Technical Specifications
Technical Characteristics
Better. Faster. Easier.
Excellent sound is the quality Clarett owners love most. With up to 119dB dynamic range, superbly low noise, precision 24/192 conversion and eight specially-designed mic preamps with a unique analogue “Air” effect, Clarett 8Pre is the Thunderbolt audio interface that simply sounds great, easily out-performing others in its class and beyond. Meanwhile, its astonishing 1.67ms round-trip latency* simplifies your workflow and lets you use your favourite plug-ins in real time.



MusicTech Gear of the Year 2015 | Best Interface - Focusrite Clarett 8Pre

Hispasonic: Product of the year

“Where Focusrite have laid down the challenge to other manufacturers, though is in the sound quality of these devices, which offer audio specifications previously unheard of in this price bracket.”

“…the Focusrite Clarett 8Pre offers outstanding value for money (really), the latency claims seem to stand up to scrutiny and the sound is gorgeous, especially when used with the air option. Add to this the ease of set-upand you have a killer offering.”

“I was absolutely able to record and monitor through my DAW without noticeable delay.”
Outstanding versatility, speed, and sonic performance
The Clarett 8Pre's eight newly designed Clarett mic preamps deliver a truly impressive dynamic range. Perfect for your studio or mobile recording rig, the Clarett 8Pre gives you a wealth of connectivity — including ADAT and MIDI I/O — all in a sleek 1U form factor. With its sonic performance, leading edge round-trip audio latency and ease of use, the Clarett 8 Pre is an excellent value.
Eight Clarett mic preamps with Air Effect
Accurate digital conversion and sync
Generous I/O, enough for the whole band
Accessible metering and monitoring
Intuitive, easy-to-use software mixer
Record in Your Comfort Zone
Use your favorite plug-ins in real time
With the Clarett 8Pre's exceedingly low round-trip audio latency over Thunderbolt, you can record and monitor in real time with your favorite familiar DAW plug-ins. No special processing or DSP is required. Select any plug-in and create your dream recording chain on every single channel.
Every Clarett ships with the Focusrite Classic Red 2 and Red 3 AAX, AU, and VST plug-in suite, which accurately models Focusrite's classic Red range EQ and compression hardware.
Record and monitor in real time with your favorite DAW plug-ins
Create custom monitor setups for both you and your artists
Includes Focusrite's Classic Red 2/Red 3 plug-in suite
8 Clarett Mic Preamps with Air Effect
Newly designed Focusrite mic preamps bring your recordings to life
Focusrite fitted the Clarett 8Pre with mic preamps that were designed exclusively for the Clarett range with loads of pristine gain and vanishingly low noise. In addition, these preamps include Focusrite's proprietary Air feature that switches in an analog model of Focusrite's acclaimed classic transformer-based ISA mic pre, breathing life into your recordings. If you've always wanted vocals that shimmer with presence and silky air, then try recording with the Clarett 8Pre. You will be impressed.
Eight newly designed Clarett mic preamps
Copious headroom, vanishingly low noise
Focusrite's proprietary Air feature
Accurate Digital Conversion and Sync
The cleanest way yet to get sound in and out of your DAW
know that conversion is key to superior digital audio, and Clarett features Focusrite's class-leading 24-bit/192kHz conversion. Offering up to 119dB of dynamic range, Clarett is the cleanest way to get sound in and out of your DAW. And naturally, the Clarett 8Pre includes a word clock output for slaving external digital devices.
Focusrite's class-leading 24/192 conversion
Up to 119dB of dynamic range
Word clock output for slaving external digital devices
Track the Band in a Single Take
Generous I/O to handle any recording scenario
The Focusrite Clarett 8Pre gives you 18 audio inputs and 20 outputs packed into a trim 1U rackmount chassis. This includes eight analog inputs, ten analog outputs, stereo S/PDIF I/O, and eight channels of ADAT I/O. The ADAT output is perfect for sending audio to an external D/A for line output expansion, while the input can be used to bring in eight additional digital mic preamp channels, such as the Focusrite OctoPre MkII, for maximum flexibility. In addition, two front-panel mic/line/instrument inputs give you quick and easy access — even when you've got your Clarett rack mounted. And those hi-Z inputs have copious headroom to handle your guitars and basses with hot passive or active pickups.
8 analog inputs, 10 analog outputs
Stereo S/PDIF, 8 channels of ADAT I/O
Two front-panel mic/line/instrument inputs

