Introduction
Thank you for choosing the 5 Core MX 4CH 4-Channel Audio Mixer. This compact and versatile mixing console is designed for a variety of audio applications, including live recording, podcasting, karaoke, and DJ setups. It features 2 mono and 2 stereo channels, XLR and 1/4" inputs, +48V phantom power, Bluetooth 5.4 connectivity, and a USB audio interface for PC recording. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.

Image: The 5 Core Professional Audio Mixer, highlighting its key features like Bluetooth, headphone monitoring, USB flash reader, and 48V phantom power.
Safety Instructions
- Power Supply: Use only the specified power adapter. Ensure the voltage matches the device requirements.
- Water and Moisture: Do not expose the mixer to water, rain, or excessive moisture. Avoid placing liquid-filled objects on the unit.
- Ventilation: Ensure adequate ventilation. Do not block ventilation openings.
- Heat Sources: Keep the unit away from heat sources such as radiators, heat registers, stoves, or other heat-producing appliances.
- Cleaning: Clean only with a dry cloth. Disconnect from power before cleaning.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
- Cables: Protect power cords from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Placement: Place the mixer on a stable, flat surface to prevent accidental falls.
Product Overview
Key Features
- 4-Channel Mixing: Two mono channels with XLR/1/4" inputs and two stereo channels (1/4" or RCA).
- +48V Phantom Power: Essential for condenser microphones on channels 1 and 2.
- Bluetooth 5.4 Connectivity: Seamless wireless audio streaming from compatible devices.
- USB Audio Interface: Connects to a computer for recording and playback. Supports MP3/WAV/WMA/FLAC formats via U-Disk.
- 2-Band EQ: High and Low frequency adjustment on each channel for precise sound control.
- Built-in Effects: Delay and Repeat effects to enhance audio.
- Headphone Output: Dedicated output for monitoring.
- Compact Design: Portable and robust chassis for various environments.
Mixer Layout and Controls

Image: A detailed top-down view of the 5 Core MX 4CH Audio Mixer, showing all input/output ports, knobs, and buttons.
The mixer features a clear layout with dedicated controls for each channel and master output.
- MIC/LINE Inputs (Channels 1-2): XLR and 1/4" combo jacks for microphones or line-level instruments.
- +48V Phantom Power Button: Activates phantom power for condenser microphones on channels 1-2.
- LINE Inputs (Channels 3-4): 1/4" and RCA stereo inputs for line-level devices.
- GAIN Knobs: Adjust input sensitivity for each channel.
- HIGH/LOW EQ Knobs: Adjust treble and bass frequencies for each channel.
- EFX Knobs: Control the amount of effect (Delay/Repeat) applied to each channel.
- PEAK Indicators: Light up when the input signal is too high, indicating potential clipping.
- VOL Knobs (1, 2, 3-4): Adjust the individual channel volumes.
- DELAY/REPEAT Knobs: Control the parameters of the built-in effects.
- MAIN Knob: Adjusts the overall output volume.
- PHONES Knob: Adjusts the headphone output volume.
- USB Audio Interface: USB port for connecting to a computer or playing media from a U-Disk.
- MODE/BT Button: Switches between USB, Bluetooth, and other modes.
- Playback Controls: Play/Pause, Skip Forward/Backward for USB/Bluetooth media.
- Power Indicator: Shows the unit's power status.
- CLIP/SIG Indicators: Signal and clipping indicators for the main output.
Setup
1. Power Connection
- Ensure the mixer's power switch is in the OFF position.
- Connect the provided power adapter to the mixer's power input.
- Plug the power adapter into a suitable electrical outlet.
- Turn the mixer's power switch to the ON position. The power indicator light will illuminate.
2. Connecting Audio Sources

Image: Demonstrates the 1/4" and XLR interface connections for microphones and line-level devices.
- Microphones (Channels 1-2):
- Connect dynamic microphones using XLR or 1/4" cables to the MIC/LINE inputs.
- For condenser microphones, connect via XLR and press the +48V PHANTOM button. Ensure phantom power is only activated when needed and for compatible microphones.
- Line-Level Instruments/Devices (Channels 1-4):
- Connect instruments (e.g., keyboards, guitars with preamps) or other audio devices using 1/4" cables to the MIC/LINE inputs (Channels 1-2) or LINE inputs (Channels 3-4).
- For stereo devices, use both Left and Right 1/4" or RCA inputs on Channels 3-4.
- USB Device (U-Disk):
- Insert a USB flash drive (U-Disk) containing MP3/WAV/WMA/FLAC audio files into the USB port.
- Bluetooth Device:
- Press the MODE/BT button until "BT" appears on the display.
- On your smartphone, tablet, or computer, search for "5 CORE" in the Bluetooth settings and pair.
3. Connecting Output Devices

