Used Focusrite ISA One Microphone Preamp

The Focusrite ISA One is a premium single-channel microphone preamp featuring Lundahl input transformer, variable impedance, and selectable mic, instrument, or line inputs. Offering up to 80dB of gain and classic ISA transformer-based circuitry, it delivers warm, transparent sound for professional recordings. This used unit is in great condition, fully functional, and perfect for studio or live applications seeking high-quality signal capture with legendary Focusrite clarity and headroom.