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Focusrite

Focusrite Scarlett 18i20 4th Gen USB Audio Interface, for Multitrack Recording, Music Production and Podcasting — High-Fidelity, Studio Quality Recording, and All the Software You Need to Record

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jul 19
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Style: Scarlett 18i20


Configuration: 4th Gen


Features

  • The engineers interface: Scarlett 18i20 features 18 inputs and 20 outputs, including eight mic preamps, Hi-Z, line inputs, ADAT, S/PDIF, MIDI I/O, and Word Clock
  • Capture everything: The 4th Generation preamps provide 69dB of gain, with two Hi-Z inputs and eight line inputs for versatile connectivity
  • Audio quality beyond its class: Equipped with 24-bit, 192kHz converters from our flapship RedNet range, offering a 122dB dynamic range for detailed recordings
  • Big-studio sound: Air modes add presence and harmonic drive to your sound, replicating the character of classic studio consoles for vocals and instruments
  • Professional workflow tools: Auto Gain sets optimal levels quickly, while Clip Safe prevents clipping by monitoring and adjusting gain in real-time
  • Everything in the box: Includes Pro Tools Intro+, Ableton Live Lite, Cubase LE, and Hitmaker Expansion: a suite of essential effects, powerful software instruments, and easy-to-use mastering tools.

Description

Scarlett 18i20 is the industry-leading USB audio interface for project studios, with pro-grade converters taken directly from Focusrite’s flagship RedNet range. It’s ideal for tracking; the eight 4th Gen mic preamps have an impressive 69dB of gain, capable of capturing the most dynamic performances, with Auto Gain and Clip Safe modes taking care of levels so you can focus on the take. Scarlett 18i20 is also the perfect hub to integrate your DAW and hardware with more than enough analogue and digital I/O to connect a huge number of external instruments, processors, and effects, and manage complex routing with incredible ease via Focusrite Control 2 software.

Brand: Focusrite


Compatible Devices: Microphone, Instrument, Personal Computer, Headphones, Studio Monitors


Supported Software: All audio recording software


Connectivity Technology: USB


Number of Channels: 18


Compatible Devices: Microphone, Instrument, Personal Computer, Headphones, Studio Monitors


Supported Software: All audio recording software


Connectivity Technology: USB


Number of Channels: 18


Frequency Response: 35 KHz


Operating System: Mac OS, Windows OS, iOS


Audio Input: USB


Maximum Sample Rate: 192 KHz


Item Dimensions D x W x H: 17.37"D x 10.21"W x 1.83"H


Item Weight: 8 Pounds


Brand Name: Focusrite


Manufacturer: Focusrite


UPC: 815301001522


Global Trade Identification Number: 22


Manufacturer Part Number:


Model Number: AMS-SCARLETT-18I20-4G


Warranty Description: 3 year manufacturer.


