Red represents the pinnacle of Focusrite’s interface range. Red 4Pre includes four of Focusrite’s digitally-controlled, 'Air' enabled, Red Evolution mic preamps. Thunderbolt 2 connectivity and dual mini-DigiLink ports bring you the best of both Core Audio and Pro Tools|HD workflows, with easy switching between Pro Tools | HD and any Thunderbolt-connected DAW. Featuring 'parallel path summing' conversion and beautiful yet robust design, the Red 4Pre interface is the perfect balance of form and function, delivering the sound quality and versatility engineers and producers expect from Focusrite.

Versatile connectivity

Focusrite's 58-in/64-out Red 4Pre includes Thunderbolt 2 connectivity for our lowest round-trip latency, in whatever DAW you use, enabling you to track and overdub with your preferred plug-ins and effects in real time, simplifying your workflow. Drop the Red 4Pre immediately, directly and seamlessly into any Pro Tools | HD system, or use it with existing Avid® interfaces, thanks to its twin DigiLink™ connectors. Dual Thunderbolt 2 ports allow daisy-chaining of additional components such as hard drives and displays. Plus the Red 4Pre is network audio enabled right out of the box, with dual Ethernet ports for Dante audio-over-IP networking, letting you expand your recording capability over Ethernet for up to 64 additional channels anywhere on your network, with low latency – and lower cost. Additional Red or other Dante-compatible components can be connected to the Ethernet ports of the Red 4Pre to provide additional channels irrespective of the interface used to drive the Red 4Pre.

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Simple switching between DAWs

Switch between Pro Tools | HD and any DAW connected to the Thunderbolt interface using the Host Mode setting in the included Focusrite Control software. For example, you can switch quickly and easily between Pro Tools | HD and Ableton, Logic or Pro Tools software - just keep both connected at all times and make the switch whenever you need.

Red Evolution Air-enabled Microphone Preamplifiers

The Red Evolution mic pres in the Red 4Pre deliver a clear and honest audio performance with –129 dB EIN and 63dB of gain that allows plenty of room to bring your own sound to life with your choice of external processing. The mic pres can be controlled digitally, for adjusting/recalling settings and stereo linking via Focusrite Control software. They also include our unique ‘Air’ effect, recreating the sound of the transformer-based mic preamps in the ISA range. When ‘Air’ is enabled, the microphone impedance is set to 2.1kΩ and the frequency response curve is given a subtle mid-high boost – all in the analogue domain.

Learn more about Air:

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Our best converter performance

We’ve been building mastering-quality digital audio converters for decades, and the converters you’ll encounter in the Red 4Pre are the best we’ve ever made, employing a 'parallel path summing' configuration to lower the noise floor. We’ve selected high-performance, precision conversion chips and maximised sound quality through premium component selection, advanced design and optimised board layout. Red 4Pre's converter design strikes a precise balance between multiple factors – including dynamic range, distortion, noise floor and conversion latency – for the optimal overall sound. With 24-bit/192kHz sampling capability and 118dB(A-D)/121dB (D-A) dynamic range, it is ideal for high-resolution audio. The Red 4Pre delivers ≤0.0009% THD+Noise and a frequency response flat from 20Hz to 35kHz ±0.25 dB or better - and when we quote a specification, you can rest assured it’s what the Red 4Pre will actually give you on a real session, not a purely theoretical figure pulled from the converter chip’s data sheet.

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Our lowest round-trip latency

Low latency is a specific Focusrite design goal. Red 4Pre's latency is so low that you can track with your preferred plug-ins and record virtual instruments in real time. This low latency environment simplifies your workflow, allowing you to run a single mix on your DAW for both overdubbing and mixing, with your plug-ins in place, all the time.

