Presonus - AudioBox iTwo

2x2 USB 2.0 / Ipad / MIDI Recording Ineterface w/ 2 mic input

Portable, High Fidelity, and Multiplatform

Excellent choices for mobile musicians, sound designers, and podcasters, the USB 2.0 bus-powered AudioBox iOne and iTwo provide high-quality audio I/O for Mac®, PC, and Apple iPad®. These compact, ruggedly built interfaces offer high-performance Class A mic preamplifiers, record 24-bit audio at up to 96 kHz, and include powerful, easy-to-use Studio One® Artist DAW for Mac and Windows and Capture™ Duo recording software for iPad.

Tightly Integrated Software—As You Expect from PreSonus!

PreSonus is famous for its tightly integrated hardware/software solutions, and the AudioBox i series is no exception. Of course you get Studio One Artist. But we didn’t stop there!

Class A All the Way

PreSonus’ award-winning analog signal processors and microphone preamps have long been popular among top professionals and home enthusiasts alike. So when you see the name PreSonus, you expect top audio quality—and the AudioBox i series delivers.

Heavy Metal Never Weighed So Little!

AudioBox iOne and iTwo are mobile interfaces in the best sense of the term. They can sit on a tabletop or fit in the pocket of a backpack or laptop bag and are powered by the USB bus, so you don’t have to mess with a “wall wart” power supply or AC cord. And they’re built to withstand the rigors of travel.

Two to Go, Please!

The AudioBox i series consists of two great 24-bit, 96 kHz mobile-recording solutions: the compact AudioBox iTwo and subcompact AudioBox iOne. 




PreSonus AudioBox i Series QSG, Part 1 of 6: Unboxing and Registering Online

PreSonus AudioBox i Series QSG, Part 2 of 6: Interface Overview

PreSonus AudioBox i Series QSG, Part 3 of 6: Mac Computers

PreSonus AudioBox i Series QSG, Part 4 of 6: Windows Computers

PreSonus AudioBox i Series QSG, Part 5 of 6: iPad Connectivity

PreSonus AudioBox i Series QSG, Part 6 of 6: Introduction to Studio One Artist


Computer system requirements:

Below are the minimum computer-system requirements for the AudioBox iOne and AudioBox iTwo:


  • Windows® 7 x64/x86 SP1, Windows 8 x64/x86 or later
  • Intel Core Duo processor (Intel Core i3 or better recommended)
  • 4 GB RAM (8 GB or more recommended)


  • Mac® OS X 10.7.5 or later
  • Intel® Core™ Duo processor (Intel Core i3 or better recommended)
  • 4 GB RAM (8 GB or more recommended)

Windows and Mac Systems

  • USB 2.0 Port
  • Internet connection for registration and download of included software
  • Internal or external 7200 RPM storage drive highly recommended
  • Monitor with at least 1280x800 resolution

Apple iPad

  • iPad Air, iPad mini with Retina display, iPad (4th generation), iPad mini, iPad (3rd generation), iPad 2
  • iOS 7.0.1 or higher


The minimum system requirements may differ for DAWs other than Studio One. Please check the requirements for your DAW of choice with its manufacturer.

Note that the speed of your processor, amount of RAM and size and speed of your hard drive will greatly affect the overall performance of your recording system. Also, a more powerful system (faster processor with more RAM) will allow for lower latency (signal delay) than you might experience while monitoring audio or MIDI signals. Monitor resolution for both PC and Macintosh should be no lower than 1024x768 pixels.



AudioBox iOne

AudioBox iTwo

Microphone Preamp

Type XLR female, balanced XLR female, balanced
Frequency Response (±3.0 dB) 10 Hz to 40 kHz 10 Hz to 40 kHz
Input Impedance (Balanced) 1,200Ω 1,200Ω
THD+N (unwtd, 1 kHz @ +4 dBu Output, Unity Gain) < 0.008% < 0.008%
S/N Ratio (Unity Gain, Ref. = +4 dBu, 20 Hz to 22 kHz) > 95 dB > 95 dB
Common Mode Rejection Ratio (1 kHz, 52 dB Gain) > 65 dB  
Gain Control Range (± 1 dB) 0 dB to 52 dB 0 dB to 52 dB
Max Input Level (Unity Gain, 1 kHz @ 0.5% THD+N) +10 dBu +10 dBu
Phantom Power (±2 VDC) +48 VDC +48 VDC

Line Input

Type ¼" TRS female, balanced ¼" TRS female, balanced
Input Impedance 10 kΩ 10 kΩ

Instrument Input

Type ¼" TS female, unbalanced ¼" TS female, unbalanced
Input Impedance 1 MΩ 1 MΩ

Line Outputs

Type ¼" TRS female, balanced ¼" TRS female, balanced
Output Impedance 51Ω 51Ω

Headphone Output

Type ¼" TRS active stereo ¼" TRS active stereo
Maximum Output 60 mW/ch. @ 60Ω Load 60 mW/ch. @ 60Ω Load
Frequency Response (±1.0 dB) 20 Hz - 30 kHz 20 Hz - 30 kHz


Type   Dual 5-pin female DIN

Digital Audio

ADC Dynamic Range (A-wtd, 48 kHz Sample Rate) 105 dB 105 dB
DAC Dynamic Range (A-wtd, 48 kHz Sample Rate) 105 dB 105 dB
Bit Depth 24 24
Reference Level for 0 dBFS +10 dBu +10 dBu
Internal Sample Frequency Selections (kHz) 44.1, 48, 88.2, 96 44.1, 48, 88.2, 96
Power USB bus-powered USB bus-powered


Height 1.71” (43.5 mm) 1.71” (43.5 mm)
Depth 5.31" (135 mm) 5.31" (135 mm)
Width 5.91” (150 mm) 7.56” (192 mm)
Weight 1.35 lbs (0.62 kg) 1.35 lbs (0.62 kg)