Solid State Logic SSL 500 Series VHD+ Variable Harmonic Drive Preamp Module

The SSL VHD+ Pre Module brings the legendary preamp technology from SSL's flagship Duality console directly into the accessible 500 series format, making professional-grade recording capabilities available to studios regardless of size. This remarkably versatile module operates as both an ultra-clean SSL SuperAnalogue™ preamp and features the innovative switchable VHD mode for creative sound shaping.

SSL's patented Variable Harmonic Drive (VHD) system utilises a completely analogue signal path to generate rich harmonic distortion that ranges from subtle to extreme. At lower gain settings, the VHD process adds gentle valve-style warmth or a hint of transistor character through 2nd or 3rd harmonic distortion, or a blend of both. Push the input gain higher and the distortion becomes increasingly aggressive, culminating in fierce, trashy transistor-style grunge at maximum settings.

The VHD+ Pre module offers unparalleled flexibility from a studio-grade preamp, spanning the spectrum from pristine traditional SSL clarity to subtle warming effects and heavily saturated transistor distortion. This innovative approach redefines what users can expect from a single preamplifier unit.