OLED Display
Dual CS43198 DACs
SPDIF output
PCM 32bit 768kHz
Native DSD256

FiiO KA5
Portable DAC & Headphone Amplifier

Multifunctional local OS | OLED display
Dual CS43198 DACs | Dual 8261 amps
PCM 768kHz/32bit | DSD256
3.5+4.4 dual outputs | App connectivity

FiiO KA5, equiped with better hardwares among the price class

Flagship dual DACs For excellent sound

The KA5 featured dual Cirrus Logic CS43198 DACs, known for their efficiency and their ability to cover with a wide range music in good performance

High-Res decoding Listening to the heart of music

The KA5 supports up to 32bit/768kHz PCM and Native DSD256 decoding, allowing you to deep dive in listening music, that compatible with wide range devices (Android phones, Computers, Apple iPhones, Tablets, External decoders, etc.)

Improved Cores, Stronger Power

For better audio performance, the KA5 utilizes a 6-layer immersion-gold PCB as well as high-performance ultra-low noise op amps for robusting the sound

Black & White

Black, follows the KA series design language. The all-metal construction is combined with futuristic and charismatic elements.

White, the aluminium alloy body was electrophoresis processed, integrated with black and white colors. Feel the delicate texture in your hand.

Bold ruggedness Highly capable

The aggressive lines of the KA5 give it a bold look, while the carefully designed texture makes it a joy to handle. The dual outputs on the right side of the KA5 hint at its powerful capabilities.

*3.5mm output supports SPDIF output. After enabling the SPDIF output in the settings menu, the USB audio signals can be converted to SPDIF signals. Connect the KA5 to a higher-end external decoder to set up a better audio system.

Flexible local operating system

The OLED display and physical buttons make navigating the settings menu and looking at the playback display more straightforward and intuitive. In addition, the KA5’s built-in MCU processor handles complex operations with ease, further making the KA5 a joy to use.

*Volume buttons A/B mode
A mode: Volume+ button: short press once to increase volume 1 level, long press for 2 seconds to play previous track, and press to go page up in settings menu.  Volume– button acts in the opposite way.

B mode: Volume+ button: short press once to increase volume 1 level, long press for 2 seconds to play previous track, and press to go page up in settings menu.  Volume– button acts in the opposite way.

Companion App To better serve your needs

Besides the local KA5 operating system, you can use the FiiO Control App to take control over the KA5. Use either method to conveniently dial in the KA5 exactly under your wish.

*The KA5 can only be controlled through the FiiO Control app on an Android device.

Small in size But powerful in functionality

Despite the KA5’s compact size, it packs a ton of functionality – such as high and low gain, 5 selectable filters, L/R channel balance, and screen flip, etc., those make the KA5 redefine what a tiny audio dongle can achieve.

UAC 1.0 support For truly immersive gaming!

The KA5 supports UAC2.0 and UAC1.0 modes. With the UAC 1.0 mode you can connect the KA5 to the Switch and other various devices, allowing you to experience rich and detailed sound effects that make your gaming sessions much more immersive.

*With the KA5 not connected to any device and off, press and hold the multifunction key. While holding the key, connect the KA5 to your desired device to enable UAC 1.0 mode.

Included adapter cables Compatible with various platforms

The KA5 features a detachable cable design, which allows you to switch between the included custom Type-C and Lightning OTG adapter cables – saving you from having to separately buy cables to freely switch between listening devices.

*Stably compatible with Android, iOS, Windows, and MAC devices


Connect to Android phone


Connect to computer


Connect to iPhone


Connect to tablet


SPDIF output to connect to external decoder


Abundant accessories

USB-A male to Type-C female adapter x1
Type-C to Type-C OTG cable x1
Type-C to Lightning OTG cable x1
Manual x1
Warranty card x1



General Specifications
Name/Model KA5 DAC chip DAC: CS43198 *2
Color Black/White Dimensions About 56.3*22*12mm
Weight About 19g Headphone impedance PO: 16~150Ω
Sampling rate display OLED display BAL: 16~300Ω
balanced output interface 4.4mm socket support DSD DSD64/128/256
Max sampling rate support 768K/32bit Firmware upgrade The system firmware can be upgraded using USB
DSD64/128/256 FiiO control Supported
192K/32bit (Coaxial)    
Buttons and Ports
USB
Type-C USB
3.5mm port Shared single-ended/SPDIF out
Buttons Menu selecting, function setting, volume adjusting, song switching
4.4mm port
Balanced out
OLED display
Displays sampling rate and working state
   
Audio Parameters
Parts of performance parameters of headphone out (3.5mm) 
Output power L+R≥136mW+136mW (16Ω, THD+N<1%, USB IN) Max output voltage ≥1.99V (32Ω, THD+N<1%)
L+R≥122mW+122mW (32Ω, THD+N<1%, USB IN) ≥2V (600Ω, THD+N<1%)
L+R≥13.5mW+13.5mW (300Ω, THD+N<1%, USB IN)
Output impedance
<0.3Ω
Frequency response 20Hz~20kHz, crosstalk≤0.1dB Channel crosstalk ≥72dB (1kHz, 32Ω)
20Hz~50kHz, crosstalk≤0.2dB Noise floor 1.6uV&1.0uV"A"
THD+N <0.00037% (0dB, 32Ω) SNR ≥124dB (32Ω, A-weighted)
<0.00035% (0dB, 600Ω) ≥126dB (600Ω, A-weighted)
Parts of performance parameters of headphone out (4.4mm)
output power L+R≥154mW+154mW (16Ω, THD+N<1%.USB IN) peak output voltage ≥2.9V (32Ω, THD+N<1%)
L+R≥265mW+265mW (32Ω, THD+N<1%, USB IN) ≥4V (600Ω, THD+N<1%)
L+R≥54mW+54mW (300Ω, THD+N<1%, USB IN)
output impedance
<0.35Ω
frequency response 20Hz~20kHz, crosstalk≤0.1dB channel separation ≥115dB (1kHz, 32Ω)
20Hz~50kHz, crosstalk≤0.2dB bottom noise 1.8uV&1.1uV"A"
distortion <0.00037% (-6dB, 32Ω) signal-to-noise ratio ≥128dB (32Ω A-weighted)
<0.00024% (0dB, 600Ω) ≥130dB (600Ω A-weighted)


KA5 performance Curve testings

Frequency Response Curve

Frequency Response Curve 1


Test conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-20kHz PO (32Ω load)
Red: Left channel; Blue: Right channel

THD+N Curve

THD+N Curve 1


Test conditions: USB DAC in, 0dB sinusoidal signal, 20Hz-20kHz high gain PO (32Ω load)
Red: Left channel; Blue: Right channel

Frequency Response Curve

Frequency Response Curve 2


Test conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-50kHz PO (32Ω load)
Red: Left channel; Blue: Right channel

THD+N Curve

THD+N Curve 2

Test conditions: USB DAC in, -6dB sinusoidal signal, 20Hz-20kHz high gain BAL out (32Ω load)
Red: Left channel; Blue: Right channel

Frequency Response Curve

Frequency Response Curve 3

Test conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-20kHz BAL out (32Ω load)
Red: Left channel; Blue: Right channel

Amplitude Distortion Curve

Amplitude Distortion Curve 1

Test conditions: USB DAC in, 0dB sinusoidal signal, PO (600Ω)

Frequency Response Curve

Frequency Response Curve 4

Test conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-50kHz BAL out (32Ω load)
Red: Left channel; Blue: Right channel

Amplitude Distortion Curve

Amplitude Distortion Curve 2

Test conditions: USB DAC in, 0dB sinusoidal signal, BAL out (600Ω)


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