Kmise J121-xxxyyyywz

Kmise 8-Channel Professional Audio Mixer (Model J121-xxxyyyywz) User Manual

Comprehensive instructions for setting up, operating, and maintaining your audio mixer.

1. Introduction

Thank you for choosing the Kmise 8-Channel Professional Audio Mixer. This manual provides detailed instructions to help you understand the features, set up, and operate your mixer effectively. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.

Kmise 8-Channel Professional Audio Mixer

Figure 1: Front view of the Kmise 8-Channel Professional Audio Mixer, showcasing its various input channels, faders, and control knobs.

2. Safety Information

  • Ensure the power supply voltage matches the requirements specified on the mixer.
  • Do not expose the unit to rain or moisture to prevent fire or electric shock.
  • Avoid placing the unit near heat sources or in direct sunlight.
  • Do not open the casing; refer all servicing to qualified personnel.
  • Disconnect power before cleaning or when not in use for extended periods.

3. Product Features

  • 8-Channel Input: Supports multiple microphones and line-level devices.
  • +48V Phantom Power: Essential for condenser microphones.
  • Bluetooth Connectivity: Wireless audio streaming from smartphones, tablets, and PCs.
  • USB/MP3 Player & Recorder: Direct input for USB drives and MP3 playback/recording.
  • 3-Band EQ: High, Mid, and Low frequency adjustment on all channels.
  • Built-in Effects: FX, Delay (DLY), Reverb (REF) for enhanced audio.
  • Headphone Monitoring: Dedicated output for monitoring audio.
  • Durable Construction: Steel chassis for reliability.
Key features of the Kmise 8-Channel Audio Mixer

Figure 2: An overview highlighting the mixer's key features including 48V Phantom Power, Bluetooth, USB Recording, Headphone Monitoring, Multiple Channel Inputs, and 3-Band EQ.

4. Panel Layout and Controls

4.1 Input Channel Controls

Detailed view of input channel controls on the mixer

Figure 3: Close-up of an input channel, detailing the MIC input interface, LINE input interface, Gain adjustment knob, Channel high frequency adjustment knob (HF), Channel midrange frequency adjustment knob (MF), Channel bass adjustment knob (LF), AUX Auxiliary output, Reverb adjustment (FX), Sound balance control (PAN), Peak signal indicator (PKI), Volume fader, and Monitor button (PFL).

  • MIC Input Interface: XLR connector for microphones.
  • LINE Input Interface: 1/4" TRS jack for line-level instruments or devices.
  • GAIN Knob: Adjusts the input sensitivity for the channel.
  • HF (High Frequency) Knob: Controls the treble frequencies.
  • MF (Mid Frequency) Knob: Controls the midrange frequencies.
  • LF (Low Frequency) Knob: Controls the bass frequencies.
  • AUX Knob: Adjusts the send level to the auxiliary output.
  • FX Knob: Adjusts the send level to the internal effects processor.
  • PAN Knob: Positions the channel's sound in the stereo field (left to right).
  • PKI (Peak Indicator): Lights up when the input signal is too high, indicating potential clipping.
  • Volume Fader: Adjusts the output level of the individual channel.
  • PFL (Pre-Fader Listen) Button: Routes the channel's signal to the headphones for monitoring before the fader.

4.2 Master Section Controls

Detailed view of master section controls on the mixer

Figure 4: Close-up of the master section, showing Master output jacks (L MAIN OUT R), Left and Right channel master output jacks, Effects send output jacks, Reverb outputs, Monitor output jacks, Lotus input/output jacks (RCA), Aux send output jacks, Monitor jacks (PHONES), MP3 playback volume, MP3 player signal distribution button, Function button, +48V phantom power button, Auxiliary transmitter master button, Master monitor button, Reverb output volume adjustment, Monitor volume adjustment, Effects send signal adjustment, Processor delay effects interval, Echo frequency and depth adjustment, Total reverb volume, and Total Volume Fader (L MAIN R).

  • L MAIN OUT R: Main stereo output jacks (XLR and 1/4" TRS).
  • CTRL ROOM (Monitor) Outputs: Outputs for control room monitors.
  • PHONES: Headphone output jack.
  • AUX SEND: Auxiliary send output.
  • EFFECT: Effects send/return jacks.
  • TAPE IN/OUT: RCA input/output for external recording/playback devices.
  • +48V PHANTOM POWER Button: Activates phantom power for condenser microphones.
  • MP3 Player Section:
    • USB Port: For USB flash drives.
    • Display Screen: Shows MP3 player status, track info, and Bluetooth connection.
    • Control Buttons: Play/Pause, Skip tracks, Mode selection (USB/BT).
    • MP3 LEVEL Knob: Adjusts the volume of the MP3/USB/Bluetooth input.
  • EFFECTS Section:
    • FX Knob: Overall effects level.
    • DLY (Delay) Knob: Adjusts the delay time.
    • REF (Reverb) Knob: Adjusts the reverb depth.
  • L MAIN R Fader: Master volume control for the main stereo output.

5. Setup and Connections

5.1 Power Connection

Connect the provided power adapter to the "POWER INPUT" jack on the rear panel of the mixer, then plug the adapter into a standard 110V AC outlet. Ensure the main power switch is in the OFF position before connecting. Turn on the mixer using the main power switch located on the rear panel.

Rear panel showing power input and switch

Figure 5: Rear view of the mixer, indicating the main power switch and power input connection.

