The SSL VHD+ Pre is an immensely versatile preamp that delivers both ultra-clean SuperAnalogue™ recordings and rich harmonic distortion via SSL’s patented Variable Harmonic Drive (VHD) system.

With a 100% analog signal path, VHD mode allows you to dial in 2nd or 3rd harmonic distortion or a blend of both. At lower gain settings, it adds subtle valve-style warmth or transistor edge, while higher gain settings push it into fierce, trashy, transistor-like grunge. Whether you need pristine clarity or bold character, the VHD+ Pre is the ultimate tool for creative recording and processing.

The VHD+ Pre Module for the popular 500 format modular rack platform makes the uniquely versatile VHD-based preamp technology from Duality, SSL's industry-leading large format studio console, available for studios of all sizes. The VHD+ Pre module is an immensely versatile recording and processing device. It can deliver ultra-clean SSL SuperAnalogue^TM grade recordings but also features a switchable VHD mode. SSL's patented Variable Harmonic Drive (VHD) system uses a 100% analogue signal path to generate rich harmonic distortion.