1. Introduction
The BOMGE 22M Mini 2 Channel USB Audio Interface is a versatile and portable device designed for high-quality audio recording, streaming, and podcasting. It offers 48 kHz audio resolution, two combined XLR/MIC/LINE inputs with 48V phantom power, and multiple output options, making it suitable for various audio production needs.
Video: Overview of the BOMGE 22M Mini 2 Channel USB Audio Interface features and connections.
2. Safety Information
- Do not expose the device to rain or moisture.
- Do not open the casing; refer all servicing to qualified personnel.
- Ensure proper ventilation to prevent overheating.
- Use only the specified power source (DC).
- Keep out of reach of children.
3. Package Contents
- BOMGE 22M Mini 2 Channel USB Audio Interface
- USB Type-C Power Cord
- User Manual (this document)
4. Product Overview
The BOMGE 22M features a compact design with intuitive controls and essential connectivity for audio professionals and enthusiasts.
Image: Front panel controls and interfaces, including 1/2 CH Composite XLR Interface, Phantom Power button, Monitoring button, Headphone Interface, 1 Channel Decibel Fader, 2 Channel Decibel Fader, Monitoring Knob, and Headphone Knob.
Image: Detailed view of the professional interfaces, damping knob, channel decibel faders, and function buttons.
5. Setup
5.1 Powering the Device
Connect the provided USB Type-C power cord to the USB port on the rear of the BOMGE 22M and to a compatible DC power source (e.g., a computer USB port or a USB power adapter).
Image: USB Type-C power connection.
5.2 Connecting to a Computer
Use a USB cable to connect the BOMGE 22M to your Mac or PC. The device is plug-and-play and typically does not require additional driver installations for Mac OS and Windows XP or later.
Image: BOMGE 22M connected to a laptop for 16-bit 48kHz audio recording.
5.3 Connecting Microphones and Instruments
The BOMGE 22M features two combined XLR/MIC/LINE inputs. You can connect microphones (XLR) or instruments/line-level devices (6.35mm TRS/TS) to these inputs.
Image: Connecting microphones/instruments to the inputs.
5.4 Activating 48V Phantom Power
If you are using condenser microphones, press the '48V' button to supply phantom power. The indicator light will illuminate when active. Ensure dynamic microphones do not receive phantom power unless specifically designed for it.
5.5 Connecting Output Devices
Connect your PA speakers, active monitors, or amplifiers to the two independent RCA stereo jacks (LINE OUTPUT) on the rear panel. You can also connect headphones to the 1/4" headphone output for monitoring.
Image: Connection diagram with various external devices.
6. Operating Instructions
6.1 Adjusting Input Gain
Use the Channel Decibel Faders (GAIN sliders) for Input 1 and Input 2 to adjust the input level of your microphones or instruments. Monitor the level indicators to prevent clipping (distortion).
6.2 Monitoring
The BOMGE 22M offers zero-latency direct monitoring. Press the 'DIRECT MONITOR' button to hear your input signal directly through your headphones without any delay from your computer. Adjust the 'MONITOR' knob for overall output volume and the 'PHONES' knob for headphone volume.
Image: Plug & Play with Monitoring feature.
6.3 Recording with Software
The BOMGE 22M is compatible with popular recording software such as Avid Pro Tools, Ableton Live, and Steinberg Cubase. Once connected to your computer, select the BOMGE 22M as your audio input/output device within your software's audio settings.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Always handle cables by the connector, not the wire, to prevent damage.
8. Troubleshooting
8.1 No Sound Output
- Check all cable connections (USB, inputs, outputs, headphones).
- Ensure the 'MONITOR' and 'PHONES' knobs are turned up.
- Verify the BOMGE 22M is selected as the audio output device in your computer's sound settings and recording software.
- Confirm the input gain sliders are not at minimum.
8.2 Distorted Sound
- Reduce the input gain using the Channel Decibel Faders to prevent clipping.
- Check the volume levels in your recording software and computer.
- Ensure cables are securely connected and not damaged.
8.3 Phantom Power Not Working
- Ensure the '48V' button is pressed and its indicator light is on.
- Verify your condenser microphone is properly connected.
- Check the USB connection to ensure sufficient power supply.
8.4 Device Not Recognized by Computer
- Try connecting to a different USB port on your computer.
- Restart your computer.
- Ensure your operating system (Mac OS, Windows XP or later) is up to date.
9. Specifications
| Feature | Description |
|---|---|
| Model Number | 22M |
| Type | Channel Strips & Preamps |
| Audio Resolution | 16-bit / 48 kHz |
| Inputs | 2 x Combined XLR/MIC/LINE inputs |
| Outputs | 2 x RCA Stereo Line Outputs, 1 x 1/4" Headphone Output |
| Phantom Power | +48V |
| Power Source | DC (USB Powered) |
| Built-in Battery | No |
| Dimensions (L x W x H) | 14 cm x 10.5 cm x 4.3 cm (5.5 in x 4.1 in x 1.6 in) |
| Weight | 0.344 kg (225g as per image) |
| Operating System Compatibility | Mac OS, Windows XP or later |
Image: Product dimensions and weight.
10. User Tips
- Driver-Free Operation: The BOMGE 22M is designed for plug-and-play functionality. No specific drivers are required for Mac OS or Windows XP and later versions, simplifying setup.
- Zero-Latency Monitoring: Utilize the 'DIRECT MONITOR' feature to hear your input signal in real-time, which is crucial for recording vocals or instruments without distracting delays.
- Gain Staging: Always set your input gain levels carefully using the channel faders to ensure a strong signal without clipping, which can lead to distortion.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the BOMGE Muisic Store directly through your purchase platform. Keep your proof of purchase for any warranty claims.
