Focusrite Scarlett 18i20

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$749.99 Price Tier: High-end

4.5 (134)

2 Critic Reviews

12 Reviews

This product is Vintage or Discontinued

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Focusrite Scarlett 18i20 2nd Gen

$262.14

4.5 (27)

Find out who is using Focusrite Scarlett 18i20

12 community setups

54 wishlisted

388 saved

Page last updated Jul 02, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated July 2, 2026.

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Price

5.0 (25)

$749.99 1 available New

$220.26 2 available Used

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Average Price: $573

High-end/Boutique

$150

$501+

Price Tier

In the Audio Interfaces category, Focusrite Scarlett 18i20 is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

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Description

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Tackle your next studio session with the Focusrite Scarlett 18i20, the ultimate audio interface for musicians and producers who demand versatility and clarity. This robust USB interface is designed to seamlessly integrate with any project studio, offering expansive connectivity options that empower creativity. With two front-panel combination inputs, you have the flexibility to switch between mic preamps and Hi-Z instrument inputs, ensuring pristine sound capture every time. Meanwhile, six additional mic/line inputs and eight line outputs, along with two dedicated monitor outputs, give you the freedom to manage complex recording setups.

Beyond its analog prowess, the Scarlett 18i20 excels in digital connectivity. It features ADAT optical I/O, allowing for seamless expansion with digital equipment, alongside stereo SPIDF. The interface also includes dedicated MIDI I/O for connecting to your favorite keyboards and controllers, ensuring all your gear stays in perfect harmony. And with Wordclock sync, you can maintain tight timing across all your digital devices.

The Scarlett 18i20's intuitive design supports smooth workflow management, highlighted by front-panel LED-based input level monitoring that allows you to keep an eye on levels without interruption. This interface is not just about connectivity; it's about delivering high-quality audio performance with professional touches that cater to both budding and seasoned artists.

Key Features:

18-in/20-out USB audio interface
Two combination inputs for mic preamps or Hi-Z instruments
Six additional mic/line inputs
Eight line outputs and two dedicated monitor outputs
ADAT optical I/O for digital expansion
Stereo SPIDF, MIDI I/O, and Wordclock sync
Front-panel LED input level monitoring

Product specs

Brand	Focusrite
Model	Scarlett 18i20 USB 2.0 Audio Interface
Finish	Red / Black
Year	2013 - 2016
Made In	United Kingdom
Categories	Audio Interfaces
Bit Depth	24-bit
Bus-Powered	No
Compatibility	Windows, macOS
Computer Connectivity	USB
Digital Input Format	ADAT/Optical, S/PIDF
Digital Output Format	ADAT/Optical, S/PIDF
Electronics	Analog, Digital, Solid State
Format	19-inch Rackmount
Number of Analog Inputs	8
Number of Analog Outputs	10
Number of Channels	38
Number of Digital Inputs	10
Number of Digital Outputs	10
Number of Headphone Outputs	2
Number of MIDI Inputs	1
Number of MIDI Outputs	1
Number of Mic Preamps	8
Sample Rate	192 khz
Simultaneous I/O	18 x 20

FAQs

How many simultaneous inputs and outputs does the Focusrite Scarlett 18i20 support?: The Focusrite Scarlett 18i20 supports 18 simultaneous inputs and 20 outputs, making it ideal for complex recording setups and larger studio environments.
Is the Focusrite Scarlett 18i20 compatible with both Windows and macOS?: Yes, the Focusrite Scarlett 18i20 is compatible with both Windows and macOS, ensuring flexibility across different computer systems.
What kind of preamps does the Focusrite Scarlett 18i20 feature?: The Focusrite Scarlett 18i20 is equipped with eight ultra-low-noise mic preamps, providing detailed and clear audio capture for various recording applications.
Does the Focusrite Scarlett 18i20 require an external power source?: Yes, the Focusrite Scarlett 18i20 is not bus-powered and requires an external power supply to operate.
Can I use the Focusrite Scarlett 18i20 in standalone mode without a computer?: Yes, the Focusrite Scarlett 18i20 can be used in standalone mode, allowing audio to pass through the interface even when it is not connected to a computer.
What digital input and output formats are supported by the Scarlett 18i20?: The Focusrite Scarlett 18i20 supports ADAT/Optical and S/PIDF digital input and output formats, providing versatile connectivity options for digital audio equipment.

Videos

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Focusrite

Focusrite // Scarlett 18i20 3rd Gen - Overview feat. Tom C. Walker

Focusrite

Sonic LAB: Focusrite Scarlett 3rd Gen 18i20 USB Audio i/f

sonicstate

Focusrite Scarlett 18i20 3rd Gen – USB Audio Interface Review

Julian Krause

Focusrite Scarlett 2i2 and 18i20 Audio Interfaces Review

Sweetwater

REVIEW: Focusrite Scarlett 18i20

Matt Ingram

Focusrite Scarlett 18i20 3rd Gen REVIEW

Zach Wirchak

Scarlett 18i20 3rd Gen - Quick Start Up Guide - How To Use

Virtual Verghini

Focusrite 18i20 3rd Gen - 1 Year Later! Still worth it?

