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Record Like a Pro, Anywhere.

Volt 4 is the perfect USB audio interface for creative collaborators who want to easily record audio projects with professional studio sound. Plug right into your Mac, PC, iPad, or iPhone and Volt just shows up, ready to capture your inspiration with professional sound, courtesy of Universal Audio.

Create legendary-sounding music productions, livestreams, and podcasts on Mac, PC, iPad, and iPhone

Get a 30-day free trial to UAD Spark and create with the best vintage gear and instruments ever made

Record your voice or guitar with album‑ready sound using Vintage Mic Preamp mode

Build your desktop production studio around a stylish interface, built to withstand years of home and mobile recording

Collaborate with Best-in-Class Audio Quality

Collaborate with Best-in-Class Audio Quality

From the team that brought you the game‑changing Apollo interface, Volt 4 delivers superior studio sound quality with more character and tone than any USB interface in its class.

Capture Legendary Tones with Vintage Mic Preamp Mode

Capture Legendary Tones with Vintage Mic Preamp Mode

Few sounds can compare to a vintage Universal Audio 610 tube preamp, the same preamp used to record everyone from Ray Charles to Van Halen. Volt 4 gives you the rich, full sound of this iconic UA preamp, thanks to its built‑in tube emulation circuitry, a UA exclusive.

Easy In, Easy Out

Easy In, Easy Out

Volt 4 gives you simple audio connections to quickly get started. Just plug your mics and guitars into the front panel preamps, and use the line inputs for synths and drum machines. Then connect your speakers or headphones to monitor your audio with no latency. With Volt, you’ll be creating like a pro, fast.

iPad & iPhone Ready

iPad & iPhone Ready

Traveling light? Plug Volt 4 into your iPad or iPhone, and you can easily create beats and samples, record your band’s rehearsals, and edit songs anywhere.*

*Requires external Volt power supply and an Apple Lightning to USB Camera Adapter (except iPads with USB‑C).

Stay Inspired with a Curated Suite of Audio Software

Some audio interfaces give you a smattering of random audio apps. Not Volt. Instead, we put together a bundle of serious music production tools, virtual instruments, and plug‑ins from the industry's best.

See Included Software for Mac & PC ›

Inspiration Comes Quick. Watch the Videos.

      Included Software for Mac & PC

      Offering a powerful DAW, vintage guitar and bass amps, industry-leading virtual instruments, and much more, Volt gives you everything you need to start producing music, podcasts, and livestreams, right out of the box.

      • Marshall Plexi Classic Amplifier
      • Ableton Live Lite
      • Melodyne Essential
      • Ampeg® SVT-VR Classic Bass Amp
      • LX480 Essentials
      • Virtual Drummer DEEP
      • Virtual Bassist DANDY
      • LABS
      Marshall Plexi Classic Amp Bundle by Softube

      Marshall Plexi Classic Amp Bundle by Softube

      Create with an expertly modeled version of the iconic British amp that invented the sound of rock. Plus, shape your tones further with the included Softube Time & Tone Bundle, featuring additional reverb, delay, compression, and saturation plug-ins.

      Ableton Live Lite

      Ableton Live Lite

      Packed with all the effects, instruments, and features you need to make professional music productions, Live is fast, fluid, and flexible software for music creation and performance.

      Melodyne Essential by Celemony

      Melodyne Essential by Celemony

      Easily correct the pitch of recordings and samples with quick, intelligent note-based processing, and tune vocal and instrument tracks for more professional-sounding recordings and mixes.

      Ampeg<sup>®</sup> SVT-VR Classic Bass Bundle by Plugin Alliance

      Ampeg® SVT-VR Classic Bass Bundle by Plugin Alliance

      Get all the massive, earth-shaking tube tone of Ampeg’s iconic bass amp. Plus, use the bx_tuner for quick tuning and the powerful bx_masterdesk plug‑in to add the final touch to any source.

      LX480 Essentials by Relab Development

      LX480 Essentials by Relab Development

      Add lush dimension and ambience with Relab's expert model of this classic '80s digital reverb unit. You can also add complex delay and modulation textures for space and movement to your tracks.

      Virtual Drummer DEEP by UJAM

      Virtual Drummer DEEP by UJAM

      From classic soul and funk rhythms of the ‘60s and ‘70s to contemporary pop and rock styles, DEEP sports UJAM’s dynamic "round-robin" algorithm, giving you drum tracks that sound like the real thing.

