Audient ID4 USB Audio Interface 2-in/2-out (Discontinued)


93 out of 100. Incorporating 550+ ratings and reviews.

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Audient ID4 USB Audio Interface 2-in/2-out
Audient ID4 USB Audio Interface 2-in/2-out

Meta Analysis Overview

Our rating of 93/100 is based on analysis of 550+ sources comprised of online reviews and discussions. Under the Pros and Cons headings below you'll find a condensed analysis of what those owners and users have been saying. Feel free to ask questions or add your thoughts in the comments section.

NB: This has been superseded by the Audient iD4 MKII.

The ID4 packs their class A mic preamp and JFET DI circuit into a compact and lightweight metal enclosure.

It is designed to be class-compliant, so it works with the iPad and other iOS devices, just as it does with Mac and Windows-based computers.

Since this unit is bus-powered, you'll need a powered USB Hub to get it working with the iPad. Thankfully, this slight inconvenience is minor compared to the benefits of utilizing Audient quality recordings on the go.

Other features include zero-latency monitoring, mix and pan controls, 2 separate headphone outputs, and a console-like interface.


  • A/D Resolution: 24-bit/96kHz
  • Preamp: 1 x Audient Class A Mic Preamp, 1 x JFET DI
  • Simultaneous Channels: 2
  • Inputs: 1 x XLR-1/4" Combo (Mic/Line), 1 x 1/4" DI (Instrument)
  • Outputs: 2 x 1/4" Monitor, 1 x 1/4" (Headphones), 1 x 1/8" (Headphones)
  • Power: USB Bus Powered
  • Phantom Power: 48V


The Audient ID4 continues to get acclaim from users with different experience levels, including musicians, voice-over artists, home studio owners, and many more. Most reviewers not only praise its performance, but go as far as recommending it for small home studios, or for those who do on-site mobile recording. The sound quality received the most commendation, followed by ease of use and portability.


There are a few users who had qualms about the ID4 resetting its headphone output settings when turned off but still praised the unit for its solid build and transparent sound. Interestingly, there are a few users who dislike the transparency of ID4's mic preamp.


Overall, the Audient ID4 is the ideal portable audio interface for those who want to take advantage of the iPad's mobility, without compromising sound quality.

This has been discontinued so if you're looking for a new interface then check out our guides to The Best Audio Interfaces Under $200, The Best iPad Audio Interfaces and The Best USB Audio Interfaces.

About the Author

Raphael PulgarRaphael Pulgar

An audio engineer of 20 years who specializes in rock and metal recordings, he also plays guitar and produces original music for his band and other content creators.