3. An Introduction to the Settings Menu and Display Information

How to activate/exit settings menu

Hold the Multifunction button for 2s to activate/exit the settings menu.

After activating the settings menu, short press the Multifunction button once to switch the setting option.

Short press volume +/- button once to page up/down on the settings menu.


An Introduction to Display Information

GAIN: select high or low gain.

FLT: digital filter, 5 filter levels are available.

VOL-CTL:volume level control, 120 levels for A mode, 60 levels for B mode.

DAC-OM:DAC output mode, ClassH and ClassAB modes are available.

SPDIF: after the SPDIF mode is enabled, you will get the SPDIF signal through the 3.5mm port with an adapter cable (purchased separately). Please keep this option disabled when using the analog output, such as when outputting to headphones.

ADJ-L/R: channel balance settings of the left/right channel.

H-DEPOP: display whether the hardware mute switch is on. You can set whether the hardware switch cuts off the output when switching songs to improve the POP sound problem that may exist when playing on some devices or Apps.

DIMMER: dimmer setting of the display.

ROT-DISP: rotate the display. It can be set to rotate 180 degrees.

OFF-DISP: the display can be auto-locked if there is no activity, and the time control can be chosen from 1 to 60 seconds. "NVR" means Never, i.e. the display will never be auto-locked.

Note: OLED display continuously on for a long time may lead to brightness differences. So when choosing the "NVR" option, it is suggested to double press the multifunction button to turn off the screen when you don't need to watch it.

HID-KEY: choose the A/B mode of Volume+and Volume buttons.

VERSION: firmware version display.

RST-DEF: restore default settings.


An Introduction to Display Information

①Current volume:display the current volume level.

②Current gain level: "HI"stands for high gain,"LO" stands for low gain.

③Current digital filter: F1 to F5 respectively stand for 5 digital filters.

④Current UAC version: "U2.0" and "U1.0" respectively stand for different UAC versions.

⑤SPDIF working state: a displayed "S" character means the SPDIF out is enabled.

⑥Current button control mode: A or B.

⑦Music format/sampling rate display:display the format and sampling rate of the currently playing song.



1. Why does the OLED screen display 'FSR ERROR' ?

When the output is invalid or unknown data, the device will display 'FSR ERROR'. This problem may be related to the player settings. Incorrect player settings or player bugs may cause the USB audio controller to receive information with non-normal sampling rate values, and the KA5 cannot output analog audio correctly. If this problem happens, please check whether the playback software or audio source works correctly.

2.Why does the OLED screen display 'BORN FOR MUSIC' ?

This is the standby mode of the KA5. When the KA5 is disconnected from the host's USB communication, the device will display 'BORN FOR MUSIC'. For example, when the device is not used for a long time while connected to a computer, or when the computer is in sleep mode, the KA5 will enter standby mode.