If you need more inputs today and room to expand later, an audio interface with ADAT expansion is one of the smartest upgrades you can make.
Below, we’ve rounded up the best options for everything from compact solo setups to full-band recording rigs, with picks that balance sound quality, connectivity, and long-term flexibility.
Best 10 Audio Interface with Adat Expansion Picks for 2026
Flagship expansion-ready interface
Focusrite Scarlett 18i20 4th Gen USB-C Audio Interface
- 18-in/20-out design with eight mic preamps
- Dual ADAT, S/PDIF, MIDI I/O, and Word Clock
- Auto Gain, Clip Safe, and 24-bit/192kHz conversion
Best For: larger studios that need deep digital expansion
Eight-channel ADAT preamp expander
Behringer ADA8200 Microphone Preamp Black
- Adds eight Midas preamps over ADAT
- Built for expanding an existing interface
- Up to 48kHz recording support
Best For: expanding an interface with more mic inputs
Compact expansion-capable interface
Focusrite Scarlett 16i16 4th Gen USB-C Audio Interface
- 16-in/16-out USB-C interface with ADAT
- Two mic preamps plus Hi-Z and line inputs
- Auto Gain, Clip Safe, and 24-bit/192kHz conversion
Best For: project studios that want a compact ADAT-ready interface
Budget two-channel starter
PreSonus AudioBox 96 25th Anniversary USB Audio Interface
- Two-channel, bus-powered USB interface
- Up to 24-bit/96kHz recording
- Includes Studio One Artist and Ableton Live Lite
Best For: beginners who want a simple portable interface
Premium Bus-Powered Upgrade
Focusrite Clarett+ 2Pre USB-C Audio Interface
- Two Clarett+ preamps with low-noise performance
- ADAT optical input adds eight digital channels
- Bus-powered USB-C design for portable setups
Best For: Home and project studios needing clean inputs plus future expansion
Simple Starter Pick
M-AUDIO M-Track Duo USB Audio Interface
- Two combo inputs for vocals, instruments, and line sources
- USB/direct monitoring helps avoid latency
- Includes MPC Beats software for quick setup
Best For: Beginners building a basic recording or podcasting setup
Elite Expansion Hub
Neumann MT 48 USB-C Audio Interface
- 136 dB dynamic range for high-end conversion
- ADAT/S/PDIF connectivity for digital expansion
- DSP, touchscreen, and four mixers for advanced workflows
Best For: Professional studios needing premium conversion and routing
Portable Starter Interface
- 24-bit/192kHz conversion with 120dB dynamic range
- 1 mic preamp and 1 Hi-Z input for simple tracking
- Air mode and included recording software bundle
Best For: Solo artists and beginners recording vocals or guitar
Expanded Studio Hub
- 18-in/16-out interface with ADAT, S/PDIF, and MIDI
- Four mic preamps plus two Hi-Z and eight line inputs
- Auto Gain, Clip Safe, and 122dB dynamic range
Best For: Producers who want an interface with ADAT expansion
Budget Solo Recorder
- 24-bit/192kHz conversion in a simple 2-channel design
- Air mode, gain halos, and low-noise balanced outputs
- Includes beginner-friendly recording software
Best For: Entry-level users needing a dependable solo interface
Flagship expansion-ready interface – Focusrite Scarlett 18i20 4th Gen USB-C Audio Interface
If you want an audio interface with adat expansion that can anchor a larger project studio, the Scarlett 18i20 4th Gen is built for the job. It combines 18 inputs and 20 outputs with dual ADAT, S/PDIF, MIDI I/O, and Word Clock, so it fits easily into a growing multi-device setup while still offering modern USB-C convenience.
Best For: Producers and engineers who need a full-featured interface with lots of digital expansion options.
