If you need more channels without replacing your whole setup, an audio interface with ADAT expansion is one of the smartest upgrades you can make.
This guide focuses on interfaces that scale with your studio, whether you are recording vocals, drums, podcasts, or a full band.
Best 10 Audio Interface with Adat Expansion Picks for 2026
High-I/O Studio Pick
Scarlett 18i20 4th Gen USB-C Interface
- 18 inputs, 20 outputs, dual ADAT, and Word Clock
- 8 mic preamps with 69 dB gain and 24-bit/192kHz conversion
- Auto Gain, Clip Safe, and bundled recording software
Best For: Engineers and project studios needing a central expandable interface
ADAT Input Expander
ADA8200 8-Channel ADAT Mic Preamp
- Adds eight Midas mic preamps over ADAT
- Wired expansion for compatible recording systems
- Max sample rate is 48 kHz
Best For: Users who need eight extra mic inputs for an existing ADAT rig
Compact Expandable Pick
Scarlett 16i16 4th Gen USB-C Interface
- 16 inputs, 16 outputs, plus ADAT and S/PDIF
- 2 mic preamps with 69 dB gain and 24-bit/192kHz conversion
- Auto Gain and Clip Safe help simplify recording
Best For: Producers wanting a compact USB-C interface with expansion options
Budget Beginner Pick
M-Track Duo USB Audio Interface
- Two combo inputs for vocals, guitar, and line sources
- 48 kHz recording with zero-latency monitoring
- Includes MPC Beats software
Best For: Beginners needing a compact 2-channel interface
Premium Studio Interface
Neumann MT 48 USB-C Audio Interface
- 136 dB dynamic range and premium conversion
- ADAT, S/PDIF, USB, and AES67 connectivity
- DSP processing with 4 independent mixers
Best For: High-end studios needing expansion and advanced routing
Compact Starter Interface
Focusrite Scarlett Solo 4th Gen
- 120 dB dynamic range with updated converters
- Air mode for vocal and guitar presence
- Includes recording software and plugins
Best For: Solo recording and simple home studio setups
Expandable Rack Interface
Focusrite Clarett+ 8Pre 18-In/20-Out
- Eight Clarett+ preamps with low-noise headroom
- ADAT optical input for eight extra channels
- Two headphone outputs and 10 balanced outputs
Best For: Studios that need onboard inputs plus ADAT growth
Best with Extra Features
Focusrite Scarlett Solo 3rd Gen USB-C Audio Interface
- 1 XLR mic preamp and 1 Hi-Z input
- 24-bit/192kHz conversion with Air mode
- Simple 2-channel layout for solo recording
Best For: Beginners recording vocals, guitar, or podcasts
Expandable Studio Two-Input
Focusrite Clarett+ 2Pre 10-In/4-Out USB-C Audio Interface
- ADAT optical input for eight-channel expansion
- Two Clarett+ preamps with Air mode
- Improved converters and transparent headphone output
Best For: Growing studios that need expandability and strong sound quality
Producer Workhorse Interface
Focusrite Scarlett 18i16 4th Gen USB-C Audio Interface
- 18-in/16-out layout with ADAT support
- Four preamps, plus S/PDIF and MIDI I/O
- Auto Gain and Clip Safe for faster workflows
Best For: Producers who need high I/O counts and future expansion
High-I/O Studio Pick – Scarlett 18i20 4th Gen USB-C Interface
If you need an audio interface with ADAT expansion for a larger studio setup, the Focusrite Scarlett 18i20 4th Gen is built for serious routing and multitrack recording. It offers 18 inputs and 20 outputs, including eight mic preamps, dual ADAT, S/PDIF, MIDI I/O, and Word Clock, so it can serve as the center of a growing system.
Best For: Project studios and engineers who want a high-input USB-C interface with room to expand.
Pros:
- 18 inputs and 20 outputs give you plenty of connectivity for tracking bands or complex sessions.
- Dual ADAT, S/PDIF, MIDI I/O, and Word Clock support make expansion and integration straightforward.
- 4th Gen preamps provide up to 69 dB of gain, with 24-bit/192kHz converters and 122 dB dynamic range.
- Auto Gain and Clip Safe help speed up setup and reduce the risk of clipped takes.
