10 Best Audio Interfaces With ADAT Expansion in 2026 for Flexible Recording Setups

Choosing an audio interface with ADAT expansion gives your studio room to grow without replacing its core recording setup. You can start with a compact interface and add external preamps or converters when you need more microphone inputs.

This roundup compares 10 options across affordable, midrange, and professional-focused setups, including interfaces with built-in ADAT connectivity and an add-on ADAT expander.

Best 10 Audio Interface with Adat Expansion Picks for 2026

High-Input Value – Behringer UMC1820

The Behringer UMC1820 is a practical choice if you need an audio interface with ADAT expansion and plenty of built-in analog inputs. Its 18×20 USB connectivity, eight MIDAS-designed mic preamps, MIDI support, and 24-bit/96 kHz operation suit larger recording setups.

Best For: Home studios recording multiple microphones and instruments at once.

Pros:

• Eight MIDAS-designed mic preamps with 48V phantom power
• 18 inputs and 20 outputs over USB 2.0
• ADAT I/O supports digital expansion
• Works with popular software on Mac and Windows

Cons:

• Maximum sample rate is 96 kHz
• The larger 24.35-inch width may require substantial rack or desk space

Choose the UMC1820 when channel count and flexible connectivity matter more than a compact footprint or higher 192 kHz operation.

Premium Compact Expansion – Focusrite Clarett+ 4Pre

The Focusrite Clarett+ 4Pre is an audio interface with ADAT expansion for producers who want four high-quality preamps, clean conversion, and room to add compatible outboard equipment. Its ADAT input provides eight channels of digital expandability, while USB-C connectivity and 192 kHz support fit modern studio workflows.

Best For: Producers and small studios prioritizing conversion quality, preamp performance, and expandable I/O.

Pros:

• Four Clarett+ preamps with low noise and high headroom
• Eight-channel ADAT optical expansion
• 24-bit/192 kHz operation with improved A-D and D-A converters
• Includes Air mode, two JFET instrument inputs, and dual headphone outputs

Cons:

• Provides fewer built-in inputs than larger 18-input interfaces
• ADAT expansion requires compatible external equipment

The Clarett+ 4Pre is a strong fit for a compact setup that may grow, especially when clean monitoring and detailed recording are high priorities.

Dedicated ADAT Expansion – Behringer ADA8200

The Behringer ADA8200 is a straightforward way to add eight microphone inputs and eight outputs to a compatible setup using ADAT. Its Midas preamps and 24-bit, 44.1/48 kHz conversion make it useful when your main interface already has an ADAT optical input.

Best For: Studios needing an affordable eight-channel ADAT preamp and converter.

Pros:

• Eight-channel microphone preamplifier
• Eight-channel ADAT optical output
• Midas preamps for multi-microphone recording
• 24-bit operation at 44.1 or 48 kHz

Cons:

• Limited to a maximum sample rate of 48 kHz
• Does not function as a standalone USB computer interface according to the supplied connectivity details

If your existing interface supports ADAT and you need more analog microphone inputs, the ADA8200 keeps the expansion task simple and focused.

Full-Scale Studio Hub – Focusrite Scarlett 18i20 4th Gen

The Focusrite Scarlett 18i20 4th Gen is a versatile audio interface with ADAT expansion for engineers who need a broad I/O set in one rack-style unit. It combines eight mic preamps, 18 inputs, 20 outputs, dual ADAT, S/PDIF, MIDI, Word Clock, and 24-bit/192 kHz converters.

Best For: Larger project studios, recording engineers, and multi-source tracking setups.

Pros:

• Eight mic preamps, two Hi-Z inputs, and eight line inputs
• 18-in/20-out USB-C interface with dual ADAT
• 24-bit/192 kHz converters with 122 dB dynamic range
• Auto Gain and Clip Safe simplify level management

Cons:

• Its broad feature set and rack-style size may be more than a small setup needs
• The supplied details list an 8-pound weight, which may matter for portable rigs

The Scarlett 18i20 is the most comprehensive option here for a studio that needs extensive connectivity now and significant digital expansion later.

Professional Control Hub – SSL 12

The SSL 12 is a strong choice if you need an audio interface with ADAT expansion for a professional recording or mixing setup. Its 192kHz/32-bit converters, 62dB of mic gain, built-in talkback microphone, and flexible headphone mixing make it suited to more involved studio workflows.

