Introduction
The PreSonus AudioBox iOne is a compact and rugged 2x2 USB/iPad audio interface designed for mobile musicians and podcasters. It offers high-performance audio recording and playback with professional-quality 24-bit/96 kHz converters. This manual provides essential information for setting up, operating, and maintaining your AudioBox iOne to ensure optimal performance.
Key Features
- Bus-Powered Design: Operates via USB 2.0, eliminating the need for an external power supply, ideal for portable use with Mac, Windows, or iPad.
- High-Quality Preamplifier: Features one microphone input with a low-noise, high-headroom, Class A mic preamplifier and +48V phantom power for condenser microphones.
- Instrument Input: Includes one instrument input for direct connection of guitars, basses, and other high-impedance instruments.
- Studio-Grade Converters: Supports up to 24-bit/96 kHz recording and playback for clear and detailed audio.
- Direct Monitoring: Allows for zero-latency monitoring of your input signals.
- Balanced Outputs: Equipped with two balanced 1/4-inch TRS main line-level outputs for connecting to studio monitors.
- Headphone Output: Stereo headphone output with independent level control for private monitoring.
- Durable Construction: Housed in a robust metal chassis, built to withstand travel and frequent use.
- Software Bundle: Comes with PreSonus Studio One Artist DAW software for Mac and Windows, and works with the free Capture Duo for iPad recording software, enabling wireless transfer of recordings to Studio One. Also includes the Studio Magic plug-in suite.
Product Overview
Familiarize yourself with the physical layout and connections of your AudioBox iOne interface.
Front Panel

Image: Front view of the PreSonus AudioBox iOne, showing the XLR microphone input, 1/4-inch instrument input, gain controls, 48V phantom power button, direct monitor button, main output level knob, and headphone output with level control.
Rear Panel

Image: Rear view of the PreSonus AudioBox iOne, displaying the USB 2.0 port for PC/Mac power, a device port for iPad connection, and balanced 1/4-inch TRS main outputs (Left and Right).
Official Product Overview Video
Video: An official overview of the PreSonus AudioBox iOne and iTwo interfaces, highlighting their features, connectivity, and integration with Studio One and Capture Duo software for seamless recording workflows.
Setup
1. Connecting to Computer/iPad
- For PC/Mac: Connect the AudioBox iOne to your computer using the provided USB 2.0 cable. The interface is bus-powered, so no additional power supply is needed.
- For iPad: Connect the AudioBox iOne to your iPad using a compatible USB cable (e.g., Apple Lightning to USB Camera Adapter for newer iPads, or a standard USB-A to USB-B cable with a powered USB hub for older iPads if power is insufficient).
2. Driver Installation
- Windows: Download and install the latest AudioBox iOne drivers from the PreSonus website. Follow the on-screen instructions.
- Mac/iPad: The AudioBox iOne is class-compliant with macOS and iOS, meaning no special drivers are typically required. It should be recognized automatically.
3. Software Installation
- Studio One Artist (PC/Mac): Register your AudioBox iOne on the PreSonus website to receive your Studio One Artist license and download instructions. Install the software on your computer.
- Capture Duo (iPad): Download the free Capture Duo app from the Apple App Store. This app allows for one-tap recording directly on your iPad and wireless transfer to Studio One Artist.
Operating Instructions
1. Connecting Microphones and Instruments
- Microphone: Connect your microphone to the XLR input (Mic 1) on the front panel. If using a condenser microphone, press the '48V' button to engage phantom power.
- Instrument: Connect your guitar, bass, or other instrument to the 1/4-inch input (Inst 2) on the front panel.
2. Setting Input Levels
- Adjust the corresponding 'Gain' knob for Mic 1 or Inst 2 until the signal is strong but does not clip (indicated by the 'Clip' LED).
3. Monitoring
- Connect your headphones to the 1/4-inch headphone jack. Adjust the headphone level knob for comfortable listening.
- Engage the 'Direct' button for zero-latency monitoring of your input signal directly from the interface.
4. Recording with Software
- Open Studio One Artist (PC/Mac) or Capture Duo (iPad).
- Select the AudioBox iOne as your audio device in the software settings.
- Create a new track and select the appropriate input (Mic 1 or Inst 2).
- Arm the track for recording and begin your performance.

Image: A musician playing an electric guitar, connected to the PreSonus AudioBox iOne, which is then connected to a laptop running recording software.

Image: A screenshot of the Studio One Artist Digital Audio Workstation (DAW) interface on a computer monitor, showing multiple audio tracks and mixing controls.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the AudioBox iOne. Avoid using abrasive cleaners or solvents.
- Storage: Store the unit in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Cable Management: Ensure all cables are properly coiled and stored to prevent damage.
Troubleshooting
- No Power: Ensure the USB cable is securely connected to both the AudioBox iOne and your computer/iPad. For iPads, a powered USB hub might be necessary.
- No Sound Input: Check that the correct input (Mic 1 or Inst 2) is selected in your recording software. Verify gain levels are set appropriately. Ensure 48V phantom power is engaged for condenser microphones.
- No Sound Output: Check the main output and headphone volume knobs. Ensure the AudioBox iOne is selected as the output device in your computer's sound settings and recording software.
- Latency Issues: Use the 'Direct' monitoring feature for zero-latency input monitoring. Adjust buffer size settings in your DAW to optimize performance.
- Software Not Recognizing Device: Reinstall drivers (Windows) or restart your computer/iPad. Ensure the latest version of your recording software is installed.
Specifications
| Feature | Specification |
|---|---|
| Item Weight | 1.35 pounds |
| Product Dimensions | 9 x 3.25 x 8.75 inches |
| Item Model Number | AudioBox iOne |
| Hardware Interface | USB 2.0 |
| Number of Channels | 2 |
| Microphone Preamps | 1 (Class A, +48V Phantom Power) |
| Instrument Inputs | 1 |
| Sample Rate / Bit Depth | Up to 96 kHz / 24-bit |
| Outputs | 2 x 1/4-inch TRS Main Outputs, 1 x 1/4-inch Headphone Output |
| Supported Software | Ableton Live Lite, Studio One Artist, Studio Magic Plug-in Suite, Capture Duo for iPad |
| Compatible Devices | PC, Mac, iPad |
| Connectivity Technology | USB |
Warranty and Support
PreSonus products typically come with a limited manufacturer's warranty. For specific warranty details, registration, and technical support, please visit the official PreSonus website or contact their customer service. Online resources, FAQs, and user forums are also available to assist you with any questions or issues.
For the most up-to-date information and support, please refer to the official PreSonus website: www.presonus.com





