Focusrite Clarett 8PreX 26×28 Thunderbolt Audio Interface

Designed for recording studios, the Focusrite Clarett 8PreX Thunderbolt Audio Interface combines 24-bit 192 kHz A/D/A conversion, 119 dB real-world dynamic range.

Key Features
  • 8 Preamps Model the Classic ISA Design
  • 24-Bit / 192 kHz Audio Resolution
  • 116 dB A/D and 119 dB D/A Dynamic Range
  • Thunderbolt Latency under 1 ms

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Designed for recording studios, the Focusrite Clarett 8PreX Thunderbolt Audio Interface combines 24-bit 192 kHz A/D/A conversion, 119 dB real-world dynamic range, 1 ms roundtrip Thunderbolt latency, and eight microphone preamps that can model the sound of the company’s ISA transformer-based preamps using the air effect. The high resolution recording and ultra-low latency allows you to enable 64-bit AAX, AU, and VST compatible DA plug-ins while monitoring recordings. The interface is now fully compatible with Windows-based computers, providing stable operation with identical functionality on both platforms, while offering sub-3 ms latency. Also provided is a Windows version of the Focusrite Control software mixer for monitoring and routing configuration.

The interface comes with 64-bit AAX, AU, and VST compatible Red 2 and Red 3 plug-in suite. In addition to the Red Plug-in Suite, the interface includes the Softube Time and Tone Pack. Modeled after the Drawmer 1973 FET Stereo compressor hardware, the Drawmer S73 Intelligent Master Processor is a plug-in that aids in balancing and shaping a mix. TSAR-1R Reverb adds space, depth, and width to a sound. Change settings with a single slider, from realistic three-dimensional rooms to dramatic and dreamlike halls. Tube Delay is an echo effect that can go from clean to rude by overdriving its three modeled tube stages – delivering everything from realistic room echoes, to rockabilly style slap back, to dub reggae echo. Saturation Knob is a modeled output distortion unit that adds grit and warmth – use it to fatten up bass lines, add some harmonics and shimmer to vocals, or simply destroy a drum loop.

Housed in a 2RU chassis, the interface features two front instrument ¼” TRS inputs, eight rear panel microphone XLR-3F inputs, eight ¼” line level inputs, six line level ¼” TRS outputs, two ¼” TRS monitor outputs, word clock I/O, 5-pin MIDI I/O, stereo S/PDIF I/O, and sixteen channels of ADAT I/O for expansion.

The front panel also features two ¼” TRS headphone outputs with separate volume controls. A dedicated gain control, a +48V phantom power switch, a phase reverse switch, and a high pass filter switch is provided for each microphone preamplifier. A six-segment multi-channel LED meter provides visual feedback, as well as a level control, a dim button, and a mute button.

Eight New Clarett Mic Pres with Extra “Air”

Features a special “Air” setting that switches in an analog model of the classic transformer-based Focusrite ISA microphone preamplifier while the instrument inputs provide extra headroom to handle the loudest pickup

Use DAW Plug-ins in Real Time

Thunderbolt connectivity provides a round trip latency of 1 ms which enables you to monitor through your DAW with your favorite plug-ins such as EQ, reverb, or compression

Precision Digital Conversion

Offers 24-bit 192 kHz conversion with up to 119 dB of dynamic range


Provides 26 audio inputs and 28 outputs into a 2U rack space, including 8 analog inputs, 10 analog outputs, stereo S/PDIF I/O and 16 channels of ADAT I/O. Connect up to 16 more mic preamps over ADAT for a 24-channel microphone setup

Front Panel I/O

Offers two convenient front panel inputs for when the unit is rack mounted

Accessible Metering and Monitoring

Provides analog and digital input levels and main monitor outputs, via a 6-segment, multichannel hardware meter. The monitor features include a level control, plus dim, and mute buttons alongside dual high-power headphone outputs

Downloadable iOS Remote Control

Downloadable Focusrite iOS Control app adjusts cue mixes remotely from iOS devices (iPad, iPhone, or iPod touch)

Softube Time and Tone Bundle

Contains Drawmer S73 Intelligent Master Processor, TSAR-1R Reverb, Tube Delay echo effect, and Saturation Knob, a modeled output distortion unit


Max Sample Rate/Resolution

192 kHz / 24-Bit

Host Connection

1 x Thunderbolt (MDP) (Thunderbolt 2)

Analog I/O

2 x 1/4" TRS Hi-Z Input
8 x 1/4" TRS Line Input
8 x XLR 3-Pin Mic Input
2 x 1/4" TRS Headphone Output
8 x 1/4" TRS Line Output
2 x 1/4" TRS Monitor Output

Digital I/O

1 x BNC (Word Clock) Output
1 x TOSLINK / ADAT Input
1 x TOSLINK / ADAT Output
1 x RCA Coaxial / S/PDIF Input
1 x RCA Coaxial / S/PDIF Output


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

Frequency Response

Hi-Z Inputs:
20 Hz to 20 kHz ±0.1 dB
Line Inputs:
20 Hz to 20 kHz ±0.1 dB
Mic Inputs:
20 Hz to 20 kHz ±1 dB

Gain Range

Hi-Z Inputs:
57 dB
Line Inputs:
57 dB
Mic Inputs:
57 dB

Max Input Level

Hi-Z Inputs:
+14 dBu
Line Inputs:
+26 dBu
Mic Inputs:
+18 dBu

Max Output Level

Headphone Outputs:
+16 dBu
+18 dBu

Dynamic Range

112 dB
Hi-Z Inputs:
111 dBA
Line Inputs:
116 dBA
Mic Inputs:
118 dBA
Monitor Outputs:
117 dB
Line Outputs:
119 dB


Headphone Outputs:
Hi-Z Inputs:
Line Inputs:
Mic Inputs:




Mic Inputs:
-128 dBu (A-Weighted)

Sample Rates

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

OS Compatibility

macOS 10.9
macOS 10.10
macOS 10.11
macOS 10.12
Windows 8.1
Windows 10

Required Hardware

Available Thunderbolt Port

Rackmount Size

2 RU

Package Weight

16.4 lb

Box Dimensions (LxWxH)

24.2 x 16.6 x 7.3"


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