      Virtual Bassist DANDY by UJAM

      Virtual Bassist DANDY by UJAM

      Get classic flatwound bass sounds for soul, pop, blues, and rock tracks with UJAM's custom-made DSP algorithms. DANDY automatically follows the key and chord you play, intelligently selecting musical bass articulations to make your tracks shine.

      LABS by Spitfire Audio

      LABS by Spitfire Audio

      Delivering on-the-spot inspiration for music productions, soundtracks, and podcasts, LABS is a curated virtual instrument library that features strings, pianos, percussion, synths, guitars, and more.

      Key Features

      Desktop 4 in/4-out USB audio interface with class-leading 24-bit/192 kHz audio conversion for Mac, PC, iPad, and iPhone

      Vintage Mic Preamp mode for recording your voice or guitar with the rich, full sound of an iconic UA tube preamp

      Extended 30-day free trial to UAD Spark offers an ever-expanding library of world-class plug-ins and instruments for a low monthly price

      Studio-quality headphone amplifier for loud, clear monitoring

      USB bus powered to reduce cable clutter

      48V phantom power for condenser microphones

      Direct Monitoring for latency-free recording

      Stylish, rugged construction built to withstand years of use

      1-in/1-out MIDI connections

      USB-C to USB-A cable included

      To see full system requirements, click here.

      Customer Reviews

      Volt 4

      Overall Rating


      P. Bohak

      July 10, 2024

      Love this interface

      Besides looking cool, it can handle up to 6 outputs. If you're needing 5.1 surround sound capability this will provide. I also dig the vintage preamp options for recording.

      A. Cox

      June 27, 2024

      Great for recording or live via DI

      The interface pairs well with the UA-4-710d for recording drums or a range of studio instruments. I also use the Volt-4 to connect my laptop to a DI for live performances. Overall, very versatile high quality piece of audio equipment. No issues w/ drivers on Mac and the free UA Connect plugins added value to my daw library.

      Note: I did change the cable out that came w/ it so I have a usb-c to usb-c setup for my mac, as the unit came w/ a usb-c to usb-a (og-usb) one. It was like $10 to get a more modern cable so nbd!

      M. Cristea

      May 10, 2024

      5 Stars

      The best Audio Interface that I used. Great sound, easy to use, a lot of mixing possibilities.
      Congratulation UA!

      T. Avander

      January 27, 2024

      Outstanding product and company

      Just getting started with this journey and so far I’m just so excited and amazed with UA and this sound card. It has so good sound, the value with the plugins campaign is too good. There are such growth capacity and I have a feeling I will stay with universal audio for a long time ahead in my recording journey. Excited and very happy with this product.

      N. Thornton

      January 20, 2024

      Volt 4

      Thanks to Kyle B. in Customer service I was able to redeem my included software which I am ecstatic about…
      Great work!

      慶. 玄巣

      November 15, 2023

      good sound!


      A. Whalan

      November 10, 2023

      Solid product with a few misteps that let it down

      The device is built very sturdy and looks amazing! Audio quality seems great without random pops/ hisses on reboots.

      The supplied USB is only 1m making it a bit short for my setup where my interface is a bit away from my desktop computer. It also seems very basic/ cheap quality when contrasted with such a tidy interface.

      The biggest frustration I had is that you MUST register for an account, then install UA Connect which installs some DRM crap, and THEN you can install the drivers. If you want the "free" plugins, you've got to install even more DRM junk to get them.

      The driver does not let you split your inputs into 4 separate mono devices. It'll only treat them as 2x stereo inputs which makes it annoying if you want to use a mic for meetings and the software treats it as a stereo input causing other people to only hear your voice out of one channel. This won't be a drama in a DAW obviously, but just in general day to day usage which shows a disappointing lack of attention to detail.

      The device works perfectly on Linux with a few tweaks to PulseAudio config to split up the inputs into 4 devices with the "module-remap-source" module.

      If they included a longer, better quality cable and just allowed you to download drivers directly it'd be a 5/5 but forcing me to register an account just to get drivers is uncool. Overall a great product let down by poor execution.

