7. K15 indicator light description

The Menu Settings and Volume Settings knobs in K15 adopts RGB indicator light.

[Can the indicator lights of the two knobs be controlled independently to display different states?]

No, these two knob indicators are kept in the same state and designed for synchronized control. So the indicators can only display the same state but not be separated from the independent control display.

[Indicator in the power on/off knob]

It is ordinary RGB so its colour can not adjusted. It will turn off for about 3 seconds when the K15 is powered on and it is a normal phenomenon.

Digital Input Audio Quality Indicators

During digital signal input playback (including USB, optical, coaxial, local playback, and streaming), the indicator color reflects the current audio quality:

Cyan: Sampling rate ≤48 kHz.

Yellow: Sampling rate >48 kHz.

Green: DSD format.

Magenta: MQA format (only supported via USB input with EQ turned OFF).

Bluetooth Format Indicator Colors

For Bluetooth connectivity, the indicator displays specific colors based on the Bluetooth codec:

SBC: Blue

AAC: Cyan

aptX/aptX LL: Purple

aptX-HD: Yellow

aptX Adaptive: Green

LDAC: White