Focusrite
Focusrite 4Pre Clarett+ USB Audio Interface
★★★★★
Focusrite's Clarett+ 4Pre delivers studio-grade recording with four ultra-low-noise preamps and high-resolution converters over USB.
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Overview
Key Features
Four professional quality Clarett⁺ preamps Hear every nuance and capture clear and powerful audio with preamps that bring masses of headroom, low distortion and ultra-low noise
Make vocals shine with all-analogue Air Premium, relay-controlled analogue circuitry on every preamp emulates the classic Focusrite ISA110 by switching the impedance and adding two cumulative high shelves, totalling a 4dB boost in the high frequencies
New and improved A-D and D-A converters Create tighter mixes and make more accurate recordings with extremely high-performance, independent A-D and D-A converters, which deliver extremely low noise, low distortion and high dynamic range
Two improved, powerful, transparent analogue headphone outputs Twin outputs provide a flat frequency response at all output levels with any type of headphones, to inspire the best-sounding recordings and mixes, and evoke amazing vocal performances
Two JFET instrument inputs Dedicated, ultra-high-impedance JFET instrument inputs, with extremely wide audio bandwidth, mimic guitar amp inputs to preserve the natural tone of guitars and capture their true character
ADAT optical input Expand Clarett⁺ 4Pre to make the most of ADAT-compatible outboard equipment such as Clarett OctoPre, with eight channels of digital expandability, perfect for every stage of your creative journey
Software bundle Get studio-grade results with the included bundle of mixing plug-ins and virtual instruments
Focusrite Control Easy-to-use and feature-packed software for Mac and PC gives you complete control over all aspects of Clarett
Specifications
Brand
Focusrite
Model
Clarett+ 4Pre
Mic Preamps
4 (with All-analogue Air)
Instrument Inputs
2 (JFET, ultra-high impedance)
Total Inputs / Outputs
18-in / 20-out
Headphone Outputs
2 (independent)
Digital Connectivity
ADAT Optical Input, MIDI I/O
Host Connection
USB
Phantom Power
48V (all 4 preamps)
Included Software
Focusrite Control, mixing plug-ins, virtual instruments
Pros & Cons
👍 Pros
- Four Clarett+ preamps with exceptionally low noise floor and high headroom for clean recordings
- All-analogue Air mode adds ISA 110-inspired character to vocals and acoustics at the push of a button
- ADAT optical input expands the interface to 18 inputs for growing studio needs
- Two dedicated JFET instrument inputs preserve the natural tone of guitars and basses
- Dual independent headphone outputs with flat frequency response across all volume levels
👎 Cons
- Premium price point compared to Focusrite's Scarlett line and competing USB interfaces
- No Thunderbolt option — USB-only connectivity may limit round-trip latency for very large sessions
- Larger desktop footprint than two-preamp interfaces, which may be cumbersome for mobile setups
- ADAT expansion requires purchasing a separate preamp unit to take full advantage of the additional inputs
Frequently Asked Questions
How many simultaneous inputs can I record at once?
The Clarett+ 4Pre offers 18 inputs total — four mic/line preamps on the front panel, two JFET instrument inputs, plus eight additional channels via the ADAT optical input, allowing you to record up to 18 tracks simultaneously.
What does the All-analogue Air mode do?
Air mode is a relay-controlled analogue circuit on each preamp that changes the input impedance and applies a gentle high-frequency boost, emulating the character of Focusrite's classic ISA 110 transformer-based preamp for a brighter, more open vocal and acoustic sound.
Does the Clarett+ 4Pre require external power?
No, it is bus-powered over USB for basic operation, though the unit also provides 48V phantom power to all four mic preamps for condenser microphones.
What software is included with the interface?
Focusrite bundles a collection of studio-grade mixing plug-ins and virtual instruments, along with Focusrite Control — a desktop application for Mac and PC that lets you manage routing, monitor mixes, and adjust all hardware settings.
Can I use this interface for live performance or only studio recording?
It works for both. The low-latency performance makes it suitable for live monitoring, and the dual headphone outputs and multiple line outputs support flexible stage or studio monitoring setups.
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