1. Introduction
The Universal Audio Volt 276 is a 2-in/2-out USB audio interface designed for musicians, producers, livestreamers, and content creators. It features a built-in Vintage Mic Preamp mode and a classic analog compressor, enabling high-quality audio capture with up to 24-bit / 192 kHz resolution. This manual provides essential information for setting up, operating, and maintaining your Volt 276 interface.
2. Key Features
- Premium Audio Quality: Capture audio with award-winning 610 preamps, 1176 compressor, and professional-grade converters for up to 24-bit / 192 kHz quality.
- Vintage Preamp Mode: Emulates the sound of classic UA 610 tube preamps for added warmth and character.
- Built-in 76 Compressor: An analog compressor inspired by the classic 1176, offering three optimized presets for vocals, guitars, and fast sources.
- Direct Monitoring: Monitor your input signals with zero latency.
- MIDI I/O: Connect MIDI-compatible devices such as keyboards and drum machines.
- Robust Construction: Features a durable metal chassis with wood side panels.
- USB-C Connectivity: Compatible with Mac, PC, iPad, and iPhone.
3. Setup
3.1 Unboxing and Initial Inspection
Carefully remove the Volt 276 from its packaging. Inspect the unit for any signs of damage. Ensure all included accessories, such as the USB-C to USB-A cable and Quick Start Guide, are present.
3.2 Connecting to Your Computer
The Volt 276 is bus-powered via USB-C. Connect the provided USB-C to USB-A cable from the USB-C port on the rear of the Volt 276 to an available USB port on your computer. For optimal performance, ensure your computer's operating system (Windows or macOS) is up to date.

3.3 Powering the Device
The Volt 276 can be powered directly from your computer via the USB-C connection. If using with a mobile device (iPad/iPhone) or if additional power is required, connect an optional 5V DC power adapter (not included) to the 5V DC input on the rear panel. Use the Power ON/OFF switch to activate or deactivate the unit.

3.4 Driver Installation
For Windows users, it is recommended to download and install the latest drivers from the Universal Audio website. macOS and iOS devices typically do not require additional driver installation.
3.5 Software Bundle
The Volt 276 includes a professional suite of audio and music software. Register your device on the Universal Audio website to access downloads for LUNA Recording System, Ableton Live Lite, UAD plug-ins, and other bundled software.
4. Operating the Volt 276
4.1 Front Panel Controls

- Input 1 & 2 (Combo Jacks): Connect microphones via XLR or line-level/instrument sources via 1/4-inch TRS/TS cables.
- +48V Phantom Power: Activates 48V phantom power for condenser microphones. Press the button above the input jack.
- INST (Instrument) Button: Engages high-impedance input for direct connection of guitars, basses, and other instruments.
- Gain Knobs: Adjust the input level for each channel. Monitor the LED meters to ensure levels are healthy and not clipping (avoid red).
- Vintage Preamp Mode: Activates the 610 tube preamp emulation for a warm, rich sound.
- 76 Compressor: Engages the analog compressor. Select presets for VOC (vocals), GTR (guitars), or FAST (fast transients).
- Monitor Knob: Controls the overall output volume to your studio monitors.
- Direct Button: Enables direct monitoring of your input signals with zero latency.
- Headphones Output: Connect your headphones here. The dedicated volume knob controls the headphone level independently from the main monitor output.
4.2 Rear Panel Connections

- Power Switch: Turns the unit ON/OFF.
- 5V DC Input: For optional external power supply.
- USB-C Port: Connects to your computer for data and bus power.
- MIDI IN/OUT: Standard 5-pin DIN connectors for MIDI devices.
- Monitor Outputs (L/R): Connect your studio monitors using 1/4-inch TRS cables.
4.3 Using the ID Mixer Software (if applicable)
The Volt 276 integrates with the Universal Audio Console application, which provides a virtual mixer for managing inputs, outputs, monitoring, and UAD plug-ins in real-time. This allows for low-latency monitoring with effects.
4.4 Video Overview of Controls
5. Maintenance
5.1 Cleaning
To clean the Volt 276, use a soft, dry cloth. Avoid using liquid cleaners or solvents, as these may damage the finish or internal components.
5.2 Storage
When not in use, store the Volt 276 in a cool, dry place away from direct sunlight and extreme temperatures. Disconnect all cables before storing.
6. Troubleshooting
6.1 No Power/Connectivity
- Ensure the USB-C cable is securely connected to both the Volt 276 and your computer.
- Verify the Power switch on the rear panel is in the ON position.
- If using with a mobile device or experiencing power issues, try connecting an optional 5V DC power adapter.
- Check your computer's USB port functionality with another device.
6.2 No Audio Input/Output
- Confirm that input and output cables are correctly connected and functioning.
- Adjust the Gain knobs for your inputs and the Monitor/Headphone volume knobs.
- For condenser microphones, ensure +48V phantom power is engaged.
- For instruments, ensure the INST button is pressed.
- Check your computer's sound settings to ensure the Volt 276 is selected as the input/output device.
- If using direct monitoring, ensure the Direct button is engaged.
6.3 Latency Issues
- Engage the Direct monitoring feature on the Volt 276 to hear your input signal with zero latency.
- In your DAW, reduce the buffer size. Note that lower buffer sizes require more CPU power.
- Close unnecessary applications on your computer to free up CPU resources.
7. Specifications
| Item Weight | 1.74 pounds |
| Product Dimensions | 4.69 x 7.24 x 2.64 inches |
| Item Model Number | VOLT276 |
| Compatible Devices | Personal Computer, Mac, iPad, iPhone, MIDI devices |
| Hardware Interface | USB 2.0 |
| Supported Software | Ableton, Melodyne, Virtual Drummer, Marshall, Ampeg |
| Operating System | Windows, macOS |
| Connectivity Technology | USB |
| Number of Channels | 2 |
8. Warranty and Support
Universal Audio offers various protection plans for your Volt 276. For detailed warranty information and to explore available protection plans, please refer to the documentation included with your product or visit the official Universal Audio website. For technical support, visit the Universal Audio support page online.





