Focusrite Clarett+ OctoPre Microphone Preamp and ADAT Expander
The Focusrite Clarett+ OctoPre is a premium eight-channel microphone preamp and ADAT expander for professional recording studios. It is the ideal solution for expanding an existing audio interface with additional high-quality inputs and outputs. The Clarett+ OctoPre delivers the renowned Focusrite sound whilst maintaining exceptional audio performance throughout the signal path.
The unit features eight Clarett microphone preamps with all-analogue Air mode. This recreates the character and clarity of Focusrite’s legendary ISA microphone preamps, allowing vocals, drums, guitars, and acoustic instruments to sound more open and detailed.
Two high-impedance JFET instrument inputs provide an authentic amplifier-like response for guitars and basses. This makes the Clarett+ OctoPre equally suitable for recording solo performers, full bands, podcasts, and studio sessions.
High-performance 24-bit/192 kHz converters capture every detail with ultra-low distortion and up to 124 dB of dynamic range. Additionally, ADAT connectivity allows seamless integration with Focusrite Clarett+ interfaces and other ADAT-compatible recording systems.
High-quality analogue insert points make it easy to connect compressors, equalisers, and other outboard studio equipment. This gives engineers greater flexibility during recording and mixing.
Key Features
- Eight-channel microphone preamp and ADAT expander
- Eight Clarett microphone preamps
- All-analogue Air mode inspired by ISA microphone preamps
- Two high-impedance JFET instrument inputs
- 24-bit/192 kHz audio conversion
- Up to 124 dB dynamic range
- Eight analogue outputs
- ADAT connectivity for easy system expansion
- Analogue insert points for outboard processors
- Ideal for expanding any ADAT-compatible recording system
The Focusrite Clarett+ OctoPre is an excellent choice for studios that need more recording channels without sacrificing audio quality. It combines premium microphone preamps, professional audio conversion, and flexible expansion in a compact rackmount unit.