Cons:
- More interface than a simple solo or podcasting setup needs.
- Requires more rack and desk space than compact units.
- Best value comes when you actually use the extra I/O and expansion options.
This is a strong choice if you want one interface to handle core recording duties today and expansion later. The included software bundle also adds useful tools for getting started quickly.
ADAT Input Expander – ADA8200 8-Channel ADAT Mic Preamp
Behringer ADA8200 Audiophile 8 In/8 Out ADAT Audio Interface with Midas Mic Preamplifiers
Check Price On AmazonThe Behringer ADA8200 is a practical audio interface with ADAT expansion use case if you mainly need to add more mic inputs to an existing setup. It provides eight channels and connects over ADAT Light Pipe, making it a straightforward way to expand compatible recording systems.
Best For: Expanding an ADAT-capable interface with eight additional microphone preamps.
Pros:
- Eight Midas preamps add a full bank of extra microphone inputs.
- ADAT Light Pipe connectivity makes it useful as an expansion unit.
- Simple wired setup keeps the workflow focused on getting more channels into your system.
- Compact enough to fit into a broader studio rig without much fuss.
Cons:
- Max sample rate is 48 kHz, which is lower than many modern interfaces.
- It is an expander, not a full-featured standalone interface for every workflow.
- Requires an ADAT-compatible main interface to be useful.
If your main need is more microphone inputs rather than a new centerpiece interface, the ADA8200 does exactly that. It is best treated as an expansion piece for systems that already have ADAT input available.
Compact Expandable Pick – Scarlett 16i16 4th Gen USB-C Interface
The Focusrite Scarlett 16i16 4th Gen is a smart audio interface with ADAT expansion for producers who want a smaller desktop footprint without giving up upgrade paths. It includes 16 inputs and 16 outputs, plus ADAT, S/PDIF, and MIDI I/O, so it can grow with a more advanced studio setup.
Best For: Producers who want a compact interface with ADAT connectivity and flexible routing.
Pros:
- 16 inputs and 16 outputs provide solid flexibility for home and project studios.
- ADAT, S/PDIF, and MIDI I/O make it easy to integrate with other gear.
- 4th Gen preamps offer up to 69 dB of gain, with 24-bit/192kHz conversion and 122 dB dynamic range.
- Auto Gain and Clip Safe are useful workflow tools for quick setup and safer recording.
Cons:
- Only two mic preamps, so larger analog mic setups need expansion.
- Not as input-heavy as larger rack interfaces.
- Best suited to users who can take advantage of its ADAT and digital I/O features.
For a smaller interface that still supports expansion, the 16i16 hits a useful middle ground. It is especially appealing if you want quality conversion and modern workflow tools in a compact format.
Budget Beginner Pick – M-Track Duo USB Audio Interface
The M-AUDIO M-Track Duo is a simple entry-level audio interface, but it is not an audio interface with ADAT expansion. Instead, it focuses on two-channel recording for podcasting, streaming, and basic music capture with straightforward USB operation.
Best For: Beginners who need a compact 2-channel interface for recording or streaming.
Pros:
- Two combo XLR/line/instrument inputs cover vocals, guitar, and line sources.
- 48 kHz resolution is enough for casual recording and streaming use.
- USB/Direct monitoring switch helps achieve zero-latency monitoring.
- Includes MPC Beats software for getting started with production.
Cons:
- No ADAT expansion or digital I/O for future channel growth.
- Only two channels, so it is limited for larger recording sessions.
- 48 kHz maximum sample rate is modest compared with higher-end interfaces.
This is a practical budget pick if you only need a small, portable interface. If ADAT expansion is a priority, though, you will want to move up to a different model.
Premium Studio Interface – Neumann MT 48 USB-C Audio Interface
If you want an audio interface with adat expansion that leans hard into premium conversion and flexible routing, the Neumann MT 48 is built for exactly that kind of studio use. It combines USB-C, ADAT, S/PDIF, and AES67 connectivity with a touchscreen workflow, making it a strong fit for setups that need both high-end sound and network-ready expansion.
Best For: Engineers and musicians who want top-tier conversion, multiple monitoring paths, and advanced digital connectivity in one desktop interface.
