltage of each cascade regulated by low-dropout regulators (LDOS). This power supply design allows for powerful and clean power delivery for high-quality listening.
Bluetooth
The K9 uses the QCC5124 Bluetooth chip, which provides support for high-resolution codecs such as LDAC, aptX HD, and aptX Adaptive, allowing you to listen to Hi-Res audio wirelessly. The Bluetooth 5.1 version ensures a stable and responsive connection.
Multifunctional Controls
The front panel button controls the switching between 5 different inputs with a smooth light effect, indicating when the input is switched and ready for operation.
2 Levels of Amplification
High and low levels of hardware amplification allow you to easily adjust the K9 to work with headphones of different impedance and sensitivity, providing rich and stable listening.
Design
The K9 has a fully aluminum alloy construction, carefully processed using CNC machines and other technological processes. Its elegant black color is perfectly complemented by the RGB backlight, creating a luxurious look. A special stand is included, allowing you to vertically mount the amplifier.
Included Accessories:
- Amplifier with DAC
- Power cable
- USB cable
- 3.5mm to 6.3mm adapter
- Fuse
- 6 soft feet
- Vertical stand
- Documentation.