Best of
The Best Audio Interfaces (2026)
The best audio interfaces of 2026: two-input and four-input USB interfaces compared on preamps, metering, monitoring, and software.
Our top picks at a glance
Best overall
Focusrite Scarlett 2i2 4th Gen, 2-Input USB Audio Interface (Interface Only)Home studios recording a voice and a guitar, two voices, or a stereo pair.
Best for beginners
Focusrite Scarlett Solo 4th Gen, 2-Input USB Audio Interface (Interface Only)Solo singers, guitarists, and podcasters recording one voice or one instrument at a time.
Best metering
MOTU M2 USB-C Audio Interface, 2-Input (Interface Only)Recordists who set levels by eye as well as by ear, and who want very low latency.
The Focusrite Scarlett 2i2 4th Gen is the best audio interface for most people: two mic preamps, Auto Gain, and Clip Safe protection against the loud moments that ruin takes. Solo recordists on a budget should get the Scarlett Solo 4th Gen instead. Vocalists who want finished-sounding takes should look at the Universal Audio Volt 276 for its hardware compressor, and anyone recording four sources at once should get the MOTU M4.
The picks, ranked
Best overall
Focusrite Scarlett 2i2 4th Gen, 2-Input USB Audio Interface (Interface Only)
The default two-input interface, with clipping protection built in.
The 2i2 is the interface most people should buy: two proper mic preamps, Auto Gain and Clip Safe to stop the two most common beginner errors, and a clean 120 dB signal path. It handles a voice and a guitar, two voices, or a stereo pair, and it does so without asking the buyer to learn gain staging first.
Strengths
- Two remote-controlled mic preamps with 69 dB of gain, so quiet mics get enough level without noise creeping in.
- Clip Safe watches the input and adjusts gain if a loud moment threatens to distort.
- Auto Gain and Air mode make good levels easy for people who do not want to babysit meters.
Limitations
- Two inputs is a hard ceiling, so a drum kit or a live band needs a bigger box.
- No MIDI in or out for keyboard controllers.
- A single headphone output means sharing when two people monitor.
What owners report
Commonly praised
- Auto Gain plus Clip Safe together make ruined takes rare for beginners
- two mic preamps handle voice and guitar at the same time with room to spare
- clean sound that stays out of the way of the performance
Common complaints
- Two inputs is a hard ceiling for drums or a live band
- a single headphone socket means two listeners must share
- no MIDI connection for controllers
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 combo mic/line/Hi-Z inputs (2-in / 2-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Dynamic range | 120 dB |
| Mic gain range | 69 dB |
| Level help | Auto Gain, Clip Safe, and Air mode |
| Connection | USB-C, bus powered |
Best for: Home studios recording a voice and a guitar, two voices, or a stereo pair.
Skip if: You need four inputs, MIDI, or a second headphone output.
Best for beginners
Focusrite Scarlett Solo 4th Gen, 2-Input USB Audio Interface (Interface Only)
One mic and one guitar, with the level-setting done for you.
The Solo is the cheapest way into the Scarlett range, and it keeps the feature that matters most to a first-timer: Auto Gain. One mic input plus one instrument input covers the solo singer-songwriter completely, and nothing about the box is intimidating.
Strengths
- Auto Gain sets the recording level for you, which removes the most common beginner mistake.
- One proper mic preamp plus a separate Hi-Z instrument input covers a voice and a guitar without swapping cables.
- Air mode adds a brighter, more open character to vocals and acoustic instruments when you want it.
Limitations
- Only one microphone input, so two-person recording is not possible.
- No Clip Safe protection, which the larger Scarlett models include.
- No MIDI connection for a keyboard controller.