Included Components: Scarlett 18i20 4th Gen, IEC Cable, USB Cable


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jul 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Excellent piece of gear that checks all the boxes for my needs Excellent piece of gear that checks all the boxes for my needs
Style: Scarlett 18i20 Configuration: 4th Gen
Review Image by super_mom
This product review is for the Focusrite Scarlett 18i20 4th generation USB audio interface sold and shipped by Amazon. The product arrived on time and in good condition as expected. The internet is chock full of in-depth reviews, appraisals and head-to-head challenges against other top audio manufacturers regarding all of the features that Focusrite has packed in to this versatile 1U rackmount device. From the quiet, responsive, clear preamps to the more than adequate converters and signal routing capabilities, I would agree with the general consensus that the 18i20 is a quality unit and more than up to the tasks it was designed for. While I haven’t had this unit long enough to test every function, I can say that the initial hardware setup was a breeze, as was the software configuration on an older PC running Windows 11. Focusrite has clearly spent significant amounts of time and resources designing a pleasant OOB experience. The included production software package is on par with other interface manufacturers at this price point and probably adequate for most to get started with, at least at an entry level. Of note, I particularly enjoyed the Relab LX480 Essentials reverb plugin. I expect that this unit will last many years, as Focusrite did not cut any corners in overall build quality. Everything feels solid. Based on my first Focusrite product; a Scarlett 2i2 first gen purchased in 2013, which is still fully functional, I would hope to get at least 10 years out of this one. Bottom line: I would recommend this to anyone looking to update their setup from a limited number of ins/outs to 8 onboard preamps, ADAT expandability and many, many outputs for less than $1000. The Focusrite Scarlet 18i20 falls well within the price to features ratio I was looking for. ... show more
Reviewed in the United States on May 13, 2026 Reviewed in the United States on May 13, 2026 by super_mom
    • Excellent quality multi-input sound card
Style: Scarlett 16i16 Configuration: 4th Gen
I bought this to use as a multi-input sound card for Windows 10. It works very nicely and the sound quality is great. An important note is that you may need to enable the extra inputs through the desktop app. After installation, Windows only showed two inputs. After some research I found there is a way by right-clicking in the tray icon and enabling more sources. Otherwise it really works nicely, is built very well, and allows for multitrack recording without much hassle. ... show more
Reviewed in the United States on April 26, 2026 by J. Preece
    • Great product
Style: Scarlett 18i20 Configuration: 4th Gen
I upgraded from the Saffire Pro 40 and so far after a couple months i have not experienced any issues with it. It does take some time to get used to the redesigned mixer controlls as it is completely different as the Pro 40, but other then that it is a great product. Reasonably easy to use for someone who used similar products, for someone who is new to recording and equipment, it may take a little longer to figure everything out. It came with a bunch of plug in's and Ableton DAW but you can use almost any other DAW, i use Reaper and MixPad and they work fine. ... show more
Reviewed in the United States on May 28, 2025 by Oscar K.
    • Better than the Apollo?
Style: Scarlett 16i16 Configuration: 4th Gen
I love this freaking thing dude, has overall given many more paths to explore creatively just by simply having more inputs and outs, instantly noticed a difference in productivity, the upgraded appearance is a plus as well, coming from a gen 3 2i2, I was looking for something to improve functionality and allow me to expand my studio, this has done just that, I would recommend this over an Apollo any day, UAD software can be buggy when dealing with multiple systems, focusrite control is very intuitive and easy to use across the board, not to mention artists vocals sound crisp and clear, smooth harmonic drivers sound beautiful when mixed and gain staged correctly. Overall I’d say this product is worth every single penny and more ... show more
Reviewed in the United States on August 3, 2025 by Evan
    • Home studio gem.
Style: Scarlett 18i16 Configuration: 4th Gen
Wonderful piece of gear. Very versatile.
Reviewed in the United States on May 3, 2026 by Cliff Witherspoon
    • works, hooked to mic, keyboard, WiiM Pro, Mac Mini = all work
Style: Scarlett 16i16 Configuration: 4th Gen
Extremely great! I am using it with Mac mini and a Roland keyboard as well as a Shure mic. All connect and work flawlessly. Also have it plugged into a WiiM Pro that allows me to listen to wireless music from my iPhone & iPad through my studio speakers. This thing rocks! works flawlessly with Logic, Roland Keyboard both MIDI and sound from keyboard, mini computer. No complaints, only =) ... show more
Reviewed in the United States on December 4, 2025 by 78 Muses
    • Excellent for number of inputs given the price
Style: Scarlett 16i16 Configuration: 4th Gen
Easy to set up and works as advertised and as low noise as anything else I've owned. Has a lot of nice features I didn't know that I wanted: individual inputs and be isolated and recorded from, sound after being run through a DAW can be routed back and played from different headphone jacks. Software works well on MacOS 15. I would have preferred more hardware control options for controlling the inputs in the back ... show more
Reviewed in the United States on December 5, 2025 by S
    • Poor customer service/Product defective
Style: Scarlett 16i16 Configuration: 4th Gen
I purchased this product on sale from Amazon for $339.99. The on and off switch did not work. I contacted Focusrite support but they did not contact me back. Amazon did not offer a replacement but only a return. I returned it and was going to buy a replacement but the price is now $399.99. I spoke with a customer service rep at Amazon and she confirmed only a refund, not an exchange. BAIT AND SWITCH. ... show more
Reviewed in the United States on February 25, 2026 by leslie nagby

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