10 Best Audio Interfaces With ADAT Expansion in 2026 for Growing Studios

Adding microphones, synths, drum machines, or outboard gear can quickly exceed the I/O on a basic recording interface. An audio interface with ADAT expansion gives your studio a practical path to more inputs without replacing your entire setup.

We selected 10 options ranging from dedicated eight-channel ADAT expanders to full USB-C interfaces with expandable digital I/O, covering home studios, project rooms, podcast setups, and serious multitrack recording.

Best 10 Audio Interface with Adat Expansion Picks for 2026

Budget ADAT Expansion – Behringer ADA8200

The Behringer ADA8200 is a practical choice when you need an audio interface with ADAT expansion for adding eight microphone or line inputs to a compatible setup. Its eight Midas microphone preamplifiers and 24-bit, 44.1/48kHz conversion make it suited to multichannel recording at standard project-studio sample rates.

Best For: Home studios and recording setups that need eight additional preamped inputs over ADAT.

Pros:

• Provides eight microphone preamplifier channels.
• Includes ADAT optical connectivity for expansion.
• Supports 24-bit conversion at 44.1/48kHz.

Cons:

• Maximum sample rate is 48kHz.
• Requires a compatible ADAT-equipped interface or device.

The ADA8200 focuses on affordable channel expansion rather than high-rate conversion. It is a sensible fit for users prioritizing eight additional inputs and straightforward ADAT integration.

High-Resolution ADAT Expansion – Arturia AudioFuse X8 IN

The Arturia AudioFuse X8 IN is an audio interface with ADAT expansion designed to add eight inputs while supporting 24-bit/96kHz operation. Rack ears, an included power supply, and Mac and Windows compatibility make it a flexible option for a more permanent studio installation.

Best For: Studios that want eight-channel ADAT input expansion with high-resolution recording support.

Pros:

• Offers eight input channels through ADAT connectivity.
• Supports 24-bit/96kHz operation.
• Includes rack ears and a power supply.

Cons:

• Expands inputs rather than serving as a complete standalone recording system.
• Requires a compatible ADAT-equipped host interface.

With its eight-channel design and 96kHz capability, the AudioFuse X8 IN is aimed at users who want more resolution than basic 44.1/48kHz expanders provide. Its rack-mounting accessories also suit organized studio rigs.

Complete Recording Hub – Focusrite Scarlett 18i20 4th Gen

The Focusrite Scarlett 18i20 4th Gen is a full USB audio interface with ADAT expansion, combining eight mic preamps with Hi-Z, line, ADAT, S/PDIF, MIDI, and Word Clock connections. Its 24-bit/192kHz converters, Auto Gain, Clip Safe, and included software make it suitable for larger recording workflows.

Best For: Project and professional studios needing a central interface with built-in inputs plus dual ADAT expansion.

Pros:

• Provides eight mic preamps and dual ADAT connectivity.
• Supports 24-bit/192kHz conversion with 122dB dynamic range.
• Includes Auto Gain, Clip Safe, MIDI, S/PDIF, and Word Clock.

Cons:

• Its extensive feature set may be more than a small setup needs.
• ADAT expansion requires compatible external digital hardware.

The Scarlett 18i20 is more than a simple expander: it is a high-channel-count USB hub with room to grow through dual ADAT. It is the strongest fit here for users building a versatile, expandable studio centerpiece.

Premium Monitoring Workflow – Solid State Logic SSL 12

The Solid State Logic SSL 12 is a USB audio interface with ADAT expansion for users who also value detailed conversion and flexible monitoring. It offers 192kHz/32-bit converters, 62dB of mic gain, an ADAT optical input, talkback, and up to four independent near-zero-latency headphone mixes.

Best For: Small professional studios and producers who need ADAT input expansion with advanced headphone and monitoring features.

Pros:

• Includes an ADAT optical input for adding compatible digital channels.
• Offers 192kHz/32-bit converters with over 120dB dynamic range.
• Provides talkback and up to four independent headphone mixes.

Cons:

• ADAT is listed as an input, so it does not provide ADAT output expansion.
• Requires compatible external ADAT hardware for additional channels.

The SSL 12 stands out for its monitoring-oriented workflow rather than maximum built-in channel count. It is a compelling audio interface with ADAT expansion for recording environments where headphone mixes, talkback, and conversion quality matter.

Best All-Rounder – Scarlett 18i16 4th Gen

The Focusrite Scarlett 18i16 4th Gen is a flexible audio interface with ADAT expansion for producers who need substantial I/O in a compact USB-C setup. Its four mic preamps, eight line inputs, two Hi-Z inputs, MIDI, S/PDIF, and 18-in/16-out configuration suit larger recording and production workflows.

Best For: Producers building a versatile home or project studio with multiple microphones, instruments, and outboard connections.

