{"id":181922,"date":"2026-05-11T16:35:38","date_gmt":"2026-05-11T08:35:38","guid":{"rendered":"https:\/\/estore.vertexhk.com\/product\/%e3%80%90clearance%e3%80%91fiio-k9-desktop-dac-and-headphone-amplifier-fiio-k9\/"},"modified":"2026-05-12T12:46:02","modified_gmt":"2026-05-12T04:46:02","slug":"fiio-k9-desktop-dac-and-headphone-amplifier-fiio-k9","status":"publish","type":"product","link":"https:\/\/estore.vertexhk.com\/en\/product\/fiio-k9-desktop-dac-and-headphone-amplifier-fiio-k9\/","title":{"rendered":"FiiO K9 Desktop DAC and Headphone Amplifier (FIIO-K9)"},"content":{"rendered":"

High-performance dual-core, sound that touches your heart<\/h2>\n
The high-performance dual DAC chip ES9068AS processes the left and right channels separately. Enjoy your favorite playlists and immerse yourself in beautiful vocals in an instant.<\/div>\n
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Flagship-level ear amplifier technology<\/h2>\n

THX AAA 788+ headphone amplifier technology infuses the K9 with powerful driving force. It delivers 780mW of undistorted power at 1% of the output at 300\u03a9 and 2000mW at 1% of the output at 32\u03a9. Whether you’re using low-impedance or high-impedance headphones, you’ll experience exceptional audio performance.<\/p>\n

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Precision layout<\/h2>\n
The ingenuity is fully demonstrated in the PCB design, with power and signal sections placed separately and analog signal loops laid out independently, cleverly used to ensure the integrity of signal processing.<\/div>\n
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Ample power supply, stronger performance<\/h2>\n
A linear transformer paired with four 4700uF high-capacity capacitors extends the lifespan of the capacitors, providing a continuous power supply for the analog section.<\/div>\n
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Dual-mode clock management technology<\/h2>\n
It supports high-specification audio decoding, which can reproduce the sound of each track to the greatest extent, making you feel like you are there when listening to different music styles.<\/div>\n
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Bluetooth format<\/h2>\n
Equipped with the QCC5124 Bluetooth chip, it delivers a superior experience of high-fidelity sound quality and low latency for both audio and video entertainment.<\/div>\n
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Compatible with UAC1.0\/UAC2.0<\/h2>\n
Supports UAC1.0\/UAC2.0; devices that cannot install drivers can be used plug and play; devices that can install drivers have better compatibility!<\/div>\n
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Rich user interface<\/h2>\n
The K9 features USB, optical, coaxial, RCA, and Bluetooth input interfaces; 6.35mm and 4.4mm output interfaces; and five output signals, three output modes, and three hardware gain levels.<\/div>\n
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High quality material selection<\/h2>\n
The entire machine is made of aluminum alloy, and the body adopts an integrated stretching + CNC process, which combines precision and strength.<\/div>\n
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FiiO desktop amplifier’s signature volume knob<\/h2>\n
After ADC curve reconstruction, 120 volume levels were planned, which not only avoids the imbalance and noise of the left and right channels, but also gives you a precise and smooth experience when adjusting the volume.<\/div>\n
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Colorful lighting effects<\/h2>\n
The RGB indicator lights around the knob use different colors to represent different sampling rates or Bluetooth encoding formats.<\/div>\n
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Professional-grade parametric EQ<\/h2>\n

With the FiiO Control App, you can quickly switch between the 7 preset tuning styles of mainstream music on the K9; you can also finely adjust to your preferred listening style through 3 customizable PEQs for a better listening experience.<\/p>\n

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Compatible with FiiO Control APP<\/h2>\n
The K9 connects to your phone via Bluetooth and then to the app, allowing you to customize features such as filters, status indicators, EQ, and channel balance to your liking.<\/div>\n
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Multiple intelligent protection<\/h2>\n
Three intelligent protection circuits \u2013 overheat, overload, and DC protection \u2013 constantly monitor the K9’s high-energy operation, ensuring it runs smoothly without overheating, allowing you to enjoy high-quality music with peace of mind.<\/div>\n
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Multiple linking methods<\/h2>\n

\u2022 Connect to computers and laptops via USB
\n\u2022 Connect to mobile phones via USB-B to Type-C
\n\u2022 Connect to tablets, mobile phones, etc. via Bluetooth
\n\u2022 Connect to desktop streaming players
\n\u2022 Connect to professional amplifiers and active speakers<\/p>\n<\/div>\n<\/div><\/div>