Zach Wirchak

Focusrite Scarlett 3rd Gen 8i6, 18i8 & 18i20: Overview, Features and Specs

Focusrite

Reviews

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PROS

Solid build and great sound quality
Easy to use and set up, minimal drivers/software required
Versatile I/O options with 8 XLR/TRS inputs and 10 outputs
ADAT and SPDIF for easy expansion
Good value for mid-level pro gear
Transparent preamps enhance recording clarity
Reliable and steady performance over time
Flexible routing software once learned
Includes powerful headphone amps for monitoring
Gifts users with useful plug-ins

CONS

Software can be cumbersome to learn
Volume knobs hard to read due to color blending
Some users find the unit sometimes unstable
Limited to USB2 connection, which might be outdated for some
ScarlettMixControl software has quirks

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Focusrite Scarlett 18i20.

Features and functionality

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The 18i20 includes 2 ADAT inputs/outputs, allowing expansion up to 18 channels with additional hardware like the Behringer ADA8200.
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Scarlett 2nd Gen can be used in standalone mode as additional preamps, extending its utility beyond serving as the main interface.
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Setup and maintenance

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Owners recommend using an ADAT cable to connect devices like the Octo Pre for expanding input capabilities, especially when recording drums.
Source

User experience

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Users transitioning from fewer mics to a full 8-mic drum setup find the 18i20's expandability crucial for growth.
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Owners report that Scarlett 2nd Gen units have been reliable for nearly a decade, maintaining performance without issues.
Source

Value and pricing

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Purchasing used from platforms like Reverb can provide significant savings, especially on older generations, without compromising on performance.
Source
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A user acquired a Scarlett 18i20 for $100, highlighting potential savings through personal networks or second-hand markets.
Source

Comparisons

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Preamps in the 18i20 are considered solid for the price, with significant upgrades only noticeable when spending on high-end preamps like Neve.
Source

Use cases and applications

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The 18i20's multiple ins and outs are ideal for recording various instruments, including drums, guitars, bass, and synths, making it versatile for home studios.
Source

Software and compatibility

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Scarlett 2nd Gen interfaces are USB class compliant, ensuring plug-and-play functionality on macOS, even with M2 and M1 Mac systems.
Source

Critic Reviews

Real-World Review: Focusrite Scarlett 18i20 3rd Gen Interface

mixonline.com

The Focusrite Scarlett 18i20 3rd Gen Interface shines with its robust feature set, offering 18 inputs and 20 outputs that suit a variety of studio setups. Its rack-mountable design, intuitive control layout, and added "Air" feature for enhanced audio brightness are commendable. However, the review notes a potential issue with the USB-C cable connection and minor limitations with phantom power control. Despite these small drawbacks, the unit delivers clean, noise-free sound across various applications, making it a strong choice for budget-conscious producers looking to set up a capable studio without overspending.

positive

Full Review

Focusrite Scarlett 18i20 audio interface review | Popular Science

popsci.com

The Focusrite Scarlett 18i20 punches above its weight, offering premium features at a midrange price. Its sleek design and expandable options make it a great choice for burgeoning home studios. While its control software can be clunky and it lacks separate converters for headphone outputs, the 18i20's high-quality preamps and Air setting offer impressive recording fidelity. It's not without its compromises, such as sacrificing line outputs for headphones, but these are manageable for most small studios. Overall, it's a cost-effective, feature-rich choice for musicians seeking a capable and affordable interface.

positive

Full Review

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4.5 out of 5

Based on 12 Reviews and 134 Ratings

5 star

4 star

3 star

2 star

1 star

gearguy99

173

over 1 year ago

everyone has one and you should too.

Very basic, slight learning curve (very slight). Audios fine, great for a budget interface. (used on “Not So Kino”)

Roles:

Guitarist

Genres:

Rock Pop Garage rock

ibizzet

213

over 8 years ago

Won't need to upgrade for a long time.

With 8 XLR/TRS inputs, 10 outputs, ADAT, SPDIF, and two powerful headphone amps, I know I will have the 18i20 for a long time.

Although still using USB2, the latency has never been a problem. The reason I bought this was to have 8 inputs in case I ever needed it, and have had to use 6 at once for a podcast I recorded with my friends. With ADAT and SPDIF, I know I can easily add an additional 8 preamps if I ever need it. And with 10 outputs, if I ever decide to mix in 5.1 surround sound, I know I can.

This interface is my baby and will grow up with me as I grow as a musician.

Roles:

Music Producer DJ Audio Engineer

Genres:

Electronic Dubstep Trip hop

tw01

114

about 11 years ago

Very Good

An excellent mid range interface that represents very good value for money. Nicely transparent pres combined with the option of ADAT expansion make it perfect for the home studio. My only issue is with the volume knobs, as the tiny little indicator bump on them are the same colour as the knobs themselves making it very hard to see what volume the unit is at.

Twin headphone out is a nice bonus, and the routing software, although daunting at first, is actually incredibly flexible and a breeze to get you head around after a bit of experimentation.

rene9399

117

about 9 years ago

Great interface.

This is a great interface for someone who is starting with recording music and needs a good quantity of inputs with the possibility of expanding through ADAT. It is easy to use and reliable, it has great sound to it and a good build quality.

aliceinthunderland

almost 10 years ago

WOW. I can't find anything I hate about this interface.

Got to be the Best Value for Money Interface going around. Plenty enough in/out options for me and great quality, transparent sound. USB connection, not firewire, so a better option for more people. Sweet pre amps if you aren't one of the lucky people who own several separate dedicated units.

mildfrustration

201

almost 12 years ago

GREAT QUALITY!

The product is such a great addition for any musician wanting to record their own project. It is easy to hook up, no drivers, no software required. Once I hooked this up to my Mac, I was able to get recording within minutes. The Preamps work really nice as well, eliminating most signal noise, any warmth or effects, you would have to do yourself. GREAT PRODUCT!