Pros:
- Class-leading AD conversion with a 136 dB dynamic range.
- ADAT, S/PDIF, USB, and AES67 connectivity for flexible integration.
- 2 mic/line preamps, 2 line/instrument inputs, and 4 line/monitor outputs.
- Includes DSP processing, 4 independent mixers, and integrated talkback.
Cons:
- Only 2 onboard mic preamps, so larger recording sessions will still need expansion.
- Its advanced feature set may be more than casual users need.
The MT 48 is the most feature-rich option in this group, especially if you care about premium audio quality and serious digital routing. If your workflow benefits from ADAT expansion plus high-end monitoring and mixing tools, this is a very capable centerpiece interface.
Compact Starter Interface – Focusrite Scarlett Solo 4th Gen
The Focusrite Scarlett Solo 4th Gen is a simple USB-C interface for basic recording, not an audio interface with adat expansion. It focuses on a mic-and-guitar workflow with 24-bit/192kHz recording, a 120 dB dynamic range, and Focusrite’s Air mode for adding presence to vocals and guitars.
Best For: Solo singers, songwriters, and home recordists who only need a straightforward 2-channel interface.
Pros:
- 120 dB dynamic range with Focusrite’s latest converters.
- Air mode adds extra presence and harmonic drive to vocals and guitars.
- Includes Pro Tools Intro+, Ableton Live Lite, Cubase LE, and Hitmaker Expansion.
- USB-C design with Mac, Windows, and iPad compatibility.
Cons:
- No ADAT connectivity or expansion options.
- Only 1 XLR mic preamp and 1 Hi-Z input.
- Not suited for multi-input recording sessions.
This is a practical entry-level choice if your priority is easy recording rather than future expandability. It sounds polished for its size, but anyone shopping specifically for ADAT support will need a different model.
Expandable Rack Interface – Focusrite Clarett+ 8Pre 18-In/20-Out
The Focusrite Clarett+ 8Pre is a strong pick if you need an audio interface with adat expansion for a growing studio. It pairs eight Clarett+ preamps with ADAT optical input, so you can add eight more channels of digital expandability while keeping the interface centered on clean capture and transparent monitoring.
Best For: Recording studios that want eight onboard preamps now and room to scale through ADAT later.
Pros:
- Eight Clarett+ preamps with low-noise, high-headroom performance.
- ADAT optical input adds eight channels of digital expansion.
- New A-D and D-A converters aim for low distortion and high dynamic range.
- Two transparent headphone outputs and 10 balanced outputs support flexible monitoring.
Cons:
- Designed as a rack interface, so it takes more space than compact desktop models.
- Expansion depends on ADAT-compatible outboard gear.
For studios that need a proven path to more inputs, the Clarett+ 8Pre covers the basics well and leaves room to grow. Its mix of eight onboard preamps, ADAT expansion, and strong converter specs makes it especially practical for larger tracking sessions.
Best with Extra Features – Focusrite Scarlett Solo 3rd Gen USB-C Audio Interface
If you need an audio interface with adat expansion later, the Scarlett Solo 3rd Gen is really the opposite: it is a compact 2-in/2-out starter interface built for simple vocal and guitar recording. It keeps the workflow straightforward with one XLR mic preamp, one Hi-Z instrument input, and 24-bit/192kHz conversion for clean capture and playback.
Best For: Solo artists, podcasters, and beginners who want a small, easy-to-use interface for vocals and guitar.
Pros:
- Bright-sounding 3rd Gen mic preamp with switchable Air mode for extra clarity
- High-headroom instrument input helps keep guitar or bass takes free of clipping
- 24-bit/192kHz converters support detailed recording and mixing
- Two low-noise balanced outputs plus private headphone listening
Cons:
- No ADAT input or other digital expansion options
- Only one mic preamp and one instrument input, so it is limited for larger sessions
As a budget-friendly recording tool, the Solo focuses on sound quality and simplicity rather than future expandability. If your priority is a small interface for one voice and one instrument, it delivers the essentials well.
Expandable Studio Two-Input – Focusrite Clarett+ 2Pre 10-In/4-Out USB-C Audio Interface
If you want an audio interface with adat expansion, the Clarett+ 2Pre is the most directly suited choice in this group. Its ADAT optical input lets you expand with compatible outboard gear such as the Clarett OctoPre, while the two Clarett+ preamps, JFET instrument inputs, and improved converters make it a serious step-up for recording quality.
