Focusrite ISA Two Dual-Channel Transformer Mic Preamp & DI

Bring classic console-grade warmth and clarity to your recordings with the Focusrite ISA Two. Housed in a compact 1 U rackmount chassis, this dual-channel preamp pairs Lundahl transformer-based circuitry and variable input impedance with Focusrite’s signature Air-mode for an open, detailed sound. Front-panel instrument inputs and switchable high-pass filters give you all the tools you need—whether you’re tracking vocals, guitars, drum overheads, or line-level sources.

Key Features

• Transformer-Based Preamps – Lundahl LL1538 input transformers and custom outputs deliver up to 80 dB of gain, ultra-low noise, and smooth analog character.

• Air-Mode – Emulates Focusrite’s classic transformer-balanced high-frequency lift for added presence and sparkle.

• Variable Impedance – Four mic-loading options (600 Ω to 6.8 kΩ) let you tailor tone from tight and focused to warm and colored.

• Front-Panel DI – Two high-impedance JFET inputs for electric guitar, bass, and keyboards—no external DI required.

• Switchable High-Pass Filter – 18 dB/octave cutoff from 16 Hz to 420 Hz to tame rumble and clean up low-end.

• Phase & Phantom Power – Independent 48 V phantom power and polarity-reverse switches per channel.

• Pro-Grade Metering – Two large LED meters provide visual feedback of gain and signal level.

What’s Included

• Focusrite ISA Two 2-Channel Mic Preamp & DI

• IEC Power Cable

• Quick-Start Guide & Safety Information

Why You’ll Love It
Whether you’re building a project-studio rack or upgrading your console chain, the ISA Two delivers legendary Focusrite sound in a road-ready package. Its versatile I/O, tonal flexibility, and transformer-driven warmth make it the perfect “go-to” preamp for vocals, instruments, and more.