Pros:
- 18 inputs and 20 outputs with eight mic preamps for larger tracking sessions
- Dual ADAT plus S/PDIF, MIDI I/O, and Word Clock for serious system expansion
- 4th Gen preamps deliver up to 69dB gain and 24-bit/192kHz conversion
- Auto Gain and Clip Safe help simplify level setting and prevent overloads
Cons:
- More interface than casual home recordists are likely to need
- Designed for a bigger studio workflow rather than a simple portable rig
The 18i20 stands out when expandability matters as much as sound quality. If you need an interface that can grow with external preamps and digital hardware, this one offers a practical and well-equipped foundation.
Eight-channel ADAT preamp expander – Behringer ADA8200 Microphone Preamp Black
The ADA8200 is a straightforward audio interface with adat expansion use case in mind: it adds eight Midas preamps over ADAT at up to 48kHz. If your main interface already has ADAT input and you need more mic channels, this unit is a simple way to expand tracking capacity without adding much complexity.
Best For: Adding eight extra microphone inputs to an ADAT-equipped interface.
Pros:
- Eight-channel expansion via ADAT Light Pipe
- Eight Midas preamps for extra mic inputs
- Simple wired connectivity for a rack or studio setup
- Compact enough to slot into an existing recording rig
Cons:
- Limited to 48kHz maximum sample rate
- Not a standalone all-in-one interface for a full recording setup
This is a utility piece rather than a centerpiece interface. It makes the most sense when you already have the main converters and just need more quality analog inputs through ADAT.
Compact expansion-capable interface – Focusrite Scarlett 16i16 4th Gen USB-C Audio Interface
The Scarlett 16i16 4th Gen is a strong pick if you want an audio interface with adat expansion in a smaller desktop footprint. It includes ADAT, S/PDIF, and MIDI I/O alongside two mic preamps, two Hi-Z inputs, and six line inputs, giving you a flexible center for a serious project studio.
Best For: Project studios that need a compact interface with room to expand digitally.
Pros:
- 16 inputs and 16 outputs in a compact USB-C interface
- ADAT, S/PDIF, and MIDI I/O for digital expansion and integration
- 4th Gen preamps offer up to 69dB gain and 24-bit/192kHz conversion
- Auto Gain and Clip Safe support easier recording workflows
Cons:
- Only two mic preamps onboard, so larger sessions will rely on expansion
- Less I/O than the larger 18i20 model
For buyers who want expandability without jumping to a full rack-sized interface, the 16i16 is a smart middle ground. It brings modern conversion and useful workflow tools while still leaving room to scale up through ADAT.
Budget two-channel starter – PreSonus AudioBox 96 25th Anniversary USB Audio Interface
The AudioBox 96 is a practical entry-level interface, but it is not an audio interface with adat expansion. Instead, it focuses on portable 2-channel recording, USB bus power, and simple monitoring for small setups. That makes it useful for basic home recording, though it is not the right choice if you specifically need ADAT expandability.
Best For: Beginners and mobile recordists who want a simple, bus-powered 2-channel interface.
Pros:
- Two Class-A mic preamps and two instrument inputs
- USB bus-powered design keeps the setup mobile
- Up to 24-bit/96kHz recording and playback
- Includes Studio One Artist, Ableton Live Lite, and Studio Magic Plug-In Suite
Cons:
- No ADAT support for expansion
- Only two channels, so it is not built for larger tracking sessions
If your priority is expandability, this model falls outside that category. But as a straightforward starter interface, it offers enough features to get recording quickly without unnecessary complexity.
Premium Bus-Powered Upgrade – Focusrite Clarett+ 2Pre USB-C Audio Interface
If you want an audio interface with ADAT expansion that can grow with your studio, the Clarett+ 2Pre is built for exactly that. It combines two Clarett+ preamps, improved converters, and a USB-C bus-powered design, so it works well as a compact front end now and a digital expansion hub later.
Best For: Home studios and project studios that want clean mic preamps now plus ADAT expandability for future channel growth.
Pros:
- Two Clarett+ preamps with low distortion, low noise, and lots of headroom.