Best For: Home and project studios that need high-quality conversion, multiple headphone mixes, and future ADAT expansion.

Pros:

• 192kHz/32-bit converters with over 120dB of dynamic range.
• ADAT optical input supports digital expansion.
• Up to four independent, near-zero-latency headphone mixes.
• Built-in talkback microphone and comprehensive monitoring system.

Cons:

• Its 1.43 kg chassis and broad feature set may be more than a simple two-input setup requires.
• SSL 360 software is required for software mixer control.

The SSL 12 stands out for monitoring flexibility and studio-oriented control. It is a particularly practical pick when several performers need separate headphone mixes alongside expandable digital inputs.

All-Rounder Expansion Platform – Scarlett 18i16 4th Gen

The Focusrite Scarlett 18i16 4th Gen is a versatile audio interface with ADAT expansion for producers who need many connections in one unit. It combines four mic preamps, two Hi-Z inputs, eight line inputs, ADAT, S/PDIF, MIDI, and 18-in/16-out operation.

Best For: Producers and small studios recording multiple microphones, instruments, line sources, and expandable digital gear.

Pros:

• 18 inputs and 16 outputs with ADAT, S/PDIF, and MIDI I/O.
• Four preamps provide up to 69dB of gain.
• 24-bit/192kHz converters offer a stated 122dB dynamic range.
• Auto Gain and Clip Safe simplify level management.

Cons:

• Its external power supply adds another piece of equipment.
• The large I/O count may be unnecessary for smaller recording setups.

With extensive analog and digital connectivity, the Scarlett 18i16 is one of the most adaptable options here. Its workflow tools and included software bundle also make it approachable for producers building a complete recording system.

Compact Premium Expansion – Clarett+ 2Pre

The Focusrite Clarett+ 2Pre is a compact audio interface with ADAT expansion for creators who want two high-quality preamps now and up to eight additional digital channels later. It offers Clarett+ preamps, Air circuitry, JFET instrument inputs, improved converters, and USB-C bus power with a suitable 15W port.

Best For: Mobile and desktop setups that prioritize premium two-channel recording with room to expand through ADAT.

Pros:

• Two Clarett+ preamps provide high headroom, low distortion, and low noise.
• ADAT optical input enables eight channels of digital expandability.
• All-analogue Air mode adds relay-controlled ISA 110-style coloration.
• Dedicated JFET instrument inputs preserve guitar tone.

Cons:

• Only two mic preamps are built in.
• USB-C bus power requires a 15W USB-C port.
• Its four balanced outputs may limit larger monitoring or routing setups.

The Clarett+ 2Pre makes sense when recording quality and portability matter more than a large selection of built-in inputs. Its ADAT connection gives the compact interface a clear upgrade path for future microphones or line sources.

Best for Expandable Studio Rigs – Scarlett 16i16 4th Gen

If you need an audio interface with ADAT expansion for a growing studio, the Focusrite Scarlett 16i16 4th Gen offers a flexible 16-in/16-out setup with ADAT, S/PDIF, MIDI, mic, instrument, and line connectivity. Its 192kHz converters, Air modes, Auto Gain, and Clip Safe features make it suited to detailed recording and a streamlined workflow.

Best For: Producers and project studios that need extensive routing and room to expand.

Pros:

• 16 inputs and 16 outputs with ADAT, S/PDIF, and MIDI I/O.
• Two mic preamps, two Hi-Z inputs, and six line inputs support varied sources.
• 24-bit/192kHz converters with a 122dB dynamic range.
• Auto Gain and Clip Safe help simplify level setting and prevent clipping.

Cons:

• Its larger feature set may be more than a basic two-channel setup requires.
• External power is required.

The 16i16 is the strongest fit here for multitrack production and expansion-minded setups. Choose it if you expect to connect multiple instruments, processors, or an ADAT-equipped expander.

Best Compact Starter Pick – Scarlett Solo 3rd Gen

The Scarlett Solo 3rd Gen is a compact choice for anyone seeking an audio interface with ADAT expansion as part of a broader upgrade path, although this model itself focuses on essential two-channel recording rather than ADAT connectivity. It provides one mic preamp, a Hi-Z instrument input, Air mode, and 24-bit/192kHz recording in a portable design.

Best For: Solo musicians, vocalists, guitarists, and podcasters who need a simple desktop interface.