Accessible Metering and Monitoring
You're always informed and in control
Featuring a 6-segment, multichannel LED meter, the Clarett 8Pre's monitor panel keeps you informed of analog and digital input levels and main monitor outputs. Monitoring facilities include a level control, as well as dim and mute buttons. Add to that two wide dynamic range front-panel headphone outputs with enough power to deliver healthy level to high-impedance headphones, and the Clarett becomes your go-to device for trackingand mixing.
6-segment, multichannel LED meter
Monitor level control, plus dim and mute buttons
Two wide-dynamic-range front-panel headphone outs
Intuitive and Easy-to-use Software Mixer
Easy configuration of monitoring and routing setups
Your Clarett comes with Focusrite Control, a brand-new software mixer that makes short work of configuring your monitoring and routing setups. Simple and intuitive to use, Focusrite Control offers an easy-to-grasp traditional mixer workflow and gives you immediate access to dim, mute, and other internal hardware functions.
Makes short work of configuring your monitoring and routing
Traditional mixer workflow
Quick access to internal hardware functions
Accessible Metering and Monitoring
The monitor section provides a clear view of input and main monitor output levels, via a 6-segment, multichannel hardware meter. Monitor features include an assignable level control, plus back-lit dim and mute buttons, alongside dual high-power headphone outputs.
Enough Channels for the Band
18 audio inputs and 20 outputs within a 1U rack space, including eight analogue inputs, 10 analogue outputs, stereo S/PDIF I/O and eight channels of ADAT I/O. The ADAT ports are ideal for sending audio to an external D/A for line output expansion, or adding eight channels of digital mic pre.
Tech Specifications

