Wolff Audio W1 500 Series Microphone Preamplifier

The Wolff Audio W1 500 Series microphone preamplifier brings the company’s large-format console mic preamp design into a single-channel 500 Series module for tracking rooms, overdub rigs and hybrid studios. Designed by Paul Wolff, the W1 uses custom Cinemag input and output transformers, fully relay-controlled signal switching, socketed op-amp architecture and dual-stage gain control to deliver true console topology in a compact modular format. With relay-controlled gain, pad, phantom power and line switching, the W1 is built for engineers who need transformer depth, high headroom and precise gain-stage control from any 500 Series rack.

Console Mic Preamp Design in 500 Series Format

The W1 is not a simplified version of a console circuit; it is Wolff Audio’s console microphone preamp architecture adapted for a single 500 Series slot. Custom Cinemag transformers provide input and output character, while the socketed op-amp design gives engineers room for customization. Moreover, the relay-controlled signal path supports long-term reliability and consistent switching behavior during professional tracking work.

High Headroom and Dual-Stage Gain Control

The W1 operates with a lower baseline gain structure than many conventional mic preamps, increasing usable headroom while preserving transformer loading and impedance relationships. Gain is selectable in 10dB steps up to 50dB, with additional ±6dB trim and a dedicated output fader positioned between gain stages for a maximum gain of approximately 56dB. This lets engineers drive the input transformers and preamp circuitry for tone while controlling output level to converters.

Front-Panel Control and Console-Derived Metering

The W1's front panel includes a Neutrik combo XLR/1/4" mic and instrument input, relay-controlled 20dB pad, relay-controlled 48V phantom power, polarity reverse, gain trim, dedicated output fader and console-grade LED metering. The metering includes dual reference display at -20dB and +4dB, intelligent release behavior, clip indication and output dimming during phantom power switching. Designed around classic console principles, the Wolff Audio W1 500 Series microphone preamplifier combines transformer-based tone with flexible single-channel operation.