Image: A comprehensive diagram illustrating how to connect various devices like computers, power amplifiers, passive speakers, condenser microphones, dynamic microphones, wireless microphones, and headphones to the 5 Core mixer.
- Main Output: Connect the L/R MAIN OUT RCA jacks to your power amplifier, active speakers, or recording device.
- Headphones: Plug your headphones into the 1/4" PHONES jack.
- PC Recording: Connect the mixer to your computer via the USB port for recording audio.
Operating Instructions
1. Basic Mixing
- Set Initial Levels: Before playing any audio, set all GAIN, VOL, MAIN, and PHONES knobs to their minimum positions.
- Connect Inputs: Connect your microphones and instruments as described in the Setup section.
- Adjust Gain: Slowly increase the GAIN knob for each active channel until the PEAK indicator flashes only occasionally during the loudest parts of the signal. Avoid constant illumination of the PEAK light to prevent distortion.
- Adjust EQ: Use the HIGH and LOW EQ knobs to shape the tone of each channel. Turn clockwise to boost frequencies, counter-clockwise to cut.
- Adjust Channel Volume: Slowly raise the VOL knob for each channel to achieve a balanced mix.
- Adjust Main Output: Gradually increase the MAIN knob to set the overall volume for your speakers or recording device. Monitor the CLIP/SIG indicators to avoid clipping.
- Adjust Headphone Volume: Use the PHONES knob to set a comfortable monitoring level.
2. Using Bluetooth
- Press the MODE/BT button until the display shows "BT".
- Enable Bluetooth on your device (smartphone, tablet, PC) and search for "5 CORE".
- Select "5 CORE" to pair. Once paired, you can stream audio wirelessly to the mixer.
- Adjust the volume of the Bluetooth input using the VOL 3-4 knob.
3. USB Playback (U-Disk)

Image: A close-up view of the USB port and digital display, indicating its functions for playing MP3/WAV/WMA/FLAC files, recording, and acting as a computer sound card.
- Insert a USB flash drive with audio files into the USB port.
- The mixer will automatically switch to USB mode and begin playback. If not, press the MODE/BT button to select USB.
- Use the playback control buttons (Play/Pause, Skip Forward/Backward) to navigate your audio files.
- Adjust the volume of the USB input using the VOL 3-4 knob.
4. USB Recording (PC)

Image: A diagram illustrating how to connect the 5 Core mixer to a computer via USB for both playing background music from the computer and recording the mixer's output to a computer program.
- Connect the mixer to your computer using a USB cable (not included).
- The computer should recognize the mixer as an audio input/output device.
- Open your preferred recording software (e.g., Audacity, GarageBand).
- Select the mixer as the input device in your software's audio settings.
- Adjust input levels on the mixer and in your software to achieve a clean recording without clipping.
- Start recording in your software.
5. Using Effects (Delay & Repeat)
- Use the EFX knob on each channel to send a portion of that channel's signal to the effects processor.
- Adjust the DELAY knob to control the delay time.
- Adjust the REPEAT knob to control the number of repetitions of the delayed signal.
- The combined effect is applied to the main output.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the mixer's surface. Do not use liquid cleaners, solvents, or abrasive materials.
- Storage: When not in use, store the mixer in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cable Management: Avoid tightly coiling cables or placing heavy objects on them to prevent damage.
- Knobs and Faders: Periodically check that all knobs and buttons operate smoothly. Do not force them.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable disconnected, faulty outlet, power switch off. | Check power cable connection. Try a different outlet. Ensure power switch is ON. |
| No sound from a channel | Channel volume too low, GAIN too low, input cable faulty, incorrect input selected (USB/BT). | Increase GAIN and VOL for the channel. Check cable connections. Ensure correct input mode is selected. |
| No main output sound | MAIN volume too low, output cables disconnected, amplifier/speakers off or muted. | Increase MAIN volume. Check output cables. Verify external amplifier/speakers are powered on and unmuted. |
| Distorted sound | GAIN or VOL too high, PEAK/CLIP indicators constantly lit. | Reduce GAIN and VOL levels until PEAK/CLIP indicators only flash occasionally. |
| Bluetooth not connecting | Mixer not in BT mode, device too far, previously paired device connected. | Press MODE/BT button to select BT mode. Ensure device is within range. Disconnect from other Bluetooth devices. |
| Phantom power not working | +48V button not pressed, faulty XLR cable, microphone not compatible. | Press the +48V PHANTOM button. Use a good quality XLR cable. Ensure your microphone requires and is compatible with phantom power. |
Specifications

Image: A diagram showing the dimensions of the 5 Core MX 4CH Audio Mixer: 460mm (height) x 285mm (width).
- Channel No: 4 (2 Mono, 2 Stereo)
- Effects: Repeat and Delay
- Voltage: 100-240V
- USB Port: Yes (for U-Disk playback and PC recording)
- Bluetooth: Yes, Version 5.4
- Compatibility: Power amplifier, microphone, PC
- Phantom Power: +48V
- PC Recording: Yes (requires USB cable, not included)
- Frequency Response: 20Hz-20KHz +3dB
- EQ: 2-band (High, Low)
- Input Sensitivity:
- Mic: -60dBm
- Line: -20dB
- Eff Ret: -20dB
- Tape In: -20dB
- S/N Ratio: >70dB
- Output Voltage (MAX): 4V
- THD (1KHz Full Power): <0.15%
- Product Dimensions (H x W x D): 460 x 285 x 285 mm
- Item Weight: 1.34 pounds
- Power Source: Corded Electric
- Connectivity Technology: USB, XLR, Bluetooth
Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or contact 5 Core customer service directly. Details can typically be found on the manufacturer's official website or through your retailer.






