Truly balanced DAC/Amp | THX AAA 788+ amp technology | Dual AK4493SEQ DACs

 Multiple intelligent protection systems Two levels of hardware gain | QCC5124 Bluetooth chip Included 12V/24W low-noise switching power supply Power supply with numerous independent LDOs RGB status indicators | 3 output modes


* Pictures are for reference only. The actual product may vary.

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A new baseline for balanced desktop sound

The left and right channels are each equipped with an efficient high-performance AK4493SEQ. With this DAC’s pleasant timbre, its rich and delicate overall sound will let you rediscover your music all over again.

Dual AK4493SEQ
Rich and delicate overall sound

Using the same THX AAA 788+ amplifiers as the K9 Pro, the K7 is capable of outputting 560mW into a 300Ω load at 1% distortion, and 2000mW into a 32Ω load at 1% distortion. This ensures both low and high impedance headphones are powered with aplomb, and most importantly lets you experience musicality that’s sure to tug at your heartstrings.

Democratized high-quality balanced amplification
Couldn’t sound better

The K7 has a six-stage audio circuit with truly balanced analog and digital sections – which helps to reduce crosstalk and reproduce music to a great extent, allowing you to better enjoy the purity of your music.

Truly balanced decoding and amplification

The XMOS XUF208 decoder chip uses dual clock management to handle various music formats with ease, allowing you to easily listen to many audio formats. 


Robust decoding capabilities
Take a trip around the music world

The RGB indicator lights are capable of displaying single colors as well as mixed colors, with a unique light flow effect during power-on/off or input switching. Dazzling and vivid light effects give your desk some much needed spice.

RGB indicator lights
For a colorful entrance

Overheating, overload, DC protection systems ensure that the K7 always operates at its best, so you can always enjoy a wonderful listening experience in multiple scenarios.


Multiple intelligent protection systems
Worry-free listening

The K7 features a power design consisting of multiple independent stages, with a voltage of each stage being regulated by low-noise LDOs. Feeding this power design is an external 12V switching power supply. All in all, the K7’s power design is designed to supply plentiful, clean power for an extraordinary listening experience.

Consistent inside and out
For pure clean listening

Variety of inputs and outputs All in one place


Numerous exciting possibilities
All within reach


The K7 contains USB, optical, coaxial, and RCA inputs. Outputs are 6.35mm single-ended and 4.4mm balanced for pleasant listening no matter the headphones.


One key controls switching between the 4 different inputs, with a flowing light effect to indicate when the input has switched and is ready.


Input switching
With just one click


3 different outputs
With just one touch


One touch of a handy key allows you to switch between 3 output modes (for use with headphones, with speakers, or use as a DAC). 


Connecting to desktops or laptops via USB

A jack of all trades
Capable under any scenario

Connecting to smartphones via USB-B to Type-C cable

Connecting to desktop DACs

Connecting to external amplifiers or active speakers


6.35mm single end

4.4mm balance

The high and low hardware gain levels allow you to easily adjust the K7 to handle headphones of various impedances and sensitivities for a rich and consistent listening experience.


Two gain levels
Find a comfortable volume


The K7 features an all-aluminum alloy construction, carefully finished with CNC and other processes. Its elegant black color is perfectly complemented by the gold accents of THX and Hi-Res Audio badges topped with a splash of color from the RGB lights for a thoroughly luxurious appearance.

Quality construction
For an elegant air

Thanks to ADC curve reconstruction, experience a smooth 112 steps of adjustable volume free of channel imbalances and noise – ensuring that every note is faithfully reproduced.


Precisely tuned volume
For truly moving experience


The K7 features a petite design that only measures 55mm thick and with a footprint of less than 1/3 of an A4-sized sheet of paper – allowing it to fit perfectly on modern desks. 

Lightweight all-in-one
Simple and elegant  

Power cable x1
Power adapter x1
USB cable x1
Quick start guide x1
Warranty card x1


Abundant Accessories


Basic Specifications


DAC: AK4493SEQ*2 
Decoder: XMOS XUF 208
Amplifier: Dual THX AAA 788+ 
Outputs: 6.35mm/4.4mm
Output power 1: ≥2000mW (32Ω, balanced/THD+N<1%) 
Output power 2: ≥1220mW (32Ω, single-ended/THD+N<1%) 
Signal-to-noise ratio: ≥120dB ( A-weighted, UAC) 
Noise floor: PO<4.4μV (A-weighted, UAC); BAL<7.7μV (A-weighted, UAC) 
Output impedance: <1Ω (32Ω load) 
Weight: About 610g
Dimensions: About 120mm×168mm×55mm


The Bluetooth version of the K7 is available. It uses the QCC5124 Bluetooth chip*, supporting high-definition Bluetooth formats like LDAC/aptX HD/aptX Adaptive. When using the K7 BT, switch the input mode to Bluetooth, and you will acquire low-latency Bluetooth transmission and hi-res sound quality. Also, the app control* helps to further enhance your wireless experience.

HD Bluetooth A reassuring wireless experience

* Bluetooth 5.1, supports LDAC/aptX Adaptive/aptX/aptX HD/aptX LL/AAC/SBC
* Through the FiiO Control app, the K7 BT can achieve the following functions: upgrade Bluetooth firmware, select Bluetooth codec, customize PEQ, etc.