FiiO K9 Desktop Headphone Amp/DAC - AKM Edition

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  • Flagship DAC combo AKM AK4191EQ + AK4499EX
  • Decoding chip: XMOS XUF 208
  • Amplifier: Dual THX AAA 788+
  • Dual-mode clock control
  • Latest Qualcomm Bluetooth (5.1) QCC5124 Chip with LDAC/aptX Adaptive and other high-res codec support
  • Three-Level Gain Mode: Low, Medium, High
  • Supports up to 768kHz/32bit PCM and DSD512
  • Outputs: 6.35mm / 4.4mm / XLR-4 / RCA / XLR
  • Inputs: Type-B / Type-C / OPT / COAX / RCA / XLR
  • App connectivity over Bluetooth
  • Truly balanced design
  • Dual-voltage liner transformer
  • Output power 1: L+R≥2000mW+2000mW 320 balanced/THD+N < 1%)
  • Output power 2: L+R≥780mW+780mW (3000 balanced/THD+N <1%)
  • SNR: ≥128 dB (A-weighted, UAC)
  • Noise floor: PO < 3uV (A-weighted, UAC); BAL< 5.7uV (A-weighted, UAC)
  • Output impedance: < 10 (32 Ohm load)
  • Dimensions: 200x224.5x72mm (excluding feet), Weight about 2660g


In the Box

  • FiiO K9 AKM Desktop DAC and Headphone Amplifier
  • Power cord
  • Headphone plug adapter (6.35mm to 3.5mm)
  • USB date cable
  • Feet Pads x 6
  • Fuse
  • Vertical stand tray
  • Quick start guide and Voltage selection card


Clearance products


AKM flagship DAC combo AK4191EQ + AK4499EX

The K9 AKM applies AKM's brand-new flagship DAC combo - AK4191EQ + AK4499EX. Based on the new design technology of totally separated digital and analogue sections, the DAC combo even incorporates the newly developed "DWA ROUTING technology" to improve the Signal to Noise Ratio and reduce noise from varieties of amplitude. The result is more realistic, detailed and natural sound transmission, as if you were there with the performing artists.

Refreshingly capable high-end amplifier

The FiiO K9 AMK’s ace up its sleeve is the THX AAA 788+amplifier, giving it an extraordinary 1% undistorted power output up to 780mW at 300Ω and up to 2000mW at 32Ω. No matter if you use low-impedance or high-impedance headphones, the K9 AKM will drive it with aplomb.

Multiple LDOs in multiple stages, truly stable power

The power stabilization and filtering within the audio circuit play a big part in ensuring excellent sound quality. Each stage of the audio circuit employs ultra-low-noise LDOs for voltage regulation.

Isolated digital and analogue section power supply, for purer sound

The digital and analogue portions of the K9 receive power separately to reduce interference between the two audio circuits, for pure and faithful reproduction of your music.

Electricity is the Robust power supply, ample power

The linear transformer is paired with 4 massive 4700uF capacitors to provide clean continuous power

Dual-mode clock management, even more improvement to the sound

Accurate and stable dual-mode clock management allows the K9 AKM to easily play back high-resolution audio with the greatest fidelity as if you were there with the performing artists.

High-res Bluetooth for all of your audiovisual needs

The K9 AKM employs the QCC5124 Bluetooth chip with support for LDAC/aptX HD/aptX Adaptive and other high-res Bluetooth codecs. With the K9 AKM, you can listen to music, watch videos, and play video games with high quality and low latency.
Bluetooth 5.1 with support for LDAC/atpX Adaptive/aptX HD/aptX/aptX LL/AAC/SBC

Compatible with UAC1.0/UAC2.0 – Highly adaptable

The K9 AKM supports both UAC1.0 and UAC2.0 modes, allowing you to use the K9 AKM with either devices that are simply plug-and-play or with devices that can work with the K9 AKM with an additional driver for even better compatibility. And the FiiO Control App allows you to easily switch between UAC1.0 and UAC2.0 modes.

Horizontal or vertical

The K9 AKM adopts the well-received design language of other FiiO desktop units, and features an all-aluminium construction made from an integrated streaming + CNC process to ensure the body’s strength and precise finish. And with the vertical stand, the K9 AKM can be used either vertically or horizontally, allowing it to become a versatile part of your desktop setup.

Volume knob with a weighty feel and convenient RGB light information  

The iconic, weighty FiiO volume knob is powered by ADC curve reconstruction to allow you to precisely and smoothly adjust through 120 levels of volume, with minimal noise and volume deviation between the left and right channels.

FiiO control app – Professional PEQ and more

Through the FiiO Control app, you can quickly switch between 7 music tuning styles preset on the K9 AKM. If the selected tuning style fits the music you are listening to, you can acquire a more vivid and pleasant experience. If the preset tuning style is not to you liking, the 3 self-define PEQ (Parametric Equalizer) designs will help to fine adjust to your favourite listening style.

You can connect the K9 AKM to your phone via Bluetooth, and with the addition of the FiiO control app you can get access to even more functionality. Adjust various settings such as 6 types of filters, status indicators, EQ, and channel balance to exactly your liking.


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