Pros:

• 18 inputs and 16 outputs with ADAT, S/PDIF, and MIDI connectivity.
• Four preamps provide up to 69dB of gain, while two Hi-Z inputs support direct instrument recording.
• 24-bit/192kHz converters offer a 122dB dynamic range.
• Auto Gain, Clip Safe, Air modes, and a broad software bundle streamline recording.

Cons:

• Its extensive I/O may be more than a simple vocal or guitar setup requires.
• Requires an external power supply.

Choose the Scarlett 18i16 when expansion, routing flexibility, and a high channel count matter more than having the smallest possible interface. It is particularly well suited to a growing studio that may add ADAT equipment later.

Best for Mobile Creators – MAONO P2 Hybrid USB Interface

The MAONO P2 is a compact hybrid USB audio interface designed for creators who record and stream across computers, phones, tablets, or cameras. It is not a conventional multi-channel studio hub, but its dual USB connectivity and loopback features make it a practical choice for mobile content workflows; confirm your expansion needs before choosing it as an audio interface with ADAT expansion.

Best For: Podcasters, streamers, and musicians recording with two XLR sources while switching between desktop and mobile devices.

Pros:

• Dual USB ports support simultaneous computer and phone or iPad connections.
• Two XLR inputs offer up to 56dB of gain and 24-bit/192kHz recording.
• Loopback and ProStudio 2 support routing instruments, voice, backing tracks, and desktop audio.
• Independent mute and monitoring controls are useful for live streaming.

Cons:

• The supplied notes do not list ADAT connectivity or digital expansion.
• Its two-input design is less suitable for larger band or multi-microphone sessions.

The P2 makes the most sense when portability, mobile compatibility, and streaming control are your priorities. For adding external preamps or an eight-channel digital expander, look to an interface that specifically includes an ADAT optical input.

Best Premium Preamps – Clarett+ 4Pre

The Focusrite Clarett+ 4Pre is a refined audio interface with ADAT expansion for musicians and producers who want four high-quality preamps plus room to add compatible digital equipment. Its 18-in/8-out architecture, two JFET instrument inputs, and 24-bit/192kHz conversion make it a strong fit for detailed recording and mixing.

Best For: Home and project studios that prioritize low-noise preamps, instrument tone, and future eight-channel ADAT expansion.

Pros:

• Four Clarett+ preamps provide high headroom, low distortion, and ultra-low noise.
• ADAT optical input adds eight channels of digital expandability.
• Two dedicated JFET instrument inputs help preserve guitar character.
• Analogue Air circuitry, improved converters, and two headphone outputs support recording and mixing.

Cons:

• It has fewer outputs than the Scarlett 18i16.
• ADAT is an input-only expansion path according to the supplied specifications.

The Clarett+ 4Pre is a compelling choice when preamp quality and monitoring performance come first. Its ADAT input gives a growing studio a straightforward way to add eight compatible digital channels without replacing the main interface.

Best Overall – Focusrite Scarlett 16i16 4th Gen

The Focusrite Scarlett 16i16 is a flexible audio interface with ADAT expansion for producers who need substantial I/O in a compact desktop unit. It combines 16 inputs and 16 outputs with two mic preamps, Hi-Z inputs, line connections, S/PDIF, MIDI, and 24-bit/192kHz conversion.

Best For: Producers building versatile project studios with microphones, instruments, external hardware, and digital expansion.

Pros:

• Offers 16-in/16-out connectivity with ADAT, S/PDIF, and MIDI.
• Includes two 69dB-gain mic preamps, two Hi-Z inputs, and six line inputs.
• Provides 24-bit/192kHz conversion with a stated 122dB dynamic range.
• Auto Gain, Clip Safe, and Air modes support a streamlined recording workflow.

Cons:

• Its broad feature set may be more than a basic two-channel setup requires.
• It uses an external power supply rather than being bus-powered.

The Scarlett 16i16 is a strong all-purpose choice when you want room to connect several sources now and expand later. Its software bundle and practical gain-management tools add value for a growing production setup.

Best for Hybrid Studios – Fender Quantum LT 16

The Fender Quantum LT 16 is a high-I/O USB-C interface suited to hybrid studios that combine microphones, synthesizers, outboard equipment, and computer-based production. Its 16-in/8-out design includes eight mic preamps, 14 line inputs, loopback, MIDI, and standalone operating modes.

Best For: Hybrid producers, multi-mic recording, external hardware workflows, and streaming setups that benefit from flexible routing.

Pros:

• Provides eight MAX-HD mic preamps with up to +75dB of gain.
• Offers 14 line inputs for synths, mixers, and outboard gear.
• Includes DC-coupled outputs, MIDI I/O, loopback, and balanced monitoring outputs.
• Standalone Mixer Mode and Mic Pre Mode add flexibility beyond computer recording.

