http://www.bearfootfx.com/product/dyna-redhot-distortion/
Product Description
The Dyna RedHot takes your Dyna Red vintage Marshall stack sound and HotMods it with