Back Panel In Depth; Usb Connections; Midi; Speaker Outputs - Focusrite Scarlett 4i4 4th Gen User Manual

Back Panel In Depth

This section covers all the features on your Scarlett 4i4's back panel, what they do, how you
might use them and how they work in Focusrite Control 2.

USB Connections

USB Port
The USB Type-C port labelled USB is to connect your Scarlett to your computer.
The connection to your computer provides USB power, two-way audio communication, and a
connection to Focusrite Control 2.
5V DC Port
The Scarlett 4i4 consumes a large amount of power. In some high-power situations, such as
playing headphones at a high volume, some computers' USB ports may not be able to provide
enough power and your Scarlett 4i4 may disconnect or the USB icon
If you experience this behaviour, we recommend you use a mains PSU to power your Scarlett via
the 5V DC port.
The USB Icon Flashes Red
If the USB icon flashes red this means your Scarlett 4i4 isn't getting enough power.
To resolve this issue:
1. Disconnect both USB cables. In this order: connect the power supply to the
Power USB port then connect the USB cable to the USB port on the Scarlett.
2. Make sure you are using the original USB power supply.
3. Test a different USB port on your computer, make sure you're connecting
directly to your computer and not via a USB hub.
Scarlett 4i4 4th Gen User Guide

MIDI

The Scarlett 4i4 MIDI In and Out ports allow you to use your Scarlett as a USB MIDI interface.
MIDI IN receives MIDI signals from keyboards or controllers; MIDI OUT sends MIDI information to
Synths, Drum machines or MIDI-controllable equipment.
The MIDI IO doesn't require any setup for your to use your Scarlett 4i4 as a USB MIDI interface,
however, to use MIDI you must install and open Focusrite Control 2. The Scarlett 4i4's MIDI ports
appear in your MIDI-enabled software and you can either send or receive MIDI data between your
computer and MIDI hardware via the Scarlett's 5-pin DIN MIDI ports.
flashes red.

Speaker Outputs

Outputs L and R are line-level outputs to connect your Scarlett 4i4 to an amplifier or active
monitors. The outputs are balanced 1/4" TRS jack outputs, you can use them with either
unbalanced TS or balanced TRS jack cables.
Your Scarlett 4i4's front panel Output dial controls the level sent to Outputs L and R.

Line Outputs

Line Outputs 3-4 have identical electrical characteristics to the Monitor line Outputs 1 to 2 but are
not controlled by the Output control.
You can set the signals available at these outputs using Focusrite Control 2, and use the outputs
to drive additional speakers in a multichannel monitoring system, such as a subwoofer or to send
signals to outboard effects processors.
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Important
When you first receive your Scarlett 4i4 MIDI is disabled because it is in Easy Start mode.
To enable MIDI, install and open Focusrite Control 2.
Note
The MIDI Out port on your Scarlett 4i4 cannot function as a MIDI Thru port.