1. GAIN GAIN knob: Sets the volume of the microphone or line input signal supplied to this channel. The GAIN knob is used to adjust the sensitivity of the microphone and line input signal. This allows the external signal to be tuned to the desired internal control level.
2. High Impedance [HI-Z] Switch Button: To connect the guitar directly to the mixer without using the DI box, press this switch first; Then connect the output of the guitar to the channel TRS input. The optimized input impedance ensures direct connection and high-frequency fidelity.
3. MIC/LINE/XLR Input Interface: Used to connect microphones, Musical Instruments, or external audio equipment. The multi-function jack supports both XLR and PHONE plugs.
4. Light: PK on indicates that the audio signal in the channel is too strong. Lower the level of the corresponding GAIN knob until the PK light is off. +48V phantom power light, when the phantom power switch is turned on, the +48V light will light up. SIG lights up to indicate the operating signal of the connected device
5. LOW CUT High pass filter: Turning this switch on will apply a high-pass filter to attenuate frequencies up to 100Hz at a slope of 12 dB/ frequency multiplier.
6. MIX the knob: Adjust the level balance between the signal input to the [MIC/LINE 1/2] jack and the application signal. This controller knob does not affect the signal sent to the computer.
7. MONO Switch: When the switch is on, the signal input to the [MIC/LINE 1/2] jack will be output to both the [MAON OUT L/R] jack and the L/R channel of the [phone] jack. When the switch is off, the signal input to the [MIC/LINE 1] jack will be output to the [MAON OUT L] jack; Signals input to the [MIC/LINE 2] jack will be output to the [MAIN OUT R] jack. For [PHONES] jacks, signals input to [MIC/LINE 1] jacks are output to L channels; Input to the [MIC/LINE 2] jack will be output to the R channel.
8. OUT Main Channel Knob: Used to adjust the signal level of the output to the [MAIN OUT] socket.
9. LOOP BACK: The sound input to the sound card and the sound played on the computer are mixed into a stereo and sent to the computer. This setting is mainly used for network broadcasting.
10. The POWER Lamp: When the POWER is connected, the POWER indicator light on the mixer will light up.
11. PHONE Jack/earphone Knob: Headphone knob - Adjusts the volume of the output of the headphone connected to the jack. Headphone jack - Used to connect headphones. The socket supports a stereo phone type plug. To connect a headset or earplug with a mini plug, please use the conversion device to connect.
12. MAIN OUTPUTS: Two ¼" (6.35mm) TRS sockets, +10 dB output level (variable), electronic balance. ¼"TRS(balanced connection) and TS(non-balanced connection) plugs are available.
13. Phantom Power Switch: When the phantom power switch is turned on, the +48V light comes on and DC +48V phantom power is supplied to the XLR plug on the [MIC/LINE] input port. Turn this switch on when using capacitors that require phantom power.

• Instructions: Be sure to set this switch to off if phantom power is not required. To prevent noise and damage to the mixer and external equipment when opening. Please observe the following important precautions:
• When connecting devices that do not support phantom power supply on the channel, ensure that the switch is turned off.
• Turn off the switch when connecting or disconnecting the cable from the channel.
• Before turning on/off the switch, pull the lever on the channel to the bottom.

14. The OUT MINI Output: The jack supports the mini plug for headphones or earplugs.

15. 5V DC(Type-C) Power Input Socket: Used to connect the supplied USB power adapter and Type-C data cable to power the mixer.

• Note: Carefully read the safety precautions for the USB power adapter and Type-C data cable you use. USB power adapter and Type-C data cable Standard:
• Output voltage: 4.8V to 5.2V. Output current: 3A or higher

16. The POWER SOURCE Switching: Switch different connection modes. When a data connection is required, switch to USB 2.0, so that the mixing console signal can be transmitted between PC, MAC, IOS, and some Android devices.