5.2 Connecting Microphones and Instruments

  • Microphones: Connect XLR microphones to the MIC input interfaces (channels 1-8). If using condenser microphones, activate the +48V Phantom Power button.
  • Line-Level Devices: Connect instruments (keyboards, guitars with preamps) or other line-level audio sources to the LINE input interfaces using 1/4" TRS cables.
Diagram showing various device connections to the mixer

Figure 6: Illustration of connecting multiple devices to the mixer, including musical instruments, microphones, amplifiers, effectors, USB flash drives, computers, and mobile phones.

5.3 Connecting to a Computer or Smartphone

Instructions for connecting the mixer to a computer and smartphone

Figure 7: Visual guide for connecting the mixer to a computer via a male-to-male USB cable (not included) and to a smartphone using a male-to-male cable and an OTG adapter (not included).

  • Computer Connection: Use a USB A-to-B cable (not included) to connect the mixer's USB port to your computer. This allows for recording and playback via USB.
  • Smartphone Connection: Connect your smartphone using a male-to-male audio cable and an OTG adapter (both not included) to the appropriate input/output jacks for mobile recording or playback.

6. Operating Instructions

6.1 Basic Audio Mixing

  1. Connect Inputs: Plug in your microphones and instruments to the respective channels.
  2. Set Gain: Adjust the GAIN knob for each channel until the PKI light flashes only occasionally during the loudest parts of the signal.
  3. Adjust EQ: Use the HF, MF, and LF knobs to shape the tone of each input.
  4. Set Pan: Position each channel in the stereo field using the PAN knob.
  5. Adjust Channel Volume: Use the individual channel faders to balance the levels of all inputs.
  6. Master Volume: Adjust the L MAIN R fader for the overall output volume.

6.2 Bluetooth Audio Streaming

Bluetooth wireless connection setup for the mixer

Figure 8: Diagram illustrating the Bluetooth wireless connection process, showing a smartphone streaming music to the mixer. The mixer's display shows "Bluetooth & MP3 Player".

  1. Press the "MODE" button on the MP3 player section until "BT" or "Bluetooth" appears on the display.
  2. On your smartphone or Bluetooth-enabled device, search for available devices and select "Kmise Mixer" (or similar name).
  3. Once paired, audio from your device will stream wirelessly to the mixer. Adjust the MP3 LEVEL knob to control the volume.

6.3 USB/MP3 Playback and Recording

USB port on the mixer for flash drive connection

Figure 9: Close-up of the USB port on the mixer, ready for a USB flash drive.

  • Playback: Insert a USB flash drive containing MP3, WAV, or WMA files into the USB port. The mixer will automatically switch to USB mode or you may need to select it using the "MODE" button. Use the control buttons (Play/Pause, Skip) to navigate tracks. Adjust MP3 LEVEL for volume.
  • Recording: When connected to a computer via USB, the mixer acts as an audio interface, allowing you to record the mixed output using your preferred digital audio workstation (DAW) software. Refer to your DAW's manual for specific recording instructions.

6.4 Using Effects

The mixer includes built-in effects for enhancing your audio. Use the FX knob on individual channels to send signal to the effects processor. Adjust the DLY (Delay) and REF (Reverb) knobs in the master section to control the characteristics of the effects. The overall effects level can be controlled by the dedicated FX knob in the master section.

7. Specifications

Item Weight8.43 pounds
Package Dimensions17.6 x 16.65 x 3.65 inches
Model NumberJ121-xxxyyyywz
Power SourceCorded Electric
Voltage110 Volts (AC)
Number of Channels8
Connectivity TechnologyUSB, Bluetooth
Output Connector TypeRCA, TRS, XLR
Dimensions of the Kmise 8-Channel Audio Mixer

Figure 10: Dimensions of the mixer: 40cm (15.7 inches) width and 34cm (13.3 inches) height, shown with its power adapter.

8. Maintenance

  • Cleaning: Use a soft, dry cloth to clean the mixer's surface. Do not use liquid cleaners or solvents.
  • Storage: Store the mixer in a cool, dry place away from direct sunlight and extreme temperatures.
  • Cable Management: Ensure cables are not tangled or strained to prevent damage to connectors and ports.

9. Troubleshooting

This section addresses common issues you might encounter. For problems not listed here, please contact customer support.

ProblemPossible CauseSolution
No sound output
  • Power not connected or switched on.
  • Main fader or channel faders are down.
  • Incorrect input/output connections.
  • Check power supply and switch.
  • Raise main and channel faders.
  • Verify all cables are correctly connected to inputs and outputs.
Distorted audio
  • Input gain too high (PKI light constantly on).
  • Output level too high.
  • Reduce GAIN knob for the affected channel.
  • Lower main fader or individual channel faders.
Microphone not working
  • +48V Phantom Power not activated for condenser mics.
  • Faulty microphone or cable.
  • Press the +48V button.
  • Test with a different microphone or cable.
Bluetooth not connecting
  • Mixer not in Bluetooth mode.
  • Device too far or already connected to another device.
  • Ensure "BT" is displayed on the MP3 player screen.
  • Move device closer; disconnect from other Bluetooth devices.

10. Warranty and Support

Kmise products are designed for reliability and performance. For warranty information, please refer to the documentation included with your purchase or visit the official Kmise website. For technical support, troubleshooting assistance, or service inquiries, please contact Kmise customer support through their official channels.

Website: Visit the Kmise Store on Amazon