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Audient iD4 Mk2 review

In this review, I’ll be taking a look at the Audient iD4 Mk2 audio interface. The original iD4 was a success with music makers who wanted something portable with great quality. The iD4 Mk2 delivers improved quality and better styling at an entry-level price. Let’s take a closer look.

About the author

I’m a producer and audio engineer with over 10 years of experience with a wide range of gear and recording techniques. Throughout my career, I have worked with a myriad of different audio interfaces, from Focusrite, Audient, Universal Audio, and more.

Audient iD4 Mk2 audio interface review
Image: Higher Hz

Final verdict on the Audient iD4 Mk2 4.8

For anybody looking for phenomenal preamps, this is the interface for you. It is a bit limiting with only one combo input and one TRS-in. However, for the recording quality, the unit is more than enough for any budding engineer.

What I like

  • Amazing preamps.
  • Improved dynamic range.
  • Affordable.

What I don’t like

  • A bit limiting.
  • The built-in control software can be improved.
Buy Audient iD4 Mk2 at: SweetwaterAmazon


Use these jump links to navigate to the desired section of the review.

I/O and controls 4.0

All the inputs and outputs are identical to that of the original design. On the rear panel, you’ll find your XLR/TRS combo input, as well as two balanced TRS outputs to feed audio to your monitors.

Audient iD4 Mk2 audio interface (rear panel)
Image: Higher Hz

There is a 48 V phantom power switch positioned right next to the combo input on the back, and a USB-C port to the left of the outputs.

On the front panel, you’ll find a TRS instrument level input, to the right of which are two separate headphone jacks (one 1/4-inch, and one 1/8-inch).

Audient iD4 Mk2 audio interface (front panel)
Image: Higher Hz

Gain controls for both inputs, a direct monitoring mix knob, and the master volume control are all located on the top panel.

Above these are LED lights to signal when USB-C and phantom power are engaged, as well as an LED meter. The meters here aren’t very accurate, and you will most likely be resorting to checking levels on your DAW. Under the rotary controls, you’ll notice a mute button and an iD button.

The master control knob actually has a few other handy purposes for you to explore. Firstly, pushing down on it will engage 15 dB of dimming. Pressing on the iD button will turn the master control into a mouse scroll, which you can use to control dials and faders in your DAW by hovering your mouse pointer over them.

Unfortunately, the master control has bumps to set jumps in value, making this far from accurate, and perhaps a bit impractical.

This feature would fare much better with a smooth rotary knob (like an actual mouse wheel) to help you be more precise. Still, the control software is a cool idea that I’d love to see improved upon.

Recording quality 4.5

The Audient iD4 Mk2 has 24-bit depth and a maximum sample rate of 96 kHz. This is a bit disappointing, especially considering that Focusrite’s Scarlett Solo is nearly the same product but with a 192 kHz sample rate. The Scarlett is also $70 cheaper.

However, most recording engineers won’t be affected by this. On the other hand, folks in film, gaming, and podcasting might benefit from having 192 kHz playback.

Aside from all this, the Audient iD4 Mk2 does sound incredible, mostly thanks to its preamps, which I’ll discuss now.

Preamps 5.0

The preamps on the iD4 are an upgrade from the original model’s. The unit boasts a dynamic range of 120 dB, as well as a gain range of 58 dB on the mic input (although slightly less on the instrument-in). They’re transparent, neutral, and are noise-free.

To be clear, these are the same exact preamps found on Audient’s ASP8024-HE (which can run anywhere from $40,000 to $98,000 depending on which model you’re looking at).

To have this kind of quality in a $200 box is no less than mind-blowing, and single-handedly makes up for any flaws the unit might have otherwise.

In use 5.0

The Audient iD4 Mk2 is ideal for lone bedroom recording artists. A combo input and instrument-in is more than enough for any indie singer-songwriters trying to lay down some demos. Furthermore, the preamps alone are worth having around.

Mobile recording 4.5

Its small size and compact design make the iD4 Mk2 ideal for mobile recording. The unit is bus-powered as well, so there’s no need to worry about external power.

Build quality 4.5

The unit is weighty, and wrapped in an all-metal chassis. Its appearance is stoic and professional, and can certainly handle a drop or two.

Software bundle 4.2

Upon purchasing the iD4 Mk2, you’ll receive access to the free ARC software suite. This bundle includes access to Steinberg’s Cubase/Cubasis LE3 DAW, Two Notes Wall of Sound cab simulation, a slew of virtual instruments from GForce and Waldorf, as well as three intro courses from Produce Like a Pro.

For any budding engineers and producers, this is more than enough to get you started.

Compared to other audio interfaces

The iD4 Mk2 is a great budget audio interface and one of the best options under $200. Anyway, here are a few alternatives to consider in comparison.

Audient iD4 vs Focusrite Scarlett 2i2

While the Scarlett may lack built-in software control capabilities as well as the high-end preamps that the Audient comes with, the unit has plenty of merit on its own. For anybody who wants the ability to switch between line and instrument levels, as well as record with two mics at once, the Scarlett is for you.

Read the full Focusrite Scarlett 2i2 3rd Gen review

Audient iD4 vs Motu M2

For anybody looking for MIDI I/O, the Motu M2 is the choice for you. Otherwise, it’s a complete toss up as to which unit is better.

Read the full Motu M2 interface review

Audient iD4 vs Evo 4

The two combo inputs on the Evo 4 are a hard bargain, but to my understanding the preamps on the iD4 Mk2 are better. Probably best to go for the iD4.

Read the full Audient Evo 4 review

Audient iD4 vs Solid State Logic SSL 2+

The SSL 2+ is more expensive, and delivers perhaps the same quality as the Audient iD4. The SSL 2+ does look nicer, at least in my opinion. Flip a coin.

Read the full Solid State Logic SSL 2+ review

Who is the Audient iD4 Mk2 best suited for?

The Audient iD4 is best suited for novice recording engineers with minimal setup, looking for high recording quality. The preamps alone on this unit are mouth-watering, which could be intriguing for more seasoned veterans.

Buy Audient iD4 Mk2 at: SweetwaterAmazon