Introduction
Thank you for choosing the BOMGE PMX-402B Professional Audio Mixer. This 4-channel DJ mixer system is designed for versatile audio applications, featuring a built-in amplifier, 256 digital reverb effects, and Bluetooth functionality. This manual provides essential information for setting up, operating, and maintaining your mixer to ensure optimal performance and longevity.
Safety Information
- Read all instructions carefully before operating the device.
- Keep the mixer away from water, moisture, and extreme temperatures.
- Do not open the casing; refer all servicing to qualified personnel.
- Ensure proper ventilation to prevent overheating.
- Use only the provided AC power adapter.
- Disconnect power during lightning storms or when unused for long periods.
Package Contents
Please check the package for the following items:
- BOMGE PMX-402B Audio Mixer
- AC Power Adapter
- User Manual (this document)
Setup
Before connecting any devices, ensure the mixer is powered off and all volume controls are set to minimum.
1. Power Connection
- Connect the included AC power adapter to the mixer's AC INPUT port.
- Plug the power adapter into a suitable AC power outlet (available in 110V or 220V versions).
- Do NOT power on the unit until all audio connections are made.
2. Audio Input Connections
The PMX-402B features various input options:
- MIC/LINE Inputs (Channels 1-4): Use XLR or 6.35mm (1/4 inch) cables for microphones or line-level instruments.
- 48V Phantom Power: For condenser microphones, press the +48V PHANTOM button. Ensure microphones are connected before activating phantom power.
- RAC Input/Output: For connecting consumer audio devices (e.g., CD players, record players).
- AUX 1/2: Auxiliary inputs for additional audio sources.
3. Audio Output Connections
- MAIN OUTPUTS (L/R): Connect to your main PA system or powered speakers using XLR or 6.35mm (1/4 inch) cables.
- MONITOR 6.35: Connect to stage monitors or headphones.
- RETURNS 6.35: For connecting external effects processors.
4. USB and Bluetooth Setup
- USB Interface: Insert a USB flash drive for playback or recording. The mixer can also connect to a computer via USB for use as an audio interface.
- Bluetooth Function: Activate Bluetooth on your external device (e.g., smartphone, tablet) and search for "pmx-402b" to pair.
Operating Instructions
Familiarize yourself with the control panel before operation.
1. Basic Operation
- Power On: After all connections are made, turn on the mixer using the POWER(ON/OFF) switch on the rear panel.
- Channel Volume: Adjust the 1-4 CHANNEL VOLUME faders to control the individual input levels.
- Main Output: Use the MAIN FABER (L/R) to control the overall output volume.
- Monitoring: Connect headphones to the PHONES jack and adjust the MONITOR knob for personal monitoring.
2. Equalization (EQ)
Each channel features a 3-band EQ for precise tone shaping:
- HIGH: Adjusts the treble frequencies.
- MID: Adjusts the midrange frequencies.
- LOW: Adjusts the bass frequencies.
3. Digital Effects (DSP)
The mixer includes 256 professional digital reverb effects:
- Use the EFFECT FABER to control the overall effect level.
- The large screen displays the selected effect number and parameters.
- Adjust the DSP knob to cycle through the 256 available effects (e.g., Hall, Room, Chorus, Plate, Flanger, Echo, Distortion, etc.).
- The Level peak light display provides visual feedback on effect intensity.
4. USB/MP3/Bluetooth Player
The integrated player supports various functions:
- USB Playback: Insert a USB flash drive with audio files. Use the PLAY MODE, NEXT/PREVIOUS, and MODE buttons to navigate and control playback.
- Bluetooth Playback: Once paired, audio from your Bluetooth device will stream through the mixer. Control playback from your device or using the mixer's player controls.
- Recording: The USB interface supports recording directly to a USB flash drive or to a connected computer.
5. Integrated Amplifier
The PMX-402B features a powerful 350W x 2 amplifier, capable of driving passive speakers directly. Connect your speakers to the XLR/AUX 6.35 OUTPUTs on the rear panel.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the mixer's surface. Avoid abrasive cleaners or solvents.
- Storage: Store the mixer in a cool, dry place away from direct sunlight and extreme temperatures.
- Ventilation: Ensure the ventilation openings are clear of dust and debris to prevent overheating.
- Cable Management: Keep cables organized and avoid sharp bends to prevent damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable disconnected; power switch off; faulty outlet. | Check power cable connection; ensure power switch is ON; try a different outlet. |
| No sound output | Main volume fader down; channel volume fader down; incorrect output connection; faulty cables. | Increase MAIN FABER and CHANNEL VOLUME faders; verify output connections to speakers/amplifier; test with different cables. |
| Microphone not working | Phantom power off (for condenser mics); gain too low; faulty mic/cable. | Activate +48V PHANTOM power; increase TRIM knob; test with a different microphone or cable. |
| Bluetooth not connecting | Mixer not in pairing mode; device too far; interference. | Ensure mixer's Bluetooth is active; bring device closer; restart both devices. |
| USB playback issues | Unsupported file format; corrupted USB drive; USB drive not properly inserted. | Ensure audio files are in supported format (e.g., MP3, WAV); try a different USB drive; reinsert USB drive. |
Specifications
| Feature | Detail |
|---|---|
| Brand Name | BOMGE |
| Model | PMX-402B |
| Type | Mixers |
| Channels | 4 |
| Power Source | AC (110V/220V versions available) |
| Inbox Adaptor | Yes |
| Built-in Battery | No |
| Amplifier Power | 350W x 2 |
| Digital Effects | 256 DSP Reverb Effects |
| Equalization | 3-Band EQ per channel |
| Connectivity | Bluetooth, USB (playback/recording, computer interface), XLR, 6.35mm, RAC |
| Phantom Power | +48V |
| Product Dimensions (approx.) | Length: 33 cm (13 in), Width: 27.5 cm (10.83 in), Height: 14 cm (5.51 in) |
| Package Weight (approx.) | 6.82 kg |
| Package Dimensions (approx.) | Length: 43 cm, Width: 35 cm, Height: 20 cm |
User Tips
- For best sound quality, ensure all cables are securely connected and of good quality.
- When using phantom power, connect condenser microphones first, then activate +48V. Disconnect dynamic microphones before activating phantom power to avoid damage.
- Experiment with the 256 digital effects to find the perfect sound for your performance or recording.
- Utilize the 3-band EQ on each channel to fine-tune the audio for different instruments or vocalists.
- Keep the mixer's firmware updated if updates become available from the manufacturer.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official BOMGE website or contact your authorized dealer. Keep your purchase receipt as proof of purchase.