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Expansion done right

Connect up to 64 additional channels to the Red 4Pre via Ethernet-based Dante networking - a simple, single connection carrying both audio and built-in clocking. Whether the Red 4Pre is connected to the computer via Thunderbolt, DigiLink or Dante, simply connect units such as two RedNet A16R (32 channels of analogue I/O), four RedNet MP8R (32 channels of RedNet mic pre), or other Dante-enabled products via Ethernet as desired. Place mic preamps where the music is, and outputs where the sound needs to go – wherever there's an Ethernet connection. Unlike daisy-chaining via Thunderbolt, Dante lets you run additional channels over a greater distance, with low latency and lower cost, without wasting money on technology or connectivity that will not be used. And it will only get easier: look out for future enhancements offering complete plug and play Ethernet expansion functionality.

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Need more than 8x8 analogue line I/O?

Red 16Line features 16 line inputs on D-sub, coupled with 16 line outputs and two main monitor outputs.

Software included:

Red 4Pre includes the new Focusrite Control software, providing a straightforward and intuitive way to set up mixes and monitoring - and more! Control the mic pres – recall settings, assign stereo pairs, adjust gain and enable features such as highpass filtering and phantom power. Easily switch between Pro Tools | HD and any Thunderbolt-connected DAW with the Host Mode setting. In addition, Red 4Pre is packaged with Softube's Time and Tone Bundle – a unique plug-in pack including four of Softube’s professional quality plug-ins: Drawmer S73 Intelligent Master Processor, TSAR-1R Reverb, Tube Delay and Saturation Knob. Also in the box is the Focusrite Red Plug-in Suite, which accurately models Focusrite’s classic Red range 2 and 3 equaliser and compressor hardware.

User Guides

Sometimes you just need to see how adding new equipment to your setup is going to work. Find out just how easy it is to get the benefits of Red 4Pre, along with some example setup examples and diagrams here.

Download Red 4Pre user guide

Getting Started

Tech Spec

Supported Sample Rates

44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

System Requirements

OS Compatibility

Please visit our OS Compatibility Checker for more information on supported operating systems.

Simultaneous inputs & outputs

58 x 64 (not including 2 x virtual loopback inputs in Thunderbolt Mode)

Eight channels of analogue-to-digital conversion

2 High impedance instrument inputs
4 Red Evolution mic preamps
8 line inputs (D-Sub)

Fourteen channels of digital-to-analogue conversion

2 main monitor outputs (TRS)
8 line outputs (D-Sub)
2 stereo headphone outputs

Eighteen channels of digital I/O

16 channels of ADAT I/O via optical connector supports SMUX and SMUXII for operation up to 192 kHz
2 channels of S/PDIF I/O

Dante expansion

32 input channels
32 output channels
Compatible via Dante Virtual Soundcard (Not Included)
Advanced Mode allows audio routing of any 3rd party Dante device to and from the Red 4Pre anywhere on your network
Auto-routing mode not currently implemented

Connectivity

Dual Thunderbolt™ 2 ports (2m Thunderbolt Cable included in the box)
Dual Digilink for connecting to Pro Tools | HD

Microphone Preamps

4 Red Evolution Mic Preamps
'AIR' Mode
+48V Phantom Power
Switchable HPF
Phase Reverse
Stereo linking
All features controllable from front panel of Red 4Pre and from within Focusrite Control

Microphone Inputs

Connector Type

XLR Female, pin 2 positive

Phantom Power

+48V Phantom Power, Switchable per mic input

Frequency Response

20 Hz - 35 kHz +/-0.2 dB

Signal to Noise Ratio

118 dB (A-weighted)

Dynamic Range

118 dB (A-weighted)

THD+N

0.0009%

Noise EIN

–129 dBu (A-Weighted)

Maximum input level

+19 dBu

Gain Range

0-63dB (1dB increments from 8dB)

Common mode rejection ratio

>70dB at 997 Hz Min Gain

Input impedance with AIR mode OFF

6kΩ

Input impedance with AIR mode ON

2kΩ

Line Inputs 1-4

Connector Type

DB25 Female connector balanced

Frequency Response

20 Hz - 35 kHz +/-0.2 dB

Signal to Noise Ratio

118 dB (A-weighted)

Dynamic Range

118 dB (A-weighted)

THD+N

0.0009%

Maximum input level

+27dBu

Gain Range

0-63dB (1dB increments from 8dB)