What owners report
Commonly praised
- Auto Gain takes the guesswork out of setting a first recording level
- one mic input plus a separate guitar input covers a solo session without cable swapping
- Air mode brightens vocals and acoustic guitar in a way owners notice at once
Common complaints
- A second microphone cannot be added when a duo session comes up
- no Clip Safe means a sudden loud note can still distort a take
- no MIDI socket for a keyboard controller
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 1 XLR mic preamp + 1 Hi-Z instrument input (2 inputs total) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Dynamic range | 120 dB |
| Mic gain range | 69 dB |
| Connection | USB-C, bus powered |
| Level help | Auto Gain and Air mode |
Best for: Solo singers, guitarists, and podcasters recording one voice or one instrument at a time.
Skip if: You ever need two microphones at once, or you record a duo.
Best metering
MOTU M2 USB-C Audio Interface, 2-Input (Interface Only)
The metering pick: a colour LCD that shows exactly what each input is doing.
The M2 wins on information. Its colour LCD shows every input and output level at a glance, which is exactly what a recordist who sets levels by eye needs. The ESS converters and very low latency are the rest of the argument.
Strengths
- The full-colour LCD shows level meters for every input and output, so clipping is visible before it is audible.
- ESS Sabre32 converters give the outputs a measured 120 dB of dynamic range.
- Latency is very low with the MOTU drivers, which matters when monitoring through the computer.
Limitations
- No Auto Gain or clip protection, so levels need watching.
- The software bundle is generous but takes time to install and sort through.
- Two inputs only, with no ADAT or other expansion.
What owners report
Commonly praised
- The colour LCD shows every input and output level at a glance, so clipping is seen before it is heard
- converters give playback a clean and detailed sound
- latency stays low enough to monitor through the computer comfortably
Common complaints
- No Auto Gain, so beginners must learn gain staging on their own
- the software bundle is generous but takes a while to install and sort through
- two inputs with no way to expand later
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 mic/line/Hi-Z combo inputs (2-in / 2-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Converters | ESS Sabre32 Ultra DAC, 120 dB dynamic range on outputs |
| Metering | Full-colour LCD for all inputs and outputs |
| MIDI | MIDI in and out |
| Connection | USB-C, bus powered |
Best for: Recordists who set levels by eye as well as by ear, and who want very low latency.
Skip if: You want Auto Gain, or you need more than two inputs.
Best for vocals
Universal Audio Volt 276 USB Audio Interface, 2-Input with 76 Compressor (Interface Only)
The Volt 2 plus a real hardware compressor for vocals on the way in.
The 276 is the only interface here with a hardware compressor on the way in. For a vocalist, that single feature is worth the premium: loud peaks get tamed before they reach the computer, and the Vintage mode gives the take a finished warmth that needs no plugin.
Strengths
- The built-in 76 compressor tames loud vocal peaks before they reach the computer, which is hard to fix afterwards.
- Vintage preamp mode plus the compressor gives vocals a finished character straight from the input.
- The wooden side panels and larger knobs make it the most pleasant Volt to use by hand.
Limitations
- The compressor is a single fixed character, not a flexible studio compressor.
- Two inputs only, so it cannot grow into a band setup.
- Costs more than the Volt 2 for one extra feature, so it only pays off if you record vocals often.
What owners report
Commonly praised
- The built-in 76 compressor keeps vocal levels even before they reach the computer
- Vintage mode plus the compressor gives takes a finished feel straight from the input
- large knobs and wooden side panels make it pleasant to adjust by hand
Common complaints
- The compressor has one fixed character and cannot be reshaped like a plugin
- two inputs only, with no room to grow into band recording
- the premium over the Volt 2 only pays off for regular vocal work
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 XLR combo mic/line/instrument inputs (2-in / 2-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Compressor | Built-in 76 compressor, switchable per channel |
| Preamp character | Vintage mode, modelled on the 610 tube preamp |
| MIDI | MIDI in and out |
| Connection | USB-C, bus powered |
Best for: Vocalists and streamers who want controlled, finished-sounding takes without touching a plugin.
Skip if: You record mostly instruments, or you prefer to compress later in the mix.
Best 4-input value
MOTU M4 USB-C Audio Interface, 4-Input (Interface Only)
The M2 grown up: four inputs, the same screen, the same low latency.
