Used Focusrite ISA One Microphone Preamp

Get classic Focusrite sound at a great value with this used ISA One Microphone Preamp in good condition. Built around the renowned Lundahl input transformer, it delivers clean, detailed gain with up to 80 dB available, plus switchable input impedance to match a wide range of microphones. Features include phantom power, high-pass filter, polarity reverse, insert point, and dedicated DI instrument input—ideal for vocals, acoustic instruments, and bass or guitar tracking.