      C. Jones

      September 4, 2023

      Sound Upgrade

      Great upgrade for my home studio.
      Instrument input makes a huge difference when recording guitar.

      U. Sabiniewicz

      August 16, 2023


      Had nearly every brand past 20 years in this price range.
      Coming from an SSL2, now my headphone (AKG 701) sounds like one class higher.
      Channel 3+4 could have a bit more input gain. My Minilogue in unisono just makes it to -10db.
      Soundwise 3x better than a focusrite 4i4.

      B. Mosteanu

      July 25, 2023

      Solid product

      Up until now I was using a focusrite solo, but I needed more inputs for hardware synths.
      Decided to switch to the Volt 4 and it works really well.

      Overall I'm pretty happy with it, the only weird issue is that sometimes (rarely) the audio will skip a bit, but it does that only on mac os (m1) so I guess there's something that needs fixing.

      I'm only rating this 4 stars because the process of setting the software up and getting the free bundled stuff is really clunky on mac, otherwise great product.

      S. Girola

      July 25, 2023


      Great build quality, works perfectly with my Mac M1 and Bitwig, great software bundle, great preamps.

      M. Georgiades

      May 26, 2023

      UA Connect won't load...can't download the driver

      The hardware is great. Sounds good, I like the monitor is separate from inputs 1 and 2. However UA Connect won't load past login preventing me from installing the driver. Without the driver it only works as a generic USB audio device turning inputs 1 and 2 into a stereo mic and preventing it from working with DAWS. If I wanted a fancy headphone amp, I'd have bought a headphone amplifier.
      Please the make the Volt drivers and control software directly available until you fix UA Connenct.

      R. Abercrombie

      May 25, 2023

      Good build quality best budget interface

      This unit is built like a tank. I bought it for the price, brand name, design and multiple I/O options. It is precisely the same size as a scarlet give or take. BUT SERIOUSLY: the pre amps & output are pretty quiet, perfect for dynamic mics setups. Condenser mics are noisier but we have plugins for that. I LOVE THAT I can hook it up to my iPad or iPhone. It registers as volt 4. That’s pretty fly. HOWEVER, since this unit is geared towards creators, please give us a mobile app. Something that we can use to work on projects while on the go.

      D. Colo'

      March 16, 2023

      Great preamps quality, great build quality, great software bundle

      I chose this interface for the quality of its preamps (with and without vintage mode), for the monitoring capability using four physical buttons and for the software bundle. At this price it is impossible to have more.


      January 19, 2023

      Volt 4

      I recently bought this interface and it seems really good in quality and performance.
      It seems it has less gain as my previous Apogee, but anyway it's very quite and easy to operate with. Good converters and preamp and the Headphones is good and loud enough. Until now ev'rything's ok.

      P. Fenger

      December 23, 2022

      Top portable interface in the studio

      I am really pleased with this audio interface. I've been using studio interfaces as well as some budget ones (under 400EUR) and this one is the best non-studio, portable interface I had. Sound quality compares to more expensive gear and is significantly better than it's market competitors. Build quality is excellent as well. The only drawback is the neccessity to register via UAD connect to get the drivers (on Windows this device is problematic without installing its ASIO driver so I recommend getting it on the spot, and that is possible only via UAD app and account registration).

      F. Fonseca-Espinoza

      December 22, 2022

      Amazing Built quality and top features

      The buit quality of this interfase it top notch, after a couples of weeks of testing I might say that the sound quality is amazing and the bundled software is pretty fun

      C. Nikolaou

      November 24, 2022

      Very nice piece of gear

      It is quality gear at a very affordable price. The inputs are excellent with very good preamps. All buttons, potentiometers and connectors are good quality. The only thing I am missing is better output routing. I would like to mute the monitor without muting the headphones. Also the output level is kinda low. With the pot at 3/4 it should be louder.

      J. Vierra

      November 9, 2022

      VOLT 4 is shockingly good!

      I bought this to use as an inexpensive aggregate device. I am surprised at the clarity of the pre's and of the line inputs. It functions well in my system alongside my Apollo Twin X.

      J. Tsang

      November 9, 2022

      Small and Portable Audio Interface with user friendly DAW

      This audio interface record beautiful sound. It comes with Live 11 Element which is very user friendly. The cons is that it has only two mic/line inputs; the 3/4 line inputs have no volume control.