Focusrite ISA428 - Pre-Amplifier - Very Good

Why This One

• Very good condition — light cosmetic wear, no functional issues
• Fully tested — all applicable functions verified working
• Transformer-based Focusrite ISA preamp with a lineage rooted in classic studio design.
• Professional-grade preamp available at a significant saving over new retail price.

Condition: Very Good

This Focusrite ISA428 is a very good-condition pre-amplifier. It has passed our 8-point functional test, with 2 item(s) not applicable to this unit. Please review all photos carefully, as they provide an accurate representation of the cosmetic condition of the product.

What's Included

• Focusrite ISA428
• No additional accessories included

About This Model

The Focusrite ISA428 is a rack-mounted microphone preamplifier built around transformer-based circuitry that traces its lineage to the classic ISA 110 module originally designed for Neve's console work. Intended for professional and project studio use, it delivers the kind of clean, detailed, transformer-coupled gain that suits demanding recording applications — from tracking vocals and acoustic instruments to capturing full band sessions with consistent headroom and low noise. Its design philosophy prioritises transparency and musical warmth through analogue signal paths, making it a well-regarded tool in studios where preamp quality is taken seriously.

A great opportunity to own a Focusrite ISA428 at this price point.