Focusrite Clarett Plus 4PRE. Focusrite Clarett+ 4Pre is a premium 18-in / 8-out USB-C audio interface designed for musicians, producers, and project studios requiring high-quality recording, flexible connectivity, and professional sound. Featuring four Clarett+ mic preamps, upgraded converters, and extensive I/O, it provides a powerful hub for recording bands, instruments, and complex studio setups. The four Clarett+ preamps deliver exceptional headroom, ultra-low distortion, and low noise performance. All-analog Air mode recreates the character of Focusrite’s ISA110 preamp, adding clarity and presence to vocals, guitars, and acoustic instruments. Two dedicated JFET instrument inputs preserve the natural tone and response of electric guitars and basses. With improved A-D/D-A converters, ADAT expansion, MIDI connectivity, and flexible monitoring options, the Clarett+ 4Pre offers a professional workflow for tracking, mixing, and integrating external hardware. Key Features 18-in / 8-out USB-C audio interface 4 Clarett+ mic preamps with high headroom and ultra-low noise All-analog Air mode inspired by Focusrite ISA110 circuitry 2 JFET Hi-Z instrument inputs for natural guitar and bass tone Premium A-D/D-A converters with low distortion and high dynamic range ADAT optical input for up to 8 channels of digital expansion MIDI I/O for connecting external instruments Powerful headphone output with accurate monitoring USB-C connectivity Focusrite Control software for Mac, PC, and iOS What's Included Focusrite Clarett+ 4Pre USB-C cable Software bundle User documentation