The M4 gives four inputs, four outputs, and the same LCD metering as the M2 for little more money than most two-input rivals. A mic, a guitar, and a stereo synth can stay connected at once, which is the point where a home studio stops swapping cables.
Strengths
- Four inputs for the price of many two-input rivals, with two mic preamps plus two line inputs.
- The same full-colour LCD metering as the M2, now covering four inputs and four outputs.
- Four balanced outputs make it easy to run a second pair of monitors or outboard gear.
Limitations
- Only two of the four inputs take a microphone; the other two are line level only.
- No Auto Gain or clip protection.
- The extra outputs are wasted if you only own one pair of monitors.
What owners report
Commonly praised
- Four inputs and four outputs for little more than a good two-input box
- the same clear LCD metering as the M2, now covering four channels
- extra outputs make a second pair of monitors easy to run
Common complaints
- Only two inputs take a microphone, the other two are line level only
- no Auto Gain or clip protection
- the extra outputs sit unused with a single pair of monitors
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 mic/line/Hi-Z combo + 2 line inputs (4-in / 4-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Converters | ESS Sabre32 Ultra DAC, 120 dB dynamic range on outputs |
| Metering | Full-colour LCD for all inputs and outputs |
| MIDI | MIDI in and out |
| Connection | USB-C, bus powered |
Best for: Small studios recording a mic, a guitar, and a stereo keyboard or synth at once.
Skip if: You only record one or two sources, or you want Auto Gain.
Best 4-input Scarlett
Focusrite Scarlett 4i4 4th Gen, 4-Input USB Audio Interface (Interface Only)
Four inputs and MIDI, for multi-instrumentalists and small collaborations.
The 4i4 is the Scarlett for people who have outgrown two inputs but still want Auto Gain and Clip Safe. MIDI in and out is included, and the four inputs cover a duo with keys or a multi-instrumentalist without a bigger, rack-sized box.
Strengths
- Four inputs with two mic preamps, so a mic, a guitar, and a keyboard can stay plugged in at once.
- MIDI in and out connects a keyboard controller without a separate adapter.
- Auto Gain and Clip Safe carry over from the 2i2, so the extra inputs do not add extra fiddling.
Limitations
- Needs the included 5V power supply as well as USB, so it is less grab-and-go than the bus-powered models.
- Only two of the four inputs have mic preamps; the other two are line or instrument level.
- Costs noticeably more than the 2i2 for inputs you may not use every session.
What owners report
Commonly praised
- Four inputs keep a mic, a guitar, and keys plugged in at once
- MIDI in and out removes the need for a separate adapter
- Auto Gain and Clip Safe carry over from the smaller Scarlett models
Common complaints
- The included power supply adds a brick to the desk setup
- only two inputs take a microphone, the other two are line level
- the price step over the 2i2 is hard to justify for two-input sessions
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 mic preamps + 2 line/instrument inputs (4-in / 4-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Mic gain range | 69 dB |
| MIDI | MIDI in and out |
| Level help | Auto Gain, Clip Safe, and Air mode |
| Power | USB-C plus included 5V power supply |
Best for: Musicians who record several instruments, a duo with keys, or a small live setup.
Skip if: You only ever record one or two sources, or your budget stops at two inputs.
Best preamp quality
Audient iD4 MkII USB-C Audio Interface, 2-Input (Interface Only)
One console-grade preamp and a big volume knob, in the smallest box here.
The iD4 MkII has one mic preamp, and it is a very good one: the console-grade Class A circuit from Audient's large desks, with a JFET instrument input that flatters guitar and bass. Buy it when one great input beats two ordinary ones.
Strengths
- The single Class A console mic preamp is the same circuit family Audient uses in its large consoles.
- The JFET instrument input is voiced for guitar and bass, so direct guitar tracks sound less flat.
- Two headphone outputs, in 6.35 mm and 3.5 mm, mean no adapter hunting.
Limitations
- Only one microphone input, so a duo or a stereo mic pair is out.
