4. How to enter the setting menu and what is the introduction of the menu items?

【Menu knob button operation】

1. Switch working mode: After turning on the computer and entering the main interface, short press the knob to enter the working mode menu. At this time, after rotating the knob, you can switch between "USB"-"Coaxial"-"Bluetooth" working modes. Short press the knob to select the corresponding one. working mode. Long press the knob to return to the main interface.

2. Setting menu: In the main interface state, long press the knob to open the menu selection interface. At this time, rotate the knob to select the menu setting item, and short press to confirm the selection. Press and hold the volume knob for about 2 seconds to return to the previous menu.

3. Adjust the volume: On the main interface, you can adjust the volume by rotating the volume knob. Clockwise will decrease the volume, and counterclockwise will increase the volume.

【Introduction to menu items】

Gain: Q15 supports 5 levels of gain, super big ear mode/big ear mode/high gain/medium gain/low gain. Choosing the appropriate gain can better drive headphones with different impedances for a better listening experience (note: trigger Super big ear mode, you need to insert a PD charger into the USB POWER IN interface and select ON at the same time as the DESKTOP MODE switch)

Single-ended output selection: LO or PO output can be selected

Balanced output selection: LO or PO output can be selected

(Output priority: insert first)

Line output volume: configurable (LO) line output volume is adjustable or fixed maximum output

Maximum volume: The maximum volume output by the Q15 headphone port can be customized. It is optional between 20-120. It is invalid when the line output volume is fixed.

Enable super big ear mode: Set super big ear mode to automatically turn on or manually turn on

Filter: The original decoder chip comes with 7 filter effects, which you can choose according to your own preferences.

Display brightness: You can set the display brightness, 1-5 is optional

Display duration: You can set the time the screen remains lit after no operation, 5-30s optional

Automatic power saving: Q15 automatically enters power saving mode after 30 minutes of no signal input by default. When the automatic power saving mode is turned on, the knob indicator light will turn off when the screen turns off.

Screen flip: You can flip the screen display clockwise 90 degrees / 180 degrees 270 degrees

USB mode: UAC1.0: driver-free mode, UAC2.0: high bit rate transmission mode

PEQ mode: Q15 USB decoding supports PEQ adjustment. You can choose the EQ that suits you. Custom EQ needs to be used with FIIO Control APP.

Language/Language: Switch between Chinese/English languages

Factory reset: clear configuration information and restore factory default settings, after which Q15 will shut down.

Firmware version: Check the Q15 microcontroller firmware version. XMOS needs to be checked on the computer driver panel.