Choosing an audio interface with ADAT expansion lets you add microphone preamps and line inputs without replacing your entire recording rig. It is a practical upgrade for home studios, bands, project rooms, and producers who expect their input needs to grow.
This roundup compares 10 options across USB interfaces and dedicated ADAT expanders, with attention to I/O, connectivity, conversion, monitoring, and long-term flexibility.
Best 10 Audio Interface with Adat Expansion Picks for 2026
Best Value ADAT Expander
- Eight microphone preamplifier channels
- ADAT optical output for expansion
- 24-bit operation at 44.1/48kHz
Best For: Adding eight mic inputs to an ADAT-equipped recording system
High-Resolution ADAT Expansion
- Eight-channel ADAT input expander
- Supports 24-bit/96kHz operation
- Includes rack ears and power supply
Best For: High-resolution input expansion in a rack-based studio
All-in-One USB Expansion Hub
- 18x20 USB audio and MIDI interface
- Eight MIDAS mic preamplifiers
- ADAT I/O plus 24-bit/96kHz audio
Best For: Computer-based studios needing broad I/O and ADAT
Premium Modern Workflow
- 16-in/16-out USB interface with ADAT
- 24-bit/192kHz converters
- Auto Gain and Clip Safe tools
Best For: Producers wanting high-resolution USB recording with expansion
Compact Starter Pick
- Two combo inputs with phantom power
- Direct monitoring for low-latency listening
- No ADAT expansion listed
Best For: Beginners and portable two-input recording
Best Expansion Hub
Focusrite Scarlett 18i16 4th Gen
- ADAT, S/PDIF, and MIDI I/O included
- 18 inputs and 16 outputs
- 24-bit/192kHz conversion with Auto Gain
Best For: Expandable home studios and producers needing extensive I/O
High-Resolution Compact Pick
- 24-bit/192kHz recording
- USB-C for computers and mobile devices
- No ADAT expansion listed
Best For: Portable two-channel recording at higher resolution
Best Overall
Focusrite Scarlett 18i20 4th Gen
- Eight mic preamps plus extensive analog and digital I/O
- Dual ADAT, S/PDIF, MIDI, and Word Clock support
- 24-bit/192kHz conversion with Auto Gain and Clip Safe
Best For: Expanding project studios and multi-source recording
Best Compact ADAT Interface
- Two Clarett+ preamps with low noise and high headroom
- ADAT input supports eight additional digital channels
- USB-C bus power and 24-bit/192kHz operation
Best For: Compact studios planning future channel expansion
Best Value ADAT Expander – 8-Channel Midas Preamps
Behringer ADA8200 Audiophile 8 In/8 Out ADAT Audio Interface with Midas Mic Preamplifiers
Check Price On AmazonThe Behringer ADA8200 is a straightforward audio interface with ADAT expansion for adding eight microphone inputs and eight outputs to a compatible setup. Its Midas-designed preamplifiers, 24-bit conversion, and 44.1/48kHz operation make it suited to expanding a recording rig without adding a computer connection of its own.
Best For: Recording setups that need eight additional mic inputs and ADAT optical connectivity.
Pros:
- Provides eight microphone preamplifier channels.
- Includes eight-channel ADAT optical output.
- Uses 24-bit AD/DA conversion at 44.1/48kHz.
- Features Midas mic preamplifiers and wired connectivity.
Cons:
- Maximum sample rate is 48kHz.
- Designed as an expansion unit rather than a standalone USB computer interface.
The ADA8200 is a practical choice when channel count and simple ADAT expansion matter more than high-resolution sample rates or integrated USB connectivity.
High-Resolution ADAT Expansion – Arturia AudioFuse X8 IN
The Arturia AudioFuse X8 IN is an audio interface with ADAT expansion built specifically to add eight inputs to a compatible setup. With 24-bit/96kHz operation, rack ears, an included power supply, and Mac and Windows software compatibility, it fits producers who want a higher-resolution expansion option.
Best For: Expanding an existing ADAT system with eight inputs and support for up to 96kHz operation.