- Maximum sample rate is 96 kHz, while most rivals here reach 192 kHz.
- One shared volume knob controls both headphones and speakers, which takes getting used to.
What owners report
Commonly praised
- The console-grade mic preamp gives a single voice a clean and full sound
- the JFET guitar input makes direct guitar tracks sound warmer than a plain DI
- two headphone sockets in different sizes mean no adapter hunting
Common complaints
- Only one microphone input, so a duo or stereo pair is out
- the 96 kHz ceiling is lower than most rivals here
- one shared knob for headphones and speakers takes getting used to
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 1 combo mic/line input + 1 JFET instrument input (2-in / 2-out) |
|---|---|
| Conversion | 24-bit / 96 kHz |
| Mic preamp | Audient Console Class A preamp, 58 dB gain |
| Headphones | Dual outputs, 6.35 mm and 3.5 mm |
| Control | ScrollControl knob doubles as a DAW control |
| Connection | USB-C, bus powered |
Best for: Guitarists and vocalists who record one source at a time and care most about the mic preamp.
Skip if: You need two microphones at once, or you record at sample rates above 96 kHz.
Best for streaming
Steinberg UR22C USB 3.0 Audio Interface, 2-Input (Interface Only)
Onboard effects and loopback, for streamers as well as recordists.
The UR22C is the streaming pick because of two features no rival here matches together: onboard DSP effects for latency-free monitoring, and a loopback function that mixes mic and computer audio into one stream feed. The 32-bit conversion is a bonus, not the reason to buy it.
Strengths
- Onboard DSP runs reverb and channel-strip effects while you monitor, with no delay and no computer load.
- The loopback function mixes your mic with computer audio for streaming without extra routing software.
- 32-bit conversion gives the most headroom of any interface in this guide.
Limitations
- The DSP effects are basic next to full plugins, and only affect monitoring unless you print them.
- Cubase AI is included, but the full Cubase experience costs extra.
- Two inputs only, and the metal case is heavier than the plastic rivals.
What owners report
Commonly praised
- Onboard DSP effects let you hear reverb while tracking with no delay
- loopback mixes mic and computer audio for streaming without extra software
- 32-bit conversion gives generous headroom against clipping
Common complaints
- The DSP effects are basic next to full plugins and only colour monitoring unless printed
- Cubase AI is included but the full Cubase version costs extra
- the metal case is heavier than the plastic rivals for travel
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 D-PRE mic/line inputs (2-in / 2-out) |
|---|---|
| Conversion | 32-bit / 192 kHz |
| Mic preamps | 2 Class A D-PRE preamps |
| DSP | Onboard SSP3 DSP with dspMixFx effects |
| Streaming | Loopback function mixes mic with computer audio |
| MIDI | MIDI in and out |
| Connection | USB-C, bus powered |
Best for: Streamers, podcasters, and Cubase users who want effects while monitoring and an easy live mix.
Skip if: You only record music and never stream, or you want Auto Gain.
Best budget
PreSonus Studio 24c USB-C Audio Interface, 2-Input (Interface Only)
The budget two-input pick, with a full DAW in the box.
The Studio 24c is the cheapest complete start in this guide: a solid two-input interface plus the full Studio One Artist DAW in the box. It asks the buyer to set levels by hand, but it charges the least for the lesson.
Strengths
- Studio One Artist recording software is included, so the interface arrives with a real DAW rather than a trial.
- Two XMAX-L mic preamps with a clear level meter strip on the front panel.
- MIDI in and out is included at a price where many rivals leave it out.
Limitations
- No Auto Gain or clip protection, so beginners must learn to set levels by hand.
- The bundled software has a learning curve of its own.
- Two inputs only, with no expansion path.
