1. Introduction
Thank you for choosing the BOMGE 12F Professional Portable 12 Channel 99 DSP Recording Audio Mixer. This device is designed to provide high-quality audio mixing, recording, and sound control for various applications, including live performances, studio recording, DJ mixing, karaoke, and conferences. Featuring 12 input channels, 99 DSP effects, Bluetooth connectivity, and a USB audio interface, the BOMGE 12F offers versatility and professional-grade sound processing in a compact and durable design.
Figure 1: BOMGE 12F Professional Portable 12 Channel 99 DSP Recording Audio Mixer
2. Safety Information
Please read and understand all safety instructions before operating the device. Keep this manual for future reference.
- Do not expose the device to rain or moisture to prevent fire or electric shock.
- Do not open the casing. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
- Ensure the power source matches the voltage requirements specified for the device (DC 5V).
- Avoid placing the device near heat sources or in direct sunlight.
- Clean only with a dry cloth.
- Keep out of reach of children.
3. Product Overview
The BOMGE 12F mixer features a comprehensive set of controls and inputs for flexible audio management.
Key Features:
- 12 Input Channels: 10 mic/line mono inputs (XLR/6.35mm combo jacks), 6.35mm (L/R) stereo input, RCA (L/R) input, and a USB port.
- 99 DSP Effects: Built-in digital effects processor with a clear screen display for easy monitoring and selection.
- +48V Phantom Power: Independent phantom power available on 10 channels for condenser microphones.
- USB Audio Interface: Connects to a computer for mixing and recording.
- Bluetooth 5.0 Connectivity: Wirelessly stream music from smartphones or tablets.
- Multiple Playback Modes: Supports MP3, U disk, and SD card playback via USB.
- Headphone Monitoring: Dedicated 3.5mm headphone output jack.
- Durable & Lightweight Design: High-precision sealed rotary potentiometers and 5V USB power capability.
Figure 2: BOMGE 12F Mixer Control Layout
4. Specifications
| Feature | Specification |
|---|---|
| Brand Name | BOMGE |
| Model Number | BOMGE-12F |
| Type | Mixers |
| Input Channels | 12 (10 mono mic/line, 1 stereo 6.35mm, 1 stereo RCA, 1 USB) |
| DSP Effects | 99 Digital Effects |
| Phantom Power | +48V (on 10 channels) |
| Bluetooth Version | 5.0 |
| Power Source | DC 5V |
| Built-in Battery | No |
| Inbox Adaptor | No |
| Origin | Mainland China |
| Certification | CE |
| Product Weight | 1.682 kg (approx. 3.7 lbs) |
| Package Dimensions (L x W x H) | 47 cm x 31 cm x 10 cm |
| Product Dimensions (L x W x H) | 37.7 cm x 22.7 cm x 4.3 cm (14.59 in x 8.94 in x 1.69 in) |
Figure 3: BOMGE 12F Mixer Dimensions
5. Setup
5.1 Power Connection
The BOMGE 12F mixer operates on a DC 5V power supply. It does not include an inbox adaptor. You can power the mixer using a mobile phone power bank, a computer's USB port, or a standard 5V USB charger.
- Connect a 5V USB power source to the mixer's DC 5V input port.
- Ensure the power source provides stable output for 2.5A digital accessories.
Figure 4: Compatible 5V Power Supply Options
5.2 Connecting Audio Devices
The mixer supports a wide range of audio input devices:
- Microphones: Connect wired or condenser microphones to the XLR/6.35mm combo jacks (Channels 1-10). For condenser microphones, activate the +48V Phantom Power for the respective channel.
- Musical Instruments: Connect instruments like guitars or electronic keyboards to the 6.35mm inputs.
- Audio Devices: Use the 6.35mm (L/R) stereo input or RCA (L/R) input for other audio sources.
- USB Devices: Insert a USB stick or connect a computer via the USB audio interface.
Figure 5: Connecting Microphones with 48V Phantom Power
Figure 6: Overview of Compatible Devices
6. Operating Instructions
6.1 Basic Mixing
- Adjust the GAIN knob for each input channel to set the input sensitivity.
- Use the HIGH, MID, and LOW EQ knobs to shape the tone of each channel.
- Adjust the PAN knob to position the sound in the stereo field.
- Use the EFF knob to send a signal to the DSP effects processor.
- Control the overall volume of each channel with its respective channel fader.
- Adjust the MAIN LEVEL fader to control the overall output volume.
6.2 DSP Effects
The mixer features 99 digital signal processing (DSP) effects. The screen clearly displays the current effect number.
- Use the DSP+ and DSP- buttons to cycle through the available effects (01-99).
- Adjust the FX VOL knob to control the volume of the applied effect.
- Common effect categories include: HALL, ROOM, DELAY, PINGPONG, ECHO, ECHO REVERB, KARAOKE, PITCH, CHORUS, TREMOLO, FLANGE, AUTO TUNE.
Figure 7: 99 DSP Effects Categories
6.3 Bluetooth Connection
To connect a mobile phone or tablet via Bluetooth:
- Ensure the mixer's Bluetooth function is active (refer to the mixer's display for BT indicator).
- On your mobile device, turn on Bluetooth and search for available devices.
- Select the BOMGE mixer from the list to establish a connection.
- Once connected, you can stream audio wirelessly to the mixer.
Figure 8: Bluetooth Connection Guide
6.4 USB Audio Interface & Playback
The USB port allows for versatile audio handling:
- USB Playback: Insert a USB stick (U disk) or SD card (via adapter) containing MP3 files into the USB port. Use the built-in controls (MENU button, play/pause, skip tracks) to manage playback.
- USB Recording: The mixer can record the mixed audio directly to a connected USB flash drive.
- Computer Connection: Connect the mixer to a computer via USB to use it as an audio interface for recording or playback. The computer will typically receive a stereo mix from the mixer.
Figure 9: USB Input Modes
6.5 Headphone Monitoring
Connect headphones to the 3.5mm headphone output jack to monitor your mix during recording, live performance, or playback.
Figure 10: Headphone Monitoring Setup
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the surface of the mixer. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the mixer in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the mixer with care. Avoid dropping or subjecting it to strong impacts.
- Dust Protection: Cover the mixer when not in use to prevent dust accumulation, especially on faders and knobs.
8. Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| No sound output |
|
| Microphone not working |
|
| Bluetooth connection issues |
|
| No independent channels on PC via USB | The BOMGE 12F typically functions as a stereo USB audio interface, sending a mixed stereo signal to the computer, not individual channels. |
| Mixer is not amplified | This device is an audio mixer, not a power amplifier. It processes and mixes audio signals but does not amplify them for passive speakers. An external power amplifier or active speakers are required for sound reinforcement. |
9. User Tips
- Power Supply Flexibility: Since no power adapter is included, utilize a readily available 5V USB power bank or a computer's USB port for convenient powering, especially for portable setups.
- USB Recording: Take advantage of the direct USB recording feature to capture your mixes or performances without needing an external computer.
- Bluetooth Pairing: For quick and stable wireless audio streaming, ensure your mobile device's Bluetooth is turned on and connect using the mixer's one-key connection feature.
- DSP Effects Exploration: Experiment with the 99 DSP effects to find the perfect sound for your vocals or instruments. The clear screen display makes it easy to see which effect is active.
10. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the BOMGE customer service directly. Keep your purchase receipt as proof of purchase.