Best For: Home studios and growing setups that want high-quality inputs now with room to expand later.
Pros:
- ADAT optical input adds eight-channel digital expandability
- Two professional-quality Clarett+ preamps with low distortion and ultra-low noise
- All-analogue Air circuitry adds a 4dB high-frequency lift on every preamp
- Improved A-D/D-A converters and a transparent headphone output
Cons:
- Only two built-in mic preamps before you add ADAT expansion
- USB-C bus power requires a 15W USB-C port
This is the strongest fit if your buying goal is flexibility, because it combines solid core I/O with a clear path to more channels. It is built for users who want better conversion and preamps today, but may need more inputs tomorrow.
Producer Workhorse Interface – Focusrite Scarlett 18i16 4th Gen USB-C Audio Interface
For buyers comparing an audio interface with adat expansion, the Scarlett 18i16 4th Gen stands out because it includes ADAT alongside a much larger built-in I/O count. With 18 inputs, 16 outputs, four mic preamps, line inputs, S/PDIF, and MIDI I/O, it is built for more complex recording and production setups.
Best For: Producers and project studios that need lots of onboard connections plus ADAT for future growth.
Pros:
- 18-in/16-out design gives plenty of room for multi-source sessions
- Four 4th Gen preamps deliver up to 69dB of gain
- ADAT, S/PDIF, and MIDI I/O support flexible studio routing
- Auto Gain and Clip Safe help speed setup and avoid distortion
Cons:
- More interface than casual solo recordists typically need
- Requires external power supply
This model is the most expansion-ready and session-friendly of the three, especially if you expect your input needs to grow. It makes sense when you want a central studio interface that can handle both present-day recording and later expansion.
How We Picked the Best Audio Interface with Adat Expansion
We looked for units that make expansion practical, not just possible. That means solid ADAT support, dependable driver performance, enough analog I/O for real-world sessions, and a feature set that matches common studio needs. We also favored models that offer a clear upgrade path, so you can start small and add a preamp or converter later.
Quick Comparison
In this roundup, you will see a mix of compact 2-channel interfaces, mid-size desktop units, and larger 18-channel options. Smaller models are best if you mainly record one or two sources now and plan to expand later. Larger interfaces are better when you already need multiple mic inputs, line inputs, or direct monitoring options right away. The right choice depends on how many channels you need today and how much headroom you want for tomorrow.
Key Buying Factors for an Audio Interface with Adat Expansion
ADAT Channel Count and Sample Rate
ADAT typically adds up to eight channels at 44.1 or 48 kHz, but that count can drop at higher sample rates. If you plan to run sessions at 88.2 or 96 kHz, check whether the interface supports S/MUX and how many extra channels remain available.
Clocking and Sync Stability
Expansion works best when the interface and the external preamp or converter stay tightly synchronized. Look for reliable clocking options, easy master/slave setup, and clear sync indicators so you avoid pops, clicks, and drift.
Analog Inputs You Need Now
ADAT is great for growth, but it should not force you into a setup that is too limited today. Consider how many mic preamps, line inputs, instrument inputs, and monitor outputs you need before adding expansion.
Monitoring and Low-Latency Workflow
Direct monitoring, software control, and flexible cue mixes matter if you track often. A good interface should let you hear performers clearly without making the setup complicated.
Connection Type and System Fit
USB-C is common here, but what matters most is driver quality and compatibility with your computer and DAW. If you use outboard gear or networked audio, advanced options like AES67 may be useful, but they are not necessary for most buyers.
Who Should Buy Which Audio Interface with Adat Expansion?
If you are building a home studio, a compact interface with ADAT expansion gives you a cost-effective way to start small and scale up. If you record bands, drums, or ensembles, choose a larger interface with more built-in inputs so expansion becomes a bonus rather than a requirement. If you want premium conversion, advanced monitoring, and high-end workflow tools, step up to a more capable flagship model. If you only need a simple one- or two-input setup, a smaller interface can still be a good buy, but it is less future-proof than a true Audio Interface with Adat Expansion.