What owners report
Commonly praised
- Studio One Artist in the box means a complete recording setup for the least money
- front-panel meters make hand-setting levels straightforward
- MIDI in and out at a price where rivals often leave it out
Common complaints
- No Auto Gain, so first-timers must learn levels by trial and error
- the bundled DAW has a learning curve of its own
- two inputs only, with no expansion path
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 mic/instrument combo inputs (2-in / 2-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Mic preamps | 2 XMAX-L preamps |
| MIDI | MIDI in and out |
| Software | Studio One Artist included |
| Connection | USB-C, bus powered |
Best for: First-time recordists who want a complete setup, interface plus recording software, for the least money.
Skip if: You already own a DAW you like, or you need four inputs.
Best vintage character
Universal Audio Volt 2 USB Audio Interface, 2-Input (Interface Only)
A vintage-flavoured two-input box with a simple, honest layout.
The Volt 2 gives the same Vintage preamp flavour as the 276 without the compressor, at a lower price and in a plainer box. For a singer-songwriter who records instruments as often as vocals, it is the better Volt buy.
Strengths
- Vintage mode gives each preamp a warmer, tube-flavoured character at the press of a button.
- Two XLR combo inputs with individual gain knobs make a voice-and-guitar session quick to set up.
- MIDI in and out is included, which the Scarlett 2i2 does not offer.
Limitations
- No Auto Gain or clip protection, so setting levels is on you.
- Two inputs only, with no path to expand later.
- The bundled software needs registering and downloading before first use.
What owners report
Commonly praised
- Vintage mode gives voice and guitar a warmer character without any plugin
- two combo inputs with separate gain knobs set up fast
- MIDI in and out is included where some rivals leave it out
Common complaints
- No Auto Gain means levels must be set by hand and watched
- no clip protection for sudden loud peaks
- the bundled software needs registering and downloading before first use
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Inputs | 2 XLR combo mic/line/instrument inputs (2-in / 2-out) |
|---|---|
| Conversion | 24-bit / 192 kHz |
| Preamp character | Vintage mode, modelled on the 610 tube preamp |
| MIDI | MIDI in and out |
| Connection | USB-C, bus powered |
| Monitoring | Direct monitoring switch |
Best for: Singer-songwriters who want a warmer preamp sound without plugins or extra gear.
Skip if: You need four inputs, or you prefer a completely clean and neutral preamp.
How we chose
We judged interfaces on input count matched to real sessions, because an interface with too few inputs forces re-recording and one with too many wastes money. Preamp quality and gain range came next: a quiet preamp with enough gain for a dynamic mic matters more than a headline sample rate. Monitoring mattered too, from the M2's LCD meters to direct monitoring switches and the UR22C's DSP effects. Finally, software and drivers counted: a bundled DAW, a working driver, and level-setting help like Auto Gain all change the first month of ownership more than a spec sheet does.
Questions, answered
How many inputs do I need?
Count the sources you record at the same time. One voice or one guitar: one mic input is enough, and the Solo or iD4 MkII will do. A voice and a guitar together, or two voices: two mic inputs, which means the 2i2, Volt 2, M2, or UR22C. A mic, a guitar, and a keyboard at once: four inputs, which means the 4i4 or the M4.
What is the difference between a mic input and a line input?
A mic input has a preamp that boosts a very quiet microphone signal, and usually offers 48V phantom power for condenser mics. A line input expects a much louder signal from a keyboard, a synth, or a mixer, and has no preamp. The combo sockets on most interfaces here accept both, plus a Hi-Z instrument input for a guitar plugged straight in.
Do I need 192 kHz sample rates?
Almost certainly not. Recording at 44.1 or 48 kHz is the standard for finished music, and every interface here handles that easily. Higher rates use more disk space and computer power for a difference most listeners never hear. The iD4 MkII tops out at 96 kHz and loses nothing in practice because of it.
Does an interface come with a microphone?
Not the ones in this guide: they are all interface-only units, so you buy the microphone separately. The exception is software, not hardware: the PreSonus Studio 24c includes the Studio One Artist DAW, and most of the others include a DAW or plugins as a download. Check the listing before you buy, since bundle versions with a mic and headphones exist under different ASINs.