Pros:
- Offers eight input channels for ADAT-based expansion.
- Supports 24-bit/96kHz operation.
- Includes rack ears for installation flexibility.
- Comes with a power supply and bundled software.
Cons:
- Provides input expansion rather than a stated eight-output configuration.
- Requires a compatible ADAT-equipped host interface.
Choose the AudioFuse X8 IN if high-resolution conversion and rack-ready installation are priorities for your expanded recording system.
All-in-One USB Expansion Hub – UMC1820 with ADAT I/O
The Behringer UMC1820 combines USB audio, MIDI, and ADAT I/O in one 18×20 interface. For buyers seeking an audio interface with ADAT expansion, it offers eight MIDAS-designed mic preamplifiers, 24-bit/96kHz resolution, and computer connectivity for recording microphones and instruments.
Best For: Home and project studios needing a USB interface with built-in mic inputs, MIDI, and ADAT expansion.
Pros:
- Provides 18 inputs and 20 outputs over USB 2.0.
- Includes ADAT I/O for adding compatible digital equipment.
- Features eight MIDAS-designed mic preamplifiers with 48V phantom power.
- Supports 24-bit/96kHz audio and popular recording software.
Cons:
- Its larger 18×20 feature set may be more than a basic expansion-only setup requires.
- The supplied details do not specify the number of ADAT channels at each sample rate.
The UMC1820 is a versatile centerpiece for a computer-based studio, especially when you want ADAT expansion alongside substantial analog I/O, MIDI, and microphone preamps.
Premium Modern Workflow – Scarlett 16i16 4th Gen
The Focusrite Scarlett 16i16 4th Gen is a USB audio interface with ADAT expansion, S/PDIF, MIDI, and 16 inputs and 16 outputs. Its two mic preamps, two Hi-Z inputs, six line inputs, 24-bit/192kHz converters, Auto Gain, and Clip Safe tools make it a flexible hub for detailed recording workflows.
Best For: Producers who want modern USB connectivity, high-resolution conversion, ADAT expansion, and automated level-management features.
Pros:
- Combines 16 inputs and 16 outputs with ADAT, S/PDIF, and MIDI I/O.
- Offers two mic preamps, two Hi-Z inputs, and six line inputs.
- Supports 24-bit/192kHz conversion with a stated 122dB dynamic range.
- Includes Air modes, Auto Gain, Clip Safe, and bundled recording software.
Cons:
- Only two mic preamps are built in.
- Requires an external power supply.
- The supplied details do not specify the ADAT channel count at each sample rate.
The Scarlett 16i16 is a strong fit for producers who want ADAT expansion without giving up a modern USB workflow, high-resolution conversion, or hands-on recording aids.
Compact Starter Pick – M-Audio M-Track Duo
The M-AUDIO M-Track Duo is a compact two-channel option for podcasting, recording, and livestreaming. However, if you specifically need an audio interface with ADAT expansion, this model is not the right fit because its listed connectivity does not include ADAT.
Best For: Beginners, podcasters, and portable two-input recording setups.
Pros:
- Two combo XLR/line/instrument inputs with phantom power
- Zero-latency monitoring through the USB/Direct switch
- Includes MPC Beats and supports 48kHz recording
Cons:
- No ADAT expansion listed
- Limited to two input channels
The M-Track Duo keeps the setup simple and portable, making it useful for basic home recording and content creation. Choose a larger interface instead if expanding with external ADAT-equipped hardware is a priority.
Best Expansion Hub – Focusrite Scarlett 18i16 4th Gen
The Focusrite Scarlett 18i16 4th Gen is the strongest match here for anyone shopping for an audio interface with ADAT expansion. It combines ADAT with S/PDIF, MIDI I/O, four mic preamps, and a broad input/output configuration for a growing studio.
Best For: Producers and home studios that need extensive I/O and digital expansion.