Common Mode Rejection Ratio

>70dB at 997 Hz Min Gain

Input impedance with AIR mode OFF

10kΩ

Input impedance with AIR mode ON

10kΩ

Line Inputs 5-8

Connector Type

DB25 Female connector balanced

Frequency Response

20 Hz - 35 kHz +/-0.2 dB

Signal to Noise Ratio

118 dB (A-weighted)

Dynamic Range

118 dB (A-weighted)

THD+N

0.0007%

Maximum input level

+26dBu

Gain Range

N/A (Fixed Gain)

Reference Level

N/A

Common Mode Rejection Ratio

>70dB at 997 Hz Min Gain

Input impedance with AIR mode OFF

20kΩ

Input impedance with AIR mode ON

20kΩ

Instrument Inputs

Connector Type

1/4" Female TS Unbalanced

Frequency Response

20 Hz - 35 kHz +/-0.2 dB

Signal to Noise Ratio

117dB (A-Weighted)

Dynamic Range

117dB (A-Weighted)

THD+N

0.0015%

Maximum input level

+15dBu

Gain Range

0-63dB (1dB increments from 8dB)

Input impedance with AIR mode OFF

Nominal input impedance = 2M3

Input impedance with AIR mode ON

Nominal input impedance = 2M3

Monitor Outputs

Connector Type

1/4" Female TRS Balanced

Frequency Response

20 Hz - 35 kHz +/-0.25 dB

Signal to Noise Ratio

+120dB (A-Weighted)

Dynamic Range

+120dB (A-Weighted)

Maximum Output Level (0 dBFS)

+18dBu

THD+N

0.006%

Stereo Level Balance

0.02dB@ 997Hz

Output impedance

Nominal output impedance = 136R balanced (68R each phase)

Line Outputs 3-10

Connector Type

DB25 Female connector balanced

Frequency Response

20 Hz - 35 kHz +/-0.25 dB

Signal to Noise Ratio

+121dB (A-Weighted)

Dynamic Range (Line Outputs)

+121dB (A-Weighted)

Maximum Output Level (0 dBFS)

+18dBu

THD+N

0.0009%

Stereo Level Balance

0.02dB @ 997Hz

Output impedance

Nominal output impedance = 136R balanced (68R each phase)

Headphone Outputs

Connector Type

1/4" Female TRS Stereo

Signal to Noise Ratio

115dB (A-Weighted) @ 270R

Dynamic Range

115dB (A-Weighted) @ 270R

THD+N

0.01% @ 270R

Maximum Output Level

+16dBu @ 270R

Max Output Power

80mW (+19dBm) @ 270R

Output Impedance

10Ω

Digital I/O

Synchronisation Sources

Internal, ADAT, S/PDIF, Word Clock, Loop Sync, Dante

S/PDIF

Connector Type

Coaxial RCA

Supported Sample Rates

44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

ADAT

Connector Type

Optical TOSLINK

Format

ADAT Digital Lightpipe with S/MUX

Supported Sample Rates

44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Channel Assignments @ 44.1 kHz, 48 kHz Port 1 = Channels 1 - 8, Port 2 = 9 - 16
Channel Assignments @ 88.2 kHz, 96 kHz Port 1 = Channels 1 - 4, Port 2 = 5 - 8
Channel Assignments @ 176.4 kHz, 192 kHz Port 1 = Channels 1 - 2 , Port 2 = Channels 3 - 4

Word Clock

Connector Type

BNC

Word Clock input termination

75 Ohms

Electrical

AC Input Connector Type

Male IEC

AC Requirements

100 - 240V AC, 50 - 60 Hz

Max Power Consumption

35W

Mechanical

1U Rack Mountable

Weights and Dimensions of unboxed unit

Weight (without accessories)

4.59 kg

Height

44 mm

Width

483 mm

Depth (length)

340 mm

Weights and Dimensions of boxed unit

Weight

6.4 kg

Height

110 mm

Width

600 mm

Depth (length)

465 mm

Package Contents

Focusrite Red 4Pre Audio Interface
2m Thunderbolt Cable
Getting Started Guide
IEC Power Cable