Cons:

• The supplied notes do not specify an ADAT optical expansion connection.
• Its 8-output configuration is less extensive than its 16-input count.

The Quantum LT 16 is compelling for users who prioritize many analog connections and advanced routing. However, shoppers specifically seeking an audio interface with ADAT expansion should verify the digital expansion requirements before choosing it.

Best Compact Expansion Pick – Focusrite Clarett+ 2Pre

The Focusrite Clarett+ 2Pre is a compact audio interface with ADAT expansion that starts with two high-quality mic preamps and adds eight channels of digital expandability. Its USB-C connection, JFET instrument inputs, four balanced outputs, and 24-bit/192kHz support make it a practical foundation for a smaller studio.

Best For: Solo producers and recording setups that need two local preamps now but may add an ADAT-compatible eight-channel unit later.

Pros:

• ADAT optical input provides eight channels of digital expansion.
• Two Clarett+ preamps offer high headroom, low distortion, and low noise.
• All-analogue Air circuitry is available on every preamp.
• USB-C bus power, JFET instrument inputs, and four balanced outputs suit compact rigs.

Cons:

• Only two built-in mic preamps are available before adding external ADAT equipment.
• USB-C bus power requires a 15W USB-C port.
• The smaller I/O layout may be limiting for larger analog-only sessions.

The Clarett+ 2Pre is a sensible choice when expansion matters but you do not need a large interface immediately. Its dedicated ADAT input lets you add compatible hardware while keeping the desktop unit relatively focused and portable.

How We Picked the Best Audio Interface with Adat Expansion

We focused on useful, scalable systems rather than simply counting analog inputs. The roundup includes dedicated ADAT expanders such as the Behringer ADA8200 and Arturia AudioFuse X8 IN, along with USB-C interfaces from Focusrite, SSL, MAONO, and Fender that can serve as the main recording hub. We considered channel count, preamp availability, ADAT connectivity, monitoring flexibility, computer compatibility, conversion needs, and how easily each model can fit into a growing studio.

ADAT typically carries up to eight channels at 44.1 or 48 kHz over one optical connection. At higher sample rates, available channel capacity may fall through SMUX, so confirm the interface and expander support the sample rate and routing you plan to use.

Quick Comparison

Best For	Recommended Type	Why It Stands Out
Adding eight microphone or line inputs	Behringer ADA8200 or Arturia AudioFuse X8 IN	Dedicated expansion without replacing a main interface
Flexible home-studio growth	Focusrite Scarlett 18i20, 18i16, or 16i16	Strong I/O options with USB-C connectivity and expandable workflows
Premium recording and monitoring	SSL 12 or Focusrite Clarett+ series	Higher-end features, preamps, and conversion-focused designs
Portable or hybrid recording	MAONO P2 Hybrid	Convenient computer, phone, and instrument-oriented connectivity

Key Buying Factors for an Audio Interface with Adat Expansion

Input Type and Channel Count

Decide whether you need microphone preamps, line inputs, or both. A dedicated eight-channel expander is useful when your existing interface already handles conversion and monitoring. If you are buying a main interface, prioritize the number of built-in preamps and total line I/O before relying on ADAT.

ADAT Compatibility and Sample Rate

Check that the optical connection is an ADAT input, output, or both, and verify the supported sample-rate modes. You also need compatible routing software and a host interface with an available optical port. Word-clock support can be useful in larger digital systems, but many compact setups can synchronize through ADAT.

Latency, Drivers, and Monitoring

Low-latency direct monitoring matters for vocals, instruments, and live tracking. Look for stable macOS and Windows drivers, clear mixer software, and enough headphone outputs for your sessions. USB-C describes the connector; it does not automatically guarantee the same bandwidth or feature set across models.

Expansion Beyond the First Upgrade

Plan for your likely next step. If you expect to record a full drum kit, ensemble, or multiple hardware instruments, choose a main interface with generous line outputs and flexible internal routing rather than only the minimum input count.

Who Should Buy Which Audio Interface with Adat Expansion?

Choose the Behringer or Arturia expander if your current interface works well but needs more analog inputs. Choose a Scarlett 16i16 or 18i16 for a balanced home-studio system, while the Scarlett 18i20 suits larger tracking sessions and more extensive routing. The Clarett+ 2Pre and 4Pre are better fits for buyers prioritizing premium preamps and conversion in a compact setup. SSL 12 is compelling when hands-on control and studio monitoring features matter. Fender Quantum LT targets higher-channel-count production, while the MAONO P2 Hybrid makes the most sense for creators who regularly move between a computer, phone, tablet, guitar, and microphones. Before purchasing, confirm optical I/O direction, included software, operating-system support, and whether the unit is intended as a host interface or an ADAT expander.