- ADAT optical input adds eight channels of digital expandability with compatible gear.
- Improved A-D and D-A converters support accurate recording and playback.
- Bus-powered USB-C operation makes it easy to use with a laptop setup.
Cons:
- Only two analog preamps, so larger sessions will rely on expansion.
- ADAT expansion requires compatible outboard equipment to add channels.
Overall, this is a practical pick for users who want strong conversion and preamps today with a clear path to expand through ADAT when their tracking needs grow.
Simple Starter Pick – M-AUDIO M-Track Duo USB Audio Interface
This compact model is a straightforward audio interface, but it is not an audio interface with ADAT expansion. Instead, it focuses on simple two-channel recording, easy monitoring, and a small footprint for podcasting, streaming, and basic music work.
Best For: Beginners who need a budget-friendly two-input interface for vocals, instruments, streaming, or podcasting.
Pros:
- Two combo XLR/line/instrument inputs handle a range of recording sources.
- USB/direct monitoring switch supports zero-latency monitoring.
- 48kHz resolution is suitable for everyday recording tasks.
- Includes MPC Beats software for getting started quickly.
Cons:
- No ADAT expansion, so channel count cannot be expanded digitally.
- Maximum sample rate is limited to 48kHz.
As an entry-level interface, the M-Track Duo is best when simplicity matters more than expandability. If your priority is future ADAT growth, this is not the right fit, but it is a solid basic option for small setups.
Elite Expansion Hub – Neumann MT 48 USB-C Audio Interface
If you need an audio interface with ADAT expansion at a premium level, the Neumann MT 48 is designed for high-end recording and monitoring workflows. It pairs class-leading conversion with multiple mixers, DSP processing, and ADAT/S/PDIF connectivity, making it a strong centerpiece for an expandable studio.
Best For: Professional studios and advanced users who want top-tier conversion, monitoring, and digital expansion.
Pros:
- Class-leading AD-converter resolution with 136 dB dynamic range.
- ADAT and S/PDIF expansion connectivity supports more flexible system growth.
- Two premium mic/line preamps plus two line/instrument inputs provide solid onboard I/O.
- Four mixers, DSP processing, and touchscreen control add advanced routing and workflow options.
Cons:
- Primarily listed for Windows operating systems in the supplied details.
- Its premium feature set may be more than casual users need.
The MT 48 is the most advanced option here for users who want serious monitoring and conversion quality alongside digital expansion. It is best suited to studios that will actually use the added routing, DSP, and ADAT connectivity.
Portable Starter Interface – Scarlett Solo 4th Gen
If you want an audio interface with adat expansion for a simple home setup, the Scarlett Solo 4th Gen is not that kind of unit—it is a compact 2-channel interface built for one mic and one instrument at a time. It does, however, deliver Focusrite’s latest 24-bit/192kHz conversion, 120dB dynamic range, and improved Air mode in a very small USB-C package.
Best For: Songwriters, solo vocalists, and guitarists who want an easy, portable recording interface.
Pros:
- 120dB dynamic range with the same converter family used in Focusrite’s flagship interfaces
- 1 XLR mic preamp and 1 Hi-Z instrument input for straightforward tracking
- Improved Air mode adds presence and harmonic drive to vocals and guitars
- Includes Pro Tools Intro+, Ableton Live Lite, Cubase LE, and Hitmaker Expansion
Cons:
- No ADAT input, so it cannot be expanded with external preamps or converters
- Only 2 channels, which limits multi-mic recording
- Not aimed at more complex studio routing or larger sessions
The Solo 4th Gen is a strong pick if your priority is quality, simplicity, and portability. It is better suited to lean recording setups than expansion-focused studios, but it brings a lot of polish to a basic desktop workflow.
Expanded Studio Hub – Scarlett 18i16 4th Gen
For shoppers specifically looking for an audio interface with adat expansion, the Scarlett 18i16 4th Gen is the clear fit in this group. It combines 18 inputs and 16 outputs with ADAT, S/PDIF, and MIDI I/O, so it is designed for bigger sessions and more flexible studio setups than a basic two-channel interface.