Pros:
- 18 inputs and 16 outputs with ADAT, S/PDIF, and MIDI I/O
- Four mic preamps, two Hi-Z inputs, and eight line inputs
- 24-bit/192kHz converters with a stated 122dB dynamic range
- Auto Gain and Clip Safe simplify level management
Cons:
- Larger and heavier than the compact two-input models
- Requires external power
With dedicated ADAT connectivity and substantial analog I/O, the Scarlett 18i16 offers room to add channels and integrate more studio equipment. Its fourth-generation workflow features also make it practical for recording sessions where fast, controlled setup matters.
High-Resolution Compact Pick – M-Audio M-Track Duo HD
The M-AUDIO M-Track Duo HD is a portable two-in/two-out interface with USB-C and 24-bit/192kHz recording. It is suitable for straightforward recording and mobile setups, but it is not an audio interface with ADAT expansion because ADAT is not listed among its connections.
Best For: Mobile producers, musicians, and podcasters who want high-resolution two-channel recording.
Pros:
- 24-bit/192kHz audio resolution
- Two combo inputs for microphones, instruments, and line-level sources
- USB-C connectivity works with Mac, PC, iOS, and Android devices
- Independent headphone level control and Direct/USB monitoring
Cons:
- No ADAT expansion listed
- Only two input and two output channels
The Duo HD improves on a basic portable interface with higher-resolution conversion and modern USB-C connectivity. It is a sensible compact choice when portability matters more than expandable digital I/O.
Best Overall – Focusrite Scarlett 18i20 4th Gen
The Focusrite Scarlett 18i20 4th Gen is a strong choice if you need an audio interface with ADAT expansion for a growing studio. It combines eight mic preamps, dual ADAT, S/PDIF, MIDI, Word Clock, and extensive analog I/O in a rack-friendly interface.
Best For: Project studios recording multiple microphones, instruments, and external hardware.
Pros:
- Eight mic preamps, two Hi-Z inputs, and eight line inputs support versatile recording setups.
- Dual ADAT, S/PDIF, MIDI I/O, and Word Clock provide extensive expansion and synchronization options.
- 24-bit/192kHz converters offer a 122dB dynamic range, while Auto Gain and Clip Safe simplify level management.
- Includes Air modes and a substantial software bundle with Pro Tools Intro+, Ableton Live Lite, and Cubase LE.
Cons:
- Its broad feature set and eight-pound chassis may be more than a small setup requires.
- It requires a USB connection and is designed for Mac, Windows, or iOS workflows.
Choose the Scarlett 18i20 when you want substantial I/O now and a clear path to larger digital setups later. It is especially well suited to users who value studio connectivity alongside straightforward recording tools.
Best Budget Option – Depusheng 4-Channel USB Interface
The Depusheng 4-Channel USB Interface offers a straightforward entry point for home recording, but it is not an audio interface with ADAT expansion. Its four combo inputs, 24-bit/192kHz support, ASIO drivers, and phantom power cover basic multi-source recording needs.
Best For: Beginners and home users who need four simultaneous inputs without digital expansion requirements.
Pros:
- Four combo inputs accept microphones, guitars, and line-level sources.
- Supports 24-bit/192kHz recording and includes ASIO drivers for low-latency operation.
- Provides +48V phantom power, direct/DAW monitoring, Hi-Z switches, and four TS main outputs.
- Includes a USB cable, power adapter, data cable, and ASIO driver flash drive.
Cons:
- The supplied notes do not list an ADAT input or output, so it cannot expand through ADAT.
- Operating-system details specify Windows compatibility rather than Mac support.
- Its one-year warranty is shorter than the warranties listed for the Focusrite models.
This is a practical low-cost option for a compact recording rig, especially when four inputs are enough. If your setup may grow with an ADAT-equipped preamp or converter, consider an interface that explicitly includes optical expansion instead.
Best Compact ADAT Interface – Focusrite Clarett+ 2Pre
The Focusrite Clarett+ 2Pre is a compact audio interface with ADAT expansion for creators who need high-quality front-end inputs and room to add more channels. It pairs two Clarett+ preamps and JFET instrument inputs with an optical ADAT input supporting up to eight additional channels.
