Focusrite ISA 828 MkII 8-Channel Mic Preamp & DI

Eight Channels of Legendary ISA Transparency

The Focusrite ISA 828 MkII brings eight channels of the iconic ISA transformer-based mic preamp into a single 2U rack unit — the same circuit lineage trusted by Abbey Road, Air Studios, and world-class engineers for decades. Whether you're tracking a full drum kit, a string ensemble, or a live band in one pass, the ISA 828 MkII delivers the headroom, warmth, and detail that defines professional recording.

Key Features

• 8 × ISA transformer-based mic preamps — the same topology as the original ISA 110 console module
• High-impedance instrument (DI) inputs on channels 1–4 for direct guitar, bass, and keys
• Variable input impedance (4 settings per channel) to tailor the preamp's interaction with any microphone
• Air mode — engages the original ISA transformer circuit for added harmonic presence and top-end lift
• Optional 8-channel A/D card (sold separately) for direct digital output at up to 192 kHz
• Insert points on all 8 channels for outboard processing in the signal chain
• Word clock I/O for tight synchronisation in larger studio setups
• Robust 2U steel chassis built for daily studio and live recording use

Who It's For

The ISA 828 MkII is the centrepiece of any serious recording setup — from home studios stepping up to professional-grade front ends, to established studios needing a reliable, high-channel-count preamp solution. Pair it with your favourite interface or converter and experience the difference a true transformer-based preamp makes.