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The Focusrite ISA C8X combines the trademark ISA sound with comprehensive remote control and all the analog and digital I/O, routing, and recallability you need to run your entire studio, plus switchable impedance, balanced inserts, and high-pass filtering. The first two channels feature ISA preamps with classic Lundahl LL1538 transformers and Console and 430 Air modes for new tonal options. All eight are fully controllable from the front panel and via Focusrite Control 2.
The ISA Sound, Evolved
The ISA story starts in 1985 with a request from Sir George Martin: build a no-compromise mic preamp. That circuit became the foundation of every ISA product made since. 40 years on, it lives in ISA C8X — Focusrite's first ISA audio interface, housed in anodised aluminium in Focusrite's original blue colour, with heritage transformer sound in a 26-in, 28-out USB-C interface built for the modern studio.
Heritage Sound With Total Control
The two ISA preamps at the heart of ISA C8X feature the same Lundahl LL1538 transformers chosen in 1985. Warm, rich, and detailed on any source, with up to 79dB of gain, switchable impedance, and balanced inserts — and for the first time in ISA’s storied history, remotely controllable via Focusrite Control 2.
All-Analog Tone
ISA gives you two relay-switchable analog circuits. Console mode introduces warm saturation and low-end punch via a variable soft-clip circuit. 430 Air, lifted directly from the ISA 430 MkII, adds high-end shimmer through an inductor-based high-shelf filter. Both are completely analog with full-bodied sound.
Studio-Grade Tools, Right In The Box
ISA C8X comes with Hitmaker Expansion — a curated collection of 15 premium tools from respected names in audio included as standard. Inside is the bx_console Focusrite SC by Brainworx: a faithful emulation of the ISA 110 and 130 modules, bringing the warmth and character of the original Studio Console into your DAW. Oxford Reverb by Sonnox adds precise, musical spatial design.