FiiO Desktop DAC and Headphone Amplifier - K9 AKM

You may also like

AKM flagship DAC combo AK4191EQ+AK4499EX | Newly added Type-C port THX AAA 788+ amplifier | Dual-mode clock management | QCC5124 Bluetooth LDAC/aptX Adaptive and other high-res Bluetooth codec support | App connectivity Truly balanced design | Dual-voltage linear transformer | Variety of inputs and outputs
Note: product drawings are for reference only, all in kind shall prevail
* Pictures are for reference only. The actual product may vary.

Selling points

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 analog 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.

High-end amplifier Refreshingly capable
The FIIO K9 AKM'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.

Precisely designed

Electricity is the mother of sound

Dual-mode clock management Even more improvement to 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.
* Supports up to 768kHz/32bit PCM and DSD512

High-res Bluetooth Adept at 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, supported formats: LDAC/aptX Adaptive/aptX/aptX HD/aptX LL/AAC/SBC

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.
*UAC1.0 for PS5 and other device support
Compatible with UAC1.0/UAC2.0 Highly adaptable

Comprehensively capable No matter where you look

The K9 AKM adopts the well-received design language of other FIIO desktop units, and features an all-aluminum construction made from an integrated stretching + 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.
Neatly handsome Horizontal or vertical

A weighty feel For a weighty sound
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.

Not only do the RGB lights around the knobs give the K9 AKM and the desk space around it some fun personality, they also conveniently indicate the current audio sampling rate and Bluetooth codec.
Light it up Let the high-res music commence

Professional PEQ For what you love
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 your liking, the 3 self-define PEQ (Parametric Equalizer) designs will help to fine adjust to your favorite listening style.
*This function is only valid for Bluetooth decoding.

You can connect the K9 AKM to your phone via Bluetooth, and with the addition of the FIIO Control app you 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.
*EQ only works in Bluetooth mode.
To show off your skills One app is enough

Multiple intelligent protection systems Always ready to go
Three intelligent protection systems – preventing overheating, overload, and DC protection – constantly make sure that the K9 AKM delivers high-energy music without wearing itself out. Listen worry-free with the K9 AKM!

Immerse yourself in fabulous music

Abundant accessories
① K9 AKM*1 ② Power cord*1 ③ Headphone plug adapter*1 ④ USB data cable*1 ⑤ Feet pads*6 ⑥ Fuse*1 ⑦ Stand*1 ⑧ Quick start guide*1 ⑨ Voltage selection card*1 ⑩ Warranty card*1
| General Specifications | |
|---|---|
| Name/Model | K9 AKM |
| Hardware Scheme | DAC: AK4499EX+AK4191EQ, USB decoding: XUF208, Bluetooth: QCC5124, LPF: OPA1612*2, Volume IC: NJU72315*2, AMP: THX AAA788+*2, transformer: linear transformer |
| color | Black |
| Volume Control Type | Analog Potentiometer (ADC sampling) |
| Weight | Approximately 2660g |
| Channel Balance | L12 to R12 (0.5dB per stage) |
| gain | L/M/H |
| FiiO Control | support |
| Bluetooth format indication | support |
| Sample Rate Indication | support |
| Dimensions | 200x 224.5x 72mm (excluding foot pads) |
| Firmware Upgrade | System firmware upgrades through USB, Bluetooth firmware upgrades through FIIO Control |
| Deep Standby | Long press the multi-function key for about 3 seconds |
| Low Power Reminder | None |
| Bluetooth Transmitter | None |
| Bluetooth reception (5.1) | AAC/SBC/aptX/aptX LL/aptX HD/LDAC/atpX Adaptive |
| Bluetooth format indicator | SBC: blue, AAC: cyan, aptX HD: yellow, aptX: purple, aptX LL: purple, LDAC: white, atpX Adaptive: green |
| Adapted impedance | PO:8~150Ω |
| Maximum supported sampling rate | 768kHz-32bit/DSD512(USB DAC) |
| keys and interfaces | |
| key | Solid key + toggle switch |
| USB | USB B*1, Type-C*1 |
| Single-ended input interface | RCA Socket |
| Balancing Line Input Interface | 4.4mm balance socket |
| Digital Fiber Input Interface | optical fiber socket |
| Digital Coaxial Input Interface | RCA socket |
| Balancing output interface | 4.4mm socket, XLR4 balanced socket |
| Headphone output interface | standard 6.35mm socket |
| Balancing line output interface | XLR3 balance socket |
| Single-ended line output interface | RCA Socket |
| Power parameters | |
| power supply | AC 100-120V ~/AC 220-240V ~ (recommended) |
| Battery Capacity | None |
| Audio Parameters - Some performance parameters of single-ended line output | |
| distortion plus noise | <0.00027% (1kHz/-0.7dB@10kΩ) |
| signal-to-noise ratio | ≥119dB (A-weighted) |
| channel separation | ≥112dB (1kHz@10kΩ) |
| bottom noise | <2.9μV (A-weighted) |
| frequency response | 20Hz~50kHz: damping<-3.5dB |
| Line Output Level | 2.3Vrms (1kHz@10kΩ) |
| Audio Parameters - Some performance parameters of single-ended line output - Performance Parameters of Balanced Line Output | |
| distortion plus noise | <0.00020% (1kHz/-1dB@10kΩ) |
| signal-to-noise ratio | ≥128dB (A-weighted) |
| channel separation | ≥122dB (1kHz@10kΩ) |
| bottom noise | <1.9μV (A-weighted) |
| frequency response | 20Hz~50kHz: damping<-3.5dB |
| Line Output Level | 4.7Vrms (1kHz@10kΩ) |
| Audio Parameters - Some performance parameters of single-ended line output - Headset Output Part Performance Parameters (6.35mm) | |
| Output power 1 | L+R≥1000mW+1000mW (16Ω, THD+N<1%, AUX/UAC/SPDIF/BT IN) |
| output impedance | <1Ω (32Ω) |
| Output power 2 | L+R≥1500mW+1500mW (32Ω, THD+N<1%, AUX/UAC/SPDIF/BT IN) |
| channel separation | ≥76dB (1kHz@32Ω) |
| Output power 3 | L+R≥200mW+200mW (300Ω, THD+N<1%, AUX IN) |
| distortion plus noise | <0.00026% (1kHz/-1.3dB@32Ω) |
| bottom noise | <3.0μV (A-weighted) |
| signal-to-noise ratio | ≥127dB (A-weighted) |
| frequency response | 20Hz~50kHz: damping<-3.5dB |
| peak output voltage | >21Vp-p |
| Audio Parameters - Some performance parameters of single-ended line output - balanced headphone output part performance parameters (4.4mm/XLR4) | |
| Output power 1 | L+R≥1000mW+1000mW (16Ω, THD+N<1%, AUX/UAC/SPDIF/BT IN) |
| output impedance | <1Ω (32Ω) |
| Output power 2 | L+R≥2000mW+2000mW (32Ω, THD+N<1%, AUX/UAC/SPDIF/BT IN) |
| channel separation | ≥116dB (1kHz@32Ω) |
| Output power 3 | L+R≥780mW+780mW (300Ω, THD+N<1%, AUX IN) |
| distortion plus noise | <0.00029% (1kHz/-9.5dB@32Ω) |
| bottom noise | <5.2μV (A-weighted) |
| signal-to-noise ratio | ≥124dB (A-weighted) |
| frequency response | 20Hz~50kHz: damping<-3.5dB |
| peak output voltage | >42Vp-p |