Built to deliver top-shelf sound in a rack-friendly and easy-to-use format for bands, project studio engineers, and panel podcasters who need mix-minus functionality when taking calls, the third-generation Focusrite Scarlett 18i20 18x20 USB-C audio/MIDI interface lets artists, engineers, and producers score pro-level tone with no learning curve.
Equally capable for tracking vocals and instruments, the eight improved Scarlett microphone preamps feature switchable phantom power for condenser mics, pads to prevent distortion on loud input signals, and a selectable-per-channel Air circuit, which adds clarity-enhancing brightness based on Focusrite's legendary ISA preamplifier.
The first two XLR-1/4" combo inputs can accept unbalanced instrument level from guitars, basses, synthesizers, and drum machines, or balanced line level from a mixing console or outboard preamps, while combo inputs 3-8 support mic- or line-level sources.
Unlocking the ability to record at standard CD quality or high-fidelity resolutions, the 24-bit / 192 kHz AD/DA converters ensure that signals are captured and reproduced with detail and accuracy. With four balanced 1/4" line/monitor outputs, six additional 1/4" line outs, two 1/4" stereo headphone jacks, and independent volume control of the two headphone outputs and the main/alt speaker outs, the Scarlett 18i20 can simultaneously feed multiple monitoring systems and outboard effects processors with ease.
The virtual loopback function on the Scarlett 18i20 empowers podcasters with an easy mix-minus setup for taking calls without the caller being distracted by a delayed audio return signal. Plus, the onboard talkback feature and built-in talkback mic streamline the task of communicating with your artists during recording sessions. You can even utilize your iPad, iPhone, or iPod touch to wirelessly control the Scarlett 18i20.
Utilize the dual ADAT optical input and output ports to interface external 8-channel AD/DA converters (available separately). Traditional 5-pin MIDI I/O is provided for seamless integration of MIDI equipment such as a keyboard or sound module, and S/PDIF coaxial ports allow proper routing of stereo digital gear.
With its AC powering for stable power in the studio, space-saving USB Type-C connection, and extensive software bundle including elementary versions of Ableton Live and Avid Pro Tools music production workstations, virtual instruments, plug-in effects, loops, and more, the Scarlett 18i20 gives you plenty of powerful tools to kick-start your inspiration. Just connect the Scarlett 18i20 to an AC power source via the supplied power cable, plug into your Mac/Windows computer via USB, fire up your preferred audio recording software, and let the creativity flow.
Dual ADAT optical outputs are also present, should you wish to send tracks digitally (skipping a D/A stage) to a headphone distribution system, an external converter, or a digital mixer.
Channels of I/O
Analog:8 Inputs / 10 OutputsDigital:10 Inputs / 10 Outputs
Maximum Sampling Rate
192 kHz / 24-Bit
Number of Microphone Inputs
8 Preamps
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input6x Combo XLR-1/4" TRS Balanced Mic/Line Input10x 1/4" TRS Balanced/Unbalanced Line/Monitor Output2x 1/4" TRS Unbalanced Headphone Output
Digital Audio I/O
1x RCA Coaxial S/PDIF Input1x RCA Coaxial S/PDIF Output1x TOSLINK Optical ADAT / S/PDIF Input (S/MUX Support)1x TOSLINK Optical ADAT Input (S/MUX Support)1x TOSLINK Optical ADAT / S/PDIF Output (S/MUX Support)1x TOSLINK Optical ADAT Output (S/MUX Support)
Host Connection
1x USB-C
OS Compatibility
macOS 10.12macOS 10.13macOS 10.14macOS 10.15macOS 11Windows 7 or Later
Power Requirements
AC Input
Built-In DSP
No
Built-In Microphone
Input Level Adjustment
8x Knob
Expansion Slots
Pad
-10 dB (Switchable per Channel)
Gain/Trim Range
Mic/Line Inputs:56 dB
High-Pass Filter
Solo/Mute
Mute per Master
Phantom Power
48 V, Selectable On/Off (on 8 Channels)
Host Connection Protocol
USB 2.0
USB (Non-Host)
Sync I/O
1x BNC Word Clock Output
Network I/O
MIDI I/O
1x DIN 5-Pin Input1x DIN 5-Pin Output
Frequency Response
20 Hz to 20 kHz ±0.1 dB
Maximum Input Level
Mic Inputs:+9 dBu (Min Gain)+16 dBu (Min Gain, with Pad)Hi-Z Inputs:+12.5 dBu (Min Gain)+14 dBu (Min Gain, with Pad)Line Inputs:+22 dBu (Min Gain)+29 dBu (Min Gain, with Pad)
Maximum Output Level
Line Outputs:+15.5 dBu (Balanced)Headphone Outputs:+7 dBu
Impedance
Mic Inputs:3 KilohmsHi-Z Inputs:1.5 MegohmsLine Inputs:60 KilohmsLine Outputs:430 OhmsHeadphone Outputs:< 1 Ohm
Dynamic Range
Mic Inputs:111 dBAHi-Z Inputs:110 dBALine Inputs:110.5 dBALine Outputs:108.5 dBAHeadphone Outputs:104 dBA
THD+N
Mic Inputs:< 0.0012%Hi-Z Inputs:< 0.03%Line Inputs:< 0.002%Line Outputs:< 0.002%Headphone Outputs:< 0.002%
EIN
Mic Inputs:-128 dB A-Weighted
Sample Rates
Up to 192 kHz (AD/DA Conversion)
Sample Rate Conversion
Bit Depths
Up to 24-Bit (AD/DA Conversion)
Sync Sources
ADAT, Internal, S/PDIF
Memory Card Slot
Mobile App Compatible
Yes: iPadOS Only
Mobile Device Compatibility
Required Hardware
Available USB 2.0 PortUSB Cable (Included)
Internet Connection
Required for Software/Driver Download
AC Input Power
100 to 240 VAC, 50 / 60 Hz
Power Consumption
30 W
Rackmount Size
1 RU (with Included Hardware)
Dimensions
19 x 10.23 x 1.83" / 48.3 x 25.98 x 4.65 cm
Weight
7.2 lb / 3.3 kg
In the Box:
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