4. EA13 Knob Operation Instructions

Left Knob (Standby button and input selection knob)

Single press: Switch between RGB light effects

Double press: Turn off RGB light

Rotate: Switch between input channels

Long press: Power on/standby

To disable the no‑signal auto‑standby function: When the unit is in standby (channel‑selector knob shows red light), double‑click the knob. The red LED flashes twice to confirm deactivation. Repeat the same operation to re‑enable auto‑standby; the red LED will flash once.

Right Knob (Volume knob)

Clockwise rotation: Volume up

Counterclockwise rotation: Volume down

Always turn down the volume before use, then gradually increase it to your preferred listening level to prevent headphone damage.