Avid Digidesign MBox 2 USB Audio / MIDI Interface User Manual

1. Introduction

The Avid Digidesign MBox 2 is a USB-powered audio/MIDI interface designed for computer-based recording. It provides high-quality audio input/output and MIDI connectivity, making it suitable for musicians, producers, and audio engineers. This manual provides essential information for setting up, operating, and maintaining your MBox 2 interface.

2. Safety Information

Please read and understand all safety instructions before using the Digidesign MBox 2. Retain this manual for future reference.

• Do not expose the unit to rain or moisture.
• Do not block any ventilation openings.
• Use only attachments/accessories specified by the manufacturer.
• Refer all servicing to qualified service personnel.
• Ensure proper grounding to prevent electric shock.

3. Package Contents

Verify that all items are present in the MBox 2 package:

• Digidesign MBox 2 USB Audio/MIDI Interface
• USB Cable
• Pro Tools LE Software CD
• User Manual (this document)

4. Product Overview

4.1 Front Panel Controls and Connectors

Figure 1: Front Panel of MBox 2. Features include input gain controls for two channels, monitor level, mix knob, 48V phantom power switch, and a headphone output with dedicated volume.

• Input 1 & 2 Gain Knobs: Adjust the input level for connected microphones or instruments.
• 48V Phantom Power Switch: Activates phantom power for condenser microphones.
• Monitor Knob: Controls the overall output level to your studio monitors.
• Mix Knob: Blends the input signal with the playback signal from your computer for zero-latency monitoring.
• Headphone Output: 1/4-inch stereo jack for connecting headphones, with a dedicated volume control.
• DI/Mic Switches: Selects between direct instrument (DI) input or microphone input for each channel.
• Peak LEDs: Indicate when the input signal is clipping.

4.2 Rear Panel Connectors

Figure 2: Rear Panel of MBox 2. Features include combo XLR/TRS inputs, balanced monitor outputs, S/PDIF digital I/O, MIDI In/Out, and a USB 2.0 port.

• Input 1 & 2 (XLR/TRS Combo Jacks): Connect microphones (XLR) or line-level instruments (TRS).
• Monitor Outputs (Left/Right): Balanced 1/4-inch TRS outputs for connecting to studio monitors.
• S/PDIF Digital I/O: RCA connectors for digital audio input and output.
• MIDI In/Out: 5-pin DIN connectors for connecting MIDI devices.
• USB Port: Connects the MBox 2 to your computer for data transfer and power.

5. Setup

5.1 System Requirements

Ensure your computer meets the minimum requirements for Pro Tools LE software and the MBox 2 interface. Refer to the Pro Tools LE documentation for detailed system specifications.

• Operating System: Compatible with Windows and Mac operating systems (specific versions detailed in Pro Tools LE manual).
• USB Port: Available USB 2.0 port.
• Software: Pro Tools LE (included).

5.2 Hardware Connection

1. Connect to Computer: Use the provided USB cable to connect the MBox 2 to an available USB port on your computer. The MBox 2 is USB-powered, so no external power adapter is typically needed.
2. Connect Microphones/Instruments:
   • For microphones, connect via the XLR inputs on the rear panel. If using a condenser microphone, activate 48V phantom power using the front panel switch.
   • For line-level instruments (e.g., keyboards, guitar preamps), connect via the TRS inputs on the rear panel.
   • For direct instrument input (e.g., electric guitar/bass), use the DI/Mic switch on the front panel.
3. Connect Monitors/Headphones:
   • Connect your studio monitors to the Left and Right Monitor Outputs on the rear panel.
   • Plug your headphones into the Headphone Output on the front panel.
4. Connect MIDI Devices (Optional): Use MIDI cables to connect your MIDI controller or other MIDI devices to the MIDI In/Out ports on the rear panel.

5.3 Software Installation

1. Insert the Pro Tools LE Software CD into your computer's optical drive.
2. Follow the on-screen instructions to install Pro Tools LE and the necessary drivers for the MBox 2.
3. Restart your computer if prompted.
4. Launch Pro Tools LE and configure the MBox 2 as your audio playback and recording device in the software's preferences.

6. Operating Instructions

6.1 Recording Audio

1. Connect your microphone or instrument to the MBox 2 inputs.
2. Adjust the Input Gain knob for the corresponding channel. Monitor the Peak LED to ensure the signal does not clip (turn red).
3. In Pro Tools LE, create a new audio track and select the appropriate MBox 2 input.
4. Arm the track for recording and begin recording your audio.
5. Use the Mix knob on the MBox 2 to adjust the balance between your live input and the computer's playback for comfortable monitoring.

6.2 MIDI Operation

1. Connect your MIDI controller to the MBox 2 MIDI In port.
2. In Pro Tools LE, create a new MIDI track and select the MBox 2 MIDI input.
3. You can now record MIDI data from your controller into Pro Tools LE.

7. Maintenance

• Keep the MBox 2 clean by wiping it with a soft, dry cloth.
• Avoid using liquid cleaners or solvents.
• Store the unit in a cool, dry place away from direct sunlight and extreme temperatures.
• Regularly check cable connections for wear and tear.

8. Troubleshooting

• No Power/No Lights: Ensure the USB cable is securely connected to both the MBox 2 and a functioning USB port on your computer. Try a different USB port or cable.
• No Audio Input:
  • Check all cable connections.
  • Verify input gain knobs are turned up.
  • Ensure 48V phantom power is engaged for condenser microphones.
  • Confirm the correct input is selected in Pro Tools LE.
• No Audio Output:
  • Check monitor and headphone volume knobs.
  • Verify monitor cables are correctly connected.
  • Ensure MBox 2 is selected as the playback device in your computer's sound settings and Pro Tools LE.
• Software Not Recognizing MBox 2: Reinstall the MBox 2 drivers and Pro Tools LE software. Ensure your operating system is compatible.

9. Specifications

10. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your product or visit the official Avid website. Keep your proof of purchase for warranty claims.

Online Resources:

• Avid Support Website: www.avid.com/support
• Pro Tools LE Documentation: Refer to the software manual for in-depth usage and troubleshooting.