Pros:

• Compact 12.32-ounce design for space-conscious setups.
• Dedicated XLR mic input and Hi-Z instrument input.
• 24-bit/192kHz converters and switchable Air mode.
• Includes recording software and a three-year warranty.

Cons:

• No ADAT, MIDI, or multi-input expansion is listed in the supplied specifications.
• Only one mic preamp limits simultaneous microphone recording.

The Solo is best viewed as a straightforward entry-level interface, not an expandable hub. It makes sense when portability and basic vocal or instrument recording matter more than ADAT-based growth.

Best for Two-Channel Recording – Scarlett 2i2 4th Gen

The Scarlett 2i2 4th Gen is a practical two-channel option for shoppers comparing an audio interface with ADAT expansion against a simpler recording solution. While ADAT is not listed for this model, it delivers two mic preamps, two Hi-Z inputs, 192kHz operation, and useful Auto Gain and Clip Safe controls in a compact USB-C interface.

Best For: Musicians, vocalists, and creators recording up to two sources at once.

Pros:

• Two mic preamps and two Hi-Z instrument inputs.
• 120dB dynamic range and 24-bit/192kHz recording.
• Auto Gain and Clip Safe help protect recordings from poor levels.
• Air modes add presence and harmonic drive to vocals and guitars.

Cons:

• ADAT expansion is not listed in the supplied specifications.
• Two-channel I/O is less suitable for larger multitrack setups.

The 2i2 is a strong everyday interface when two inputs are enough and ease of use is a priority. If your system must grow through ADAT, the 16i16 is the more appropriate choice from this group.

How We Picked the Best Audio Interface with Adat Expansion

We focused on interfaces that support ADAT-based expansion directly or pair naturally with an ADAT converter. The selection covers different channel counts, I/O layouts, connection types, preamp configurations, and price levels so you can match the interface to your current workflow and future plans.

We also considered practical studio needs: simultaneous tracking, headphone monitoring, MIDI connectivity, USB computer connection, rack or desktop placement, and how easily each option can scale beyond its built-in inputs. Check the manufacturer’s specifications for exact supported sample rates and ADAT channel counts before buying.

Quick Comparison

Best For	Recommended Options
Affordable expansion	Behringer UMC1820 or ADA8200
Flexible home and project studios	Focusrite Scarlett 18i20 or 18i16
Compact premium setups	Focusrite Clarett+ 2Pre or 4Pre
High-quality desktop I/O	Solid State Logic SSL 12
Simple two-channel recording	Focusrite Scarlett 2i2 or Solo

Key Buying Factors for an Audio Interface with Adat Expansion

ADAT I/O and Channel Capacity

Confirm that the interface has an ADAT input, output, or both. An ADAT input lets you add channels from an external preamp or converter, while an output can feed compatible digital equipment. At standard sample rates, one optical ADAT connection commonly carries up to eight channels; higher sample rates may reduce that count through S/MUX.

Built-In Inputs and Expansion Path

Think about how many sources you record at once. A solo creator may need only two preamps today, while a band, drum kit, or rehearsal room can quickly require eight or more. Interfaces such as the UMC1820 and Scarlett 18i20 provide a stronger starting point, while smaller models can remain useful as compact front ends.

Monitoring, Drivers, and Workflow

Look for enough headphone outputs, line outputs, MIDI ports, and low-latency monitoring features for your setup. Reliable drivers and software support matter just as much as headline I/O, especially when an interface will remain connected for long sessions.

Who Should Buy Which Audio Interface with Adat Expansion?

Choose the Behringer UMC1820 or ADA8200 if keeping costs low is the priority and you want a practical route to more channels. The ADA8200 is an expander rather than a complete computer interface, so it needs a compatible ADAT-equipped interface.

Choose a Focusrite Scarlett 18i20, 18i16, or 16i16 for a versatile home studio that needs substantial I/O and a clear upgrade path. Choose the Clarett+ 2Pre or 4Pre if you want a more premium, compact interface for recording and mobile workflows.

Choose the SSL 12 if desktop ergonomics and a robust set of analog connections matter. Choose the Scarlett Solo or 2i2 for vocals, instruments, podcasts, or basic production—but verify the exact expansion capability before planning an ADAT-based system, since these entry-level models may not provide the same ADAT connectivity as the larger interfaces.