Best For: Small studios and mobile setups that need premium two-channel recording with future expansion.
Pros:
- Two low-noise Clarett+ preamps provide substantial headroom and low distortion.
- ADAT optical input adds eight channels of digital expandability with compatible equipment.
- All-analogue Air Premium circuitry, JFET instrument inputs, and improved headphone output support detailed monitoring and tracking.
- USB-C bus power, 24-bit/192kHz operation, four balanced outputs, and a software bundle suit flexible studio workflows.
Cons:
- With only two built-in mic preamps, additional channels require compatible ADAT equipment.
- USB-C bus power requires a 15W USB-C port.
- It has fewer onboard inputs and outputs than the Scarlett 18i20.
The Clarett+ 2Pre is a smart fit when sound quality, portability, and expansion matter more than a large built-in I/O count. Its ADAT input lets you start small while leaving room for an eight-channel preamp such as the Clarett OctoPre.
How We Picked the Best Audio Interface with Adat Expansion
We focused on connection options, channel capacity, preamp count, ADAT compatibility, computer connectivity, monitoring features, and overall upgrade potential. The selection includes dedicated eight-channel expanders such as the Behringer ADA8200 and Arturia AudioFuse X8 IN, as well as USB interfaces with ADAT I/O, including Focusrite Scarlett, Behringer, and Clarett+ models.
Because these products serve different roles, we did not judge them solely by input count. A compact interface may be the better choice for a small recording setup, while a dedicated expander can be the most efficient way to add channels to an existing interface.
Quick Comparison
| Type | Best For | What to Check |
|---|---|---|
| ADAT expander | Adding multiple inputs to an existing interface | ADAT input on the main interface, clocking, and channel format |
| USB interface with ADAT | Building a central recording hub | Native analog I/O, USB compatibility, and expansion capacity |
| Compact USB interface | Portable or small-scale recording | Whether it supports ADAT at all; many entry-level models do not |
Key Buying Factors for an Audio Interface with Adat Expansion
ADAT Compatibility and Channel Count
Confirm that the main interface has an ADAT input if you are buying an expander. Standard ADAT commonly carries eight channels at 44.1 or 48 kHz, while higher sample rates may reduce the available channel count through S/MUX. Check the exact specification for the sample rate you plan to use.
Analog Inputs and Preamps
Count the microphone, line, and instrument inputs you need today, then allow room for future sources. Dedicated expanders often provide eight additional mic or line channels, while larger USB interfaces may combine front-panel inputs with rear-panel line connections. Phantom power control, gain range, and pad options also matter when connecting microphones and outboard equipment.
Clocking, Drivers, and Monitoring
Reliable digital clocking helps prevent clicks and dropouts. Look for clear word-clock or ADAT synchronization information, stable ASIO support on Windows, and current macOS compatibility. Direct monitoring, headphone outputs, cue mixes, and loopback can be more important in daily use than maximum sample rate.
USB Connection and Workflow
USB-C describes the connector, not necessarily the performance level, so verify the interface’s actual USB specification and included cable requirements. Consider output count, MIDI connectivity, control software, and whether the unit can operate independently of a computer.
Who Should Buy Which Audio Interface with Adat Expansion?
Choose a dedicated ADAT expander if you already own a compatible interface and mainly need more microphone or line inputs. The Behringer ADA8200 and Arturia AudioFuse X8 IN fit this role, with different feature sets and price considerations.
Choose a larger USB interface with ADAT when you want one central device for recording, monitoring, and future expansion. The Focusrite Scarlett 18i16 and 18i20, Behringer UMC1820, and Clarett+ 2Pre are better suited to studios that need broader routing or more connection options.
For smaller setups, the Scarlett 16i16 or a compact M-Track model may be sufficient, but verify expansion support before buying. Basic interfaces such as the Depusheng model can suit simple home recording, yet they are less appropriate if adding ADAT channels is a firm requirement. Match the purchase to your current input count, expected growth, and the interface you already own.