The world is full of innovative software companies creating a wealth of powerful plug-ins. With such variety, you’ll want to find exactly the right plug-ins for you, and use them in real time, thanks to Clarett’s ultra-low latency environment. To help you on this mission, we’ve formed the ‘Plug-in Collective’, working with the very best to bring you exclusive plug-in offers and content every month.
Supported Operating Systems
OSX 10.9 Mavericks or 10.10 Yosemite
Windows Compatible 64-bit 8.1 or 10 windows
The popular Clarett range of Thunderbolt™ interfaces are now compatible with PCs with the release of the Clarett Windows driver. The driver enables users to run these interfaces with the growing number of Thunderbolt-equipped Windows computers, delivering identical functionality to that experienced on the Mac. Windows users can enjoy sub 3 milliseconds round trip latency, and the same reliable, stable operation as Mac-based Clarett owners already experience. The low latency allows users to record and monitor while using their favourite plug-ins in real time, as well as other DAW workflow benefits.
The first release of the driver will support the Thunderbolt 1 and Thunderbolt 2 protocols for all Clarett interfaces. The driver is compatible with the latest 64-bit updates of Windows 8.1 and Windows 10. Further details of the driver specification and compatibility can be found. Future iterations will add support for Thunderbolt 3 Type C connectivity and the range of Red interfaces.
The driver also supports Focusrite Control, Focusrite's included software mixer designed for easy configuration of monitoring and routing setups, which is now available in a Windows version, again with identical functionality to the Mac version, including support for Focusrite Control iOS.
Focusrite’s Clarett audio interfaces are widely praised for their sound quality, performance and value for money. They feature specially-designed high-performance, low noise, low distortion mic preamps, which include the unique analogue “Air” effect, emulating the sound of Focusrite’s heritage transformer-based mic preamps. The interfaces include precision 24-bit/192 kHz conversion and offer super-low latency.
WHY THUNDERBOLT?
Thunderbolt differs a little from interfaces like USB and FireWire. It brings the PCI Express interface – used for super-fast graphics cards and other slots inside the computer – out to external devices. It’s not so much an interface as a bus that gives you direct access to the machine’s inner workings. And as a result, it’s ideal for audio, with exceptionally high speed and correspondingly low latency – making possible the astonishingly low round-trip latency figures that Clarett offers – and unparalleled flexibility. The Clarett range demonstrates many of the significant benefits that Thunderbolt provides.
ROUNDTRIP LATENCY PERFORMANCE
Round Trip Latency (ms) tested at 96 kHz on Windows 10 and a Molten Music Technology X99 machine
| Buffer Size | Cubase Pro 8 | Ableton Live 9 | Pro Tools 12 | Reaper 5 |
|---|---|---|---|---|
| 32 | 2.9 | 3.2 | n/a | 2.8 |
| 64 | 3.6 | 3.6 | 3.5 | 3.4 |
| 128 | 5.3 | 5.3 | 5.3 | 5.2 |
Round Trip Latency (ms) tested at 48 kHz on Windows 10 and a Molten Music Technology X99 machine
| Buffer Size | Cubase Pro 8 | Ableton Live 9 | Pro Tools 12 | Reaper 5 |
|---|---|---|---|---|
| 32 | 4.1 | 4.8 | 4.1 | 4.0 |
| 64 | 5.8 | 5.8 | 5.8 | 5.6 |
| 128 | 9.8 | 10.5 | 9.8 | 9.6 |
Supported Sample Rates
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
Microphone Inputs
| Frequency Response | 20 Hz - 20 kHz +/-0.1 dB |
| Dynamic Range | 118 dB (A-weighted) |
| THD+N | 0.001% |
| Noise EIN | –128 dBu (A-Weighted) |
| Maximum input level | +18 dBu |
| Gain Range | 57dB |
Line Inputs
| Frequency Response | 20 Hz - 20 kHz +/-0.1 dB |
| Dynamic Range | 116 dB (A-weighted) |
| THD+N | 0.005% |
| Maximum input level | +26dBu |
| Gain Range | 57dB |
Instrument Inputs
| Frequency Response | 20 Hz – 20 kHz ± 0.1 dB |
| Dynamic Range | 111 dB (A-weighted) |
| THD+N | 0.001% |
| Maximum input level | +14dBu |
| Gain Range | 57dB |
Line & Monitor Outputs
| Dynamic Range (Line Outputs) | 119dB |
| Dynamic Range (Monitor Outputs) | 117dB |
| Maximum Output Level (0 dBFS) | +18 dBu |
| THD+N | 0.0007% |
Headphone Outputs
| Dynamic Range | 112dB |
| THD+N | 0.0008% |
| Maximum Output Level | +16dBu |
Comparing the Claretts
Focusrite's Clarett line includes two multi-channel rackmount models, the Clarett 8Pre and the Clarett 8PreX. If you're configuring a mobile recording setup, you will appreciate the svelte 1U Claret 8Pre and its blend of performance and portability. If, however, you're seeking a preamp/interface for permanent studio installation, the 2U Clarett 8PreX offers an expanded range of professional features you'll find extremely valuable.
|
| Clarett 8Pre | Clarett 8PreX |
|---|---|---|
| Focusrite mic preamps | 8 | 8 |
| Analog inputs | 8 | 8 |
| Analog outputs | 10 | 10 |
| Headphone outputs | 2 | 2 |
| Instrument inputs (Hi-Z) | 2 | 2 |
| 48V phantom power | 2 Banks | Per-channel |
| Highpass filters | No | Per-channel |
| Phase reverse | No | Per-channel |
| Digital inputs | 10 | 18 |
| Digital outputs | 10 | 18 |
| S/PDIF | Yes | Yes |
| ADAT inputs | 8 Ch | 16 Ch |
| ADAT outputs | 8 Ch | 16 Ch |
| Connection protocol | Thunderbolt | Thunderbolt |
| LED metering | 6-segment | 6-segment |
| Switchable input metering | No | Yes |
| Rackmount height | 1U | 2U |
| Wordclock output | Yes | Yes |
| Wordclock input | No | Yes |
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