Best For: Producers and home studios that need room to grow with external digital expansion.
Pros:
- Includes ADAT, plus S/PDIF and MIDI I/O for broader connectivity
- 18 inputs and 16 outputs, including four mic preamps, two Hi-Z inputs, and eight line inputs
- 24-bit/192kHz converters with 122dB dynamic range from Focusrite’s RedNet range
- Auto Gain and Clip Safe help speed up setup and prevent clipping
Cons:
- More expensive and complex than a compact starter interface
- Larger footprint and external power supply make it less portable
- May be more interface than a simple solo recording setup needs
This is the most future-ready option here if you want to build around ADAT expansion. It has the channel count, routing options, and workflow tools to support larger recording needs without jumping to a rack-style system.
Budget Solo Recorder – Scarlett Solo 3rd Gen
This Scarlett Solo 3rd Gen is a straightforward USB-C audio interface for basic recording, not an audio interface with adat expansion. It focuses on clean, low-noise playback, high-headroom instrument input, and Focusrite’s 24-bit/192kHz conversion for users who mainly need a dependable two-channel setup.
Best For: New recordists, podcasters, and musicians who want a simple, reliable entry-level interface.
Pros:
- High-performing mic preamps with switchable Air mode for added clarity
- 24-bit/192kHz converters for pro-sounding recordings
- Low-noise balanced outputs and headphone monitoring for private listening
- Includes Pro Tools Intro+, Ableton Live Lite, Cubase LE, and Hitmaker Expansion
Cons:
- No ADAT support for expansion
- Only suited to small, basic recording setups
- Older 3rd Gen model lacks the newer workflow features found in 4th Gen units
The Solo 3rd Gen remains a solid value if your needs are simple and you want Focusrite sound on a budget. It is not built for expandability, but it covers the essentials well for solo recording and playback.
How We Picked the Best Audio Interface with Adat Expansion
We focused on real-world recording needs: clean preamps, reliable driver performance, enough onboard I/O to cover the immediate job, and ADAT support for adding external preamps or input channels later. We also favored interfaces that make sense for different budgets and studio sizes, from simple two-channel setups to more expandable multi-input units.
Quick Comparison
The most important difference is channel count. Smaller interfaces are best if you record vocals, guitars, podcasts, or demos one source at a time, while larger models are better for drums, bands, and hybrid studios. If you already know you’ll need more mic inputs, prioritize an Audio Interface with Adat Expansion that has at least one optical input and enough onboard routing to manage extra channels cleanly.
Key Buying Factors for an Audio Interface with Adat Expansion
ADAT I/O and Channel Limits
Check whether the unit has one ADAT input or both input and output, and confirm how many channels it supports at your target sample rate. Many interfaces offer eight channels over ADAT at 44.1/48 kHz, but that count can drop at higher sample rates.
Onboard Inputs and Preamps
ADAT is most useful when the interface already has strong core features. Look for enough mic preamps, instrument inputs, and monitor outputs to handle your daily workflow without immediately needing external gear.
Clocking and Compatibility
Stable digital sync matters when you add expansion hardware. Make sure the interface works well with common ADAT expanders and supports straightforward clock source selection for dependable operation.
Workflow and Connectivity
USB-C, direct monitoring, loopback, MIDI, and software mixers can all make a big difference. Choose the set of features that matches how you record, stream, or mix, rather than paying for extras you won’t use.
Who Should Buy Which Audio Interface with Adat Expansion?
Choose a compact model if you mainly record solo content and want occasional expansion. Step up to a mid-size interface if you track multiple singers, small ensembles, or layered productions and want ADAT for future growth. If you’re building a serious studio and expect to expand often, a higher-end Audio Interface with Adat Expansion and stronger routing will give you the most headroom and flexibility.