After the computer and DAW, arguably the most important component of any studio is the audio interface. It may seem like spending a fortune is the only way to get the best digital recording and playback quality. However, “you get what you pay for” need not always apply. Many smaller studios are taking advantage of USB audio interfaces for their I/O needs with fantastic results. Even some of the most affordable options can supply 24-bit/192 kHz quality, which is as good as it gets!
We’ll examine a handful of the best USB audio interfaces for home/project studios on a budget, when simple I/O is all that’s necessary. A USB interface with 2 to 4 inputs and monitor outs does the trick and does it well.
USB Audio Interfaces: Standard Features
Among the following selections are a set of uniform features you’ll find in any audio interface. Keeping the budget-friendly small home studio in mind, at the very least, sub-$300 units carry a single XLR input/preamp, +48V phantom power, stereo TRS outs, and a 1/4″ headphone input.
In most cases, single preamp interfaces also have a dedicated 1/4″ line input technically making them 2-in/2-out devices. Some of the selected interfaces are more feature-rich than others, so do a little bit of homework and choose what best suites your studio!
Audient iD4 MKII
The Audient iD4 MKII is a USB-C 2-in/2-out interface with a single mic preamp and instrument input. The available inputs can be used to track vocals and a line-level instrument simultaneously, for example. Operating at 24-bit/96 kHz, the iD4 is a compact, high-quality interface at an inexpensive price point.
Audient uses the same Class-A mic preamp in their entire product range, from full-format consoles to the simple iD4. This interface is a good shout for a home studio that has minimal I/O needs, without sacrificing recording quality.
MKII introduces upgraded converters for high quality digital recording at a beginner’s price-point.
Audient EVO 4
Audient’s EVO interface series aims at providing ultimate usability. The EVO 4 comes with 2 XLR mic inputs, 1 instrument input, and a headphone out, bus-powered by USB-C.
Whether it’s recording a podcast, making a beat, or just laying down some ideas quickly, the EVO has superior functionality. There’s even a Smartgain mode which automatically adjusts your microphone levels, so it’s super beginner-friendly. It’ll let you perfectly match both channels, or control them at the same time. An excellent feature for new recording engineers to avoid clipping their inputs!
It’s hard to say whether anyone expected SSL to jump into the 2/2 interface game, but they absolutely did. One of the main selling points of the SSL 2 is its switchable Legacy 4K modes on each preamp. This is supposed to add some analog color to what are normally pretty sterile sounding digital preamps. It essentially activates a high-end boost and some subtle harmonic distortion the 4000 series consoles are known for.
As far as USB audio interfaces go, having the SSL name and some of that magic would be a cool addition to any home studio.
IK Multimedia iRig Pro Duo
Ultra-portable devices like those in IK Multimedia’s iRig range are frequently overlooked as interfaces competitive with desktop counterparts. However, the iRig Pro Duo is a full-featured interface in spite of its small footprint.
The 2-in/2-out unit houses dual XLR/TRS hybrid inputs with studio-quality IK preamps, and two balanced TRS outs are onboard for monitor connections. Even though it can fit in your hand, the Pro Duo has all of the features of much larger interfaces, including +48V phantom power, MIDI I/O, and 24-bit converters.
This is obviously an ideal choice if portability is a concern, but even sat on a desk, the iRig Pro Duo performs like a much larger beast.
Steinberg UR22 mkII
Steinberg’s UR22 interface is a phenomenal choice if 192 kHz support is on the checklist. The UR22 sports two hybrid mic/line inputs with D-Pre[amps], 5-pin MIDI I/O, and two TRS line outs for monitoring. Input 2 also has a Hi-Z switch specifically designed for tracking high impedance instruments (like guitars) direct.
It all comes housed in a rugged metal chassis, so tossing it into a backpack definitely won’t hurt if you travel and record often.
Focusrite Scarlett 2i2
As its name suggests, the Scarlett 2i2 is one of the most popular 2-in/2-out USB audio interfaces on the market.
Focusrite touts the 2i2’s latency as being the lowest of any competitor, and its streamlined, no-nonsense design make it a solid choice for basic home set-ups. Sure, “streamlined” might be interpreted as “featureless” by some, but the device’s two hybrid mic/line inputs and TRS outs can handle typical assignments with ease.
M-Audio M-Track 2×2
Another with impressive 24-bit/192 kHz support, the M-Audio M-Track 2×2 is a fantastic interface when utmost quality is desired.
The 2×2 interface has a single hybrid mic/line input and a 1/4″ instrument input, with standard TRS outs. Additionally, a feature overlooked by competitors is the M-Track’s “future-proof” design. That’s right: the M-Track is USB-C supported!
If you’re using a new laptop and tired of the “dongle life,” the M-Track 2×2 is a perfect choice.
Mackie Onyx Blackjack
Inspired by Mackie’s flagship Onyx-i series mixers, the Blackjack is a 2×2 USB interface with some of the best preamps and AD/DA converters in the price range. Onyx mic pres are found in Mackie’s high-end consoles, but a pair were fitted to the Blackjack at a reasonable cost. The interface also carries Cirrus Logic converters for 114dB of dynamic range.
Apart from preamp and converter quality, the Blackjack is more or less a no-frills piece of hardware. You might notice, though, that it was built at a 25-degree incline for comfortable accessibility on a tabletop. Ergonomic design aside, the Onyx Blackjack is relatively barebones.
USB Audio Interfaces: Conclusion
Not intended to be a comprehensive review, this is just an introduction to the various USB audio interfaces you’ll find on the market.
When 2/2 is all you need, you’ll find there are plenty of options out there!