FiiO K9 PRO Desktop Headphone Amplifier & DAC

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  • Flagship AK4499 DAC chip
  • Headphone Out: 6.35mm Single-Ended/4.4mm Balanced/4-pin XLR
  • MQA Decoding Support
  • Customised THX AAA Amplification Module
  • Hi-res PCM Decoding up to 32-Bit/768kHz (USB Input)
  • DSD Support up to DSD512 natively (USB Input)
  • Optical/Coaxial Input supports PCM up to 192kHz and DoP64
  • XMOS chip supporting dual-mode clock management technology
  • Hi-resolution Bluetooth Support with latest Qualcomm QCC5124 Chip
  • LDAC/AptX Adaptive/AAC/SBC and other hi-res Bluetooth Codec Support
  • Digital Inputs: Bluetooth/Coaxial/Optical/USB
  • Analog Input: 4.4mm/RCA
  • Lineout: RCA, Balanced XLR
  • Three-Level Gain Mode: Low, Medium, High
  • Linear Power Supply
  • App Control
  • Adjustable Volume Knob with backlight (for indicating active sample rate)
  • Multi-state selection & indication

In the Box

(to be confirmed)

  • FiiO K9 PRO Desktop Headphone Amplifier & DAC
  • 6.35mm to 3.5mm adapter
  • Power cable
  • Quick start guide

Clearance products


Leader Of Desktop DAC/AMP’s From FiiO

FiiO K9 Pro is going to be the leading product from the highly acclaimed “K” series of Desktop DAC/AMP’s from the brand. The series features some of the best products that FiiO has to offer including the K5 Pro, K3, and more.

Flagship-Grade Chipset For Flagship Product

The K9 Pro is equipped with legendary AKM AK4499EQ, renowned in the audio industry for its exceptional performance and unparalleled decoding capabilities, supporting up to 384 kHz and native DSD256 audio. And given its current scarcity, it is definitely a chip many are eager to experience.

Listen to true beauty THX AAA amplifier technology

The THX AAA 788+ chip used in the K9 Pro provides exemplary details and dynamics no matter if you are using low or high-impedance headphones. The K9 Pro can output up to 46Vpp transients when driving high-impedance loads, and up to ab undistorted 2W when pushing low-impedance loads. Compared to the original, the output power of the K9 Pro has increased by more than 50% with higher heat dissipation efficiency.

Clearly partitioned for smooth signal transmission

The PCB of the K9 Pro uses a partitioned layout, wherein not only the power supply and signals are separated, but the analogue signal loop is also put in an independent section, guaranteeing the integrity of the audio signal being processed.

Multiple Input/Output Options

The FiiO K9 Pro is a hub for all your audio needs. It features multiple audio input/output options that include RCA/Coaxial/Bluetooth/Optical/USB/4.4mm input ports. For output the device features line-out functionality via 4-Pin XLR balanced*2, RCA line-out and headphone output via 4.4mm/4-Pin XLR Balanced, and 6.35mm single-ended headphone output ports (that also supports 3.5mm jack with the included adaptor).

Lightening up the mood

The stainless-steel volume knob blends seamlessly with the aluminium alloy front panel to give a luxurious experience while controlling your music, The RGB indicator lights surrounding the volume knob can light up differently depending on the currently playing sampling rate.

Hi-Res Wireless Bluetooth Connectivity

The FiiO K9 Pro features wireless Bluetooth functionality with hi-res codecs support. It supports up to 96kHz bitrate streaming over a wireless Bluetooth connection thanks to the hi-res LDAC codec support. Along with LDAC, the K9 pro also supports AptX Adaptive, AAC, SBC wireless codecs.

App-control and Other Features

Built-in Bluetooth low energy (BLE) technology allows you to use the FiiO control App to control functions like channel balance, sleep timer, etc. at any time, even when not in Bluetooth mode.

The K9 Pro supports the unfolding of MQA tracks, allowing you to listen to high-resolution audio files that are no only reasonably sized, but also retain master-level sound quality that brings you directly into the recording studio.

Apart from the long list of features mentioned above the device also features a linear power supply for clean power management, FiiO Application support on smartphones (Bluetooth connections), and many more features. This can be your one point solution for all your high-end musical needs.


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