Focusrite Scarlett 18i8 18×8 USB Audio Interface -3rd Generation

The third-generation Focusrite Scarlett 18i8 is an 18×8 USB audio interface offering high-performance hardware, input expandability, customizable mic tone, and a creative software bundle.

Key Features
  • For Producers & Small Bands
  • High-Performance 24-Bit / 192 kHz AD/DA
  • 4 Scarlett Preamps w/ XLR-1/4″ Inputs
  • 4 1/4″ Line Ins, 8-Channel ADAT Input

Call for Price

Ideal for podcasters who need mix-minus functionality when taking calls, and perfect for producers and small bands, the third-generation Focusrite Scarlett 18i8 is an 18×8 USB audio interface offering high-performance hardware, input expandability, customizable mic tone, and a creative software bundle. The four improved Scarlett microphone preamps feature switchable phantom power, input pads, and selectable Air circuits, which add 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 3-4 support mic- or line-level sources.

The rear panel sports four additional fixed-level 1/4″ inputs to accommodate more line-level devices, and an ADAT optical input for use with an external 8-channel A/D converter. The Scarlett 18i8’s 24-bit / 192 kHz converters ensure that signals are captured and reproduced with detail and clarity. With four balanced 1/4″ line/monitor outputs, two 1/4″ stereo headphone jacks, and independent control of the headphone and speaker volume settings, the Scarlett 18i8 can simultaneously feed multiple monitoring systems and outboard effects processors. The virtual loopback function empowers podcasters with an easy mix-minus setup for taking calls without the caller being distracted by a delayed audio return signal. 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. The Scarlett 18i8 connects to your Mac or Windows computer via USB and is powered by the included external power supply. The extensive software bundle includes music production software, virtual instruments, plug-in effects, loops, and more—plenty of tools to kick-start your inspiration.

 

Notable Features

  • High-performance converters operate at up to 24-bit / 192 kHz resolution
  • Four XLR-1/4″ combo inputs with upgraded third-generation Scarlett mic preamps
  • Switchable Air setting reproduces the Air effect of Focusrite’s original ISA mic preamp for vocal recordings with enhanced brightness and openness
  • Two high-impedance, high-headroom 1/4″ instrument inputs enable distortion-free recording of your guitar and bass
  • Front-panel 1/4″ inputs 1-2 may be switched to accept unbalanced instrument level or balanced line level, while front-panel 1/4″ inputs 3-4 accept line level
  • Independent gain knobs with gain halo metering make it easy to set input levels for channels 1-4
  • Selectable pads for inputs 1-4 attenuate the input signal to inhibit distortion
  • 1/4″ inputs 5-8 on the rear panel accept balanced line-level signal without gain control
  • One pair of virtual loopback inputs allows you to capture a stereo feed of any combination of hardware input and software playback channels, making podcasting, live streaming, and sampling tasks easier
  • Four balanced 1/4″ TRS monitor outputs with anti-thump technology
  • Two stereo 1/4″ headphone outputs
  • Independent volume controls for headphone and monitor outputs
  • Main/alt speaker switching via software
  • Traditional 5-pin MIDI I/O provides straightforward connectivity for a MIDI keyboard, synthesizer, or sound module
  • S/PDIF coaxial I/O assures simple integration of other digital equipment such as a DJ mixer, media player, or external converter
  • Route eight channels from an external analog-to-digital converter (available separately) to the ADAT optical input
  • Durable housing is compact, lightweight, and portable
  • Connects via USB to your computer
  • Powered via included power supply

Bundled Software

  • Ableton Live Lite music production software
  • Pro Tools | First Focusrite Creative Pack
  • Free 3-month Splice Sounds subscription with new Splice accounts
  • Focusrite Red 2 & Red 3 Plug-In Suite
  • A choice of one of four XLN Audio Addictive Keys virtual instruments
  • Softube Time & Tone Bundle
  • Access to the Focusrite Plug-In Collective
Brand

Channels of I/O

Analog:
8 Inputs / 6 Outputs at 192 kHz
Digital:
10 Inputs / 2 Outputs

Max Sample Rate/Resolution

192 kHz / 24-Bit

Display and Indicators

4 x LEDs (Input Level)
2 x LEDs (+48V)
2 x LEDs (Input Selection)
4 x LEDs (Pad)
1 x LED (Host Connection)
1 x LED (MIDI)
1 x LED (Output Selection)

Host Connection

1 x USB Type-C (USB 2.0)

Analog I/O

2 x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input
2 x Combo XLR-1/4" TRS Balanced Mic/Line Input
4 x 1/4" TRS Balanced Line Input
4 x 1/4" TRS Balanced Line Output
2 x 1/4" TRS Unbalanced Headphone Output

Phantom Power

+48 V, Selectable On/Off (on 4 Channels)

Digital I/O

1 x RCA Coaxial / S/PDIF Input
1 x RCA Coaxial / S/PDIF Output
1 x TOSLINK / ADAT Input

MIDI I/O

1 x 5-Pin MIDI In
1 x 5-Pin MIDI Out

Memory Card Slot

None

Frequency Response

20 Hz to 20 kHz ±0.1 dB

Gain Range

Mic/Line/Hi-Z Inputs:
56 dB

Max Input Level

Mic Inputs:
+9 dBu (Min Gain)
Hi-Z Inputs:
+12.5 dBu (Min Gain)
Line Inputs:
+22 dBu (Min Gain)

Max Output Level

Line Outputs:
+15.5 dBu at 0 dBFS (Balanced)
Headphone Outputs:
+7 dBu

Dynamic Range

Mic Inputs:
111 dBA
Hi-Z Inputs:
110 dBA
Line Inputs:
110.5 dBA
Line Outputs:
108 dBA
Headphone Outputs:
104 dBA

Impedance

Mic Inputs:
3 Kilohms
Hi-Z Inputs:
1.5 Megohms
Line Inputs:
60 Kilohms
Line Outputs:
430 Ohms
Headphone Outputs:
<1 Ohm

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)

Bit Depth

Up to 24-Bit (AD/DA Conversion)

Sync Sources

ADAT, Internal, S/PDIF

OS Compatibility

macOS
Windows

Required Hardware

Available USB 2.0 Port
USB Cable (Included)

Internet Connection

Required for Software/Driver Download

Power Requirements

AC/DC Power Adapter (Included)

AC/DC Power Adapter

12 VDC at 1 A, Center-Positive (Included)

Anti-Theft Features

Kensington Security Slot

Dimensions

9.49 x 6.28 x 2.4" / 24.1 x 15.95 x 6.1 cm

Weight

2.9 lb / 1.3 kg (Without Accessories)
3.5 lb / 1.6 kg (With Accessories)

Package Weight

4.7 lb

Box Dimensions (LxWxH)

12.6 x 10.5 x 3.4"

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  • Focusrite Scarlett 18i8 18x8 USB Audio Interface (3rd Generation)
  • USB Type-C to USB Type-A Cable
  • Power Supply