Introduction
The Apogee Duet 2 is a portable 2-input, 4-output USB audio interface designed for Mac. It provides high-quality audio conversion and microphone preamps, enabling studio-quality recordings of vocals, instruments, and other audio sources. This manual provides essential information for setting up, operating, and maintaining your Duet 2.
Setup
1. System Requirements
- Compatible with Macintosh computers.
- Requires macOS operating system.
- USB 2.0 port.
2. Software Installation
Before connecting the Duet 2, download and install the latest Apogee Maestro 2 software and drivers from the official Apogee website. Maestro 2 is essential for controlling the Duet 2's settings and features.
3. Connecting the Duet 2
- Connect the Duet 2 to your Mac using a standard USB cable. The device is bus-powered.
- Attach the breakout cable to the I/O port on the rear of the Duet 2. This cable provides XLR inputs for microphones, 1/4-inch instrument inputs, and balanced 1/4-inch line outputs.
- Connect your microphones, instruments, and studio monitors to the appropriate connectors on the breakout cable.
- Plug headphones into the 1/4-inch headphone jack located on the front panel.


Operating Instructions
1. Front Panel Overview

- Large Control Knob: This multi-function knob controls input gain, output volume, and other parameters. Pressing the knob cycles through different control modes.
- OLED Display: A full-color OLED screen provides visual feedback for metering, input/output levels, phantom power status, Soft Limit, and other settings.
- Configurable Touchpads: Two touch-sensitive pads on either side of the control knob can be assigned functions like Mute Outputs, Dim Outputs, Sum to Mono, or Toggle Headphone Source via the Maestro 2 software.
- Headphone Output: A 1/4-inch stereo jack for connecting headphones.

2. Using Maestro 2 Software
Maestro 2 is the control application for your Duet 2. It allows you to:
- Adjust input gain for microphones and instruments.
- Enable 48V phantom power for condenser microphones.
- Activate Soft Limit to prevent digital clipping.
- Configure output routing and monitoring options.
- Assign functions to the touchpads.
3. Recording and Monitoring
The Duet 2 is Core Audio compatible, making it suitable for use with various Digital Audio Workstations (DAWs) such as Logic Pro, GarageBand, Pro Tools, Ableton Live, and Studio One. Ensure the Duet 2 is selected as your audio input and output device within your DAW's preferences.
- Input Gain: Use the large control knob or Maestro 2 to set appropriate input levels for your microphones and instruments. The OLED display provides visual metering.
- Phantom Power: For condenser microphones, activate 48V phantom power via Maestro 2.
- Soft Limit: Engage Soft Limit in Maestro 2 to provide analog clipping protection, allowing for higher recording levels without harsh digital distortion.
- Direct Monitoring: Utilize direct monitoring features within Maestro 2 or your DAW to monitor your input signals with minimal latency.
Maintenance
To ensure the longevity and optimal performance of your Apogee Duet 2, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid abrasive cleaners or solvents.
- Storage: Store the Duet 2 in a clean, dry environment away from extreme temperatures and direct sunlight. When traveling, use a protective case to prevent scratches and damage.
- Cable Care: Handle the breakout cable and USB cable with care. Avoid sharp bends or excessive pulling that could damage the connectors or wiring.
Troubleshooting
If you encounter issues with your Apogee Duet 2, consider the following troubleshooting steps:
- Device Not Recognized:
- Ensure the USB cable is securely connected to both the Duet 2 and your Mac.
- Try connecting to a different USB port on your Mac.
- Verify that the latest Maestro 2 software and drivers are installed. Reinstall if necessary.
- Restart your Mac and the Duet 2.
- Audio Dropouts or Instability:
- Ensure your macOS is up to date.
- Check for any conflicting audio drivers or software.
- Increase the buffer size in your DAW's audio preferences.
- Disconnect other USB devices to rule out bandwidth issues.
- No Sound Output:
- Check all cable connections to your monitors and headphones.
- Verify that the Duet 2 is selected as the output device in your Mac's Sound Preferences and your DAW.
- Ensure output volume is not muted or set too low on the Duet 2 or in Maestro 2.
- No Input Signal:
- Confirm microphones and instruments are correctly connected to the breakout cable.
- For condenser microphones, ensure 48V phantom power is enabled in Maestro 2.
- Check input gain levels in Maestro 2 and your DAW.
- Verify the Duet 2 is selected as the input device in your Mac's Sound Preferences and your DAW.
For further assistance, refer to the official Apogee support resources online.
Specifications
| Item Weight | 1.1 pounds |
| Product Dimensions | 6.3 x 4 x 0.8 inches |
| Model Number | DUET-USB |
| Color | Satin Aluminum |
| Compatible Devices | Macintosh |
| Computer Platform | Macintosh |
| Hardware Interface | USB |
| Connectivity Technology | USB |
| Number of Channels | 2 Analog Inputs, 4 Analog Outputs |
| Microphone Preamps | 2 with up to 75dB of gain |
| Phantom Power | Selectable 48V |
| A/D and D/A Conversion | 24-bit/192kHz |
| Special Features | Full color OLED display, Configurable touchpads, Apogee Soft Limit Technology |
Warranty and Support
The Apogee Duet 2 is designed and manufactured in the U.S.A. For detailed warranty information and technical support, please visit the official Apogee Electronics website. Keep your purchase receipt as proof of purchase for warranty claims.
Official Apogee Website: www.apogeedigital.com





