Solid State Logic VHD+ Pre Module

Uniquely versatile VHD based preamp technology

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Solid State Logic VHD+ Pre Module

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Solid State Logic VHD+ Pre Module

The SSL 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 SuperAnalogueTM grade recordings but also features a switchable VHD mode. SSL’s patented Variable Harmonic Drive (VHD) system uses a 100% analog signal path to generate rich harmonic distortion.

Increase VHD input gain and the Variable Harmonic Drive process introduces either 2nd or 3rd harmonic distortion or a blend of the two to your source material. At lower gain settings it adds gentle valve-style warmth or a touch of transistor edge. As the gain is increased the more extreme the distortion becomes, until at high gain settings it delivers fierce trashy transistoresque grunge.

The VHD+ Pre module gives the user ultimate versatility from a studio-grade preamp. Whether it’s ultra-clean traditional SSL, subtle warming, or totally trashy transistor distortion, VHD will change your expectations of what a preamplifier should deliver.

Key features

  • SSL SuperAnalogueTM grade preamp
  • 2nd order harmonics (valve warmth to extreme distortion)
  • 3rd-order harmonics (transistor edge to totally trashed)
  • Absolute control via 2nd and 3rd-order harmonic blend
  • Variable Harmonic Drive (VHD) in/out switch
  • Switchable LF Filter
  • +48V phantom power
  • Phase invert switch
  • PAD switch
  • Hi-Z switch