L12X is an analog simulation inspired by the Marshall® Lead 12™ solid state amplifier of the late ‘80s

The original head was an op-amp based amplifier: compared to tubes or FET/JFET transistors, the op-amp is able to provide a huge amount of gain with very little or no distortion. However, when the amplified signal reaches the voltage applied to power the op-amp, it gets clipped. Marshall engineers exploited that to provide a great sounding amplifier with very few components.

This little solid state head is able to push cabinets up to 4×12 and can easily sound like a JCM™. We modified the original circuit by adding a Contour knob (to get a more scooped tone) and an additional Boost overdrive stage. We also included an integrated Cab Simulator, loaded with a Marshall cabinet IR featuring Celestion V30 cones.

Integrated cabinet provided by Seacow Cabs


  • 3x Analog Modeled Amplifiers
  • Solid State Amplifier: Standard
  • Tube Amplifiers: Clean & Metal
  • 2 Channels (Clean/Boost)
  • 3 bands tone stack
  • Contour
  • Integrated Cabinet Simulator
  • Resizable interface
  • Standalone included
  • No License File required


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