How to use the Bluetooth receiver function of K13 R2R?

1.After powering on the K13 R2R, rotate the [INPUT] knob to switch to [BT IN] mode.

When switched to the Bluetooth receiving mode for the first time, the K13 R2R will automatically enter the pairing state. At this time, the screen of the K13 R2R will display “PAIRING”. Find and select K13 R2R in your phone's Bluetooth page to connect.

2.K13 R2R output setting: switch to the corresponding output port according to the interface used.

【OUT PO】Front panel 3.5mm + 4.4mm headphone output, typically connected to headphones

【OUT LO】Rear panel LINE OUT + Balanced Out with maximum fixed output volume, not adjustable, typically connected to speakers/amplifiers with adjustable volume

【OUT PRE】Rear panel LINE OUT + Balanced Out with adjustable output volume, typically connected to speakers/amplifiers without adjustable volume

3.Scroll the volume knob and adjust the volume of the K13 R2R to a suitable level before playing music. And select the GAIN (gain) according to personal preference;

4.Play music on the front device to enjoy the music.

Troubleshooting:

If your phone cannot detect the K13 R2R Bluetooth device, please try these solutions:

1.Switch the K13 R2R input mode (e.g., switch to USB then back to BT mode).

2.Replug the power supply for the K13 R2R, then search for the connection again.

3.In the settings menu, select RESET and confirm. When the Y/N prompt appears, choose Y and briefly press the menu knob to confirm. This operation will restore the K13 R2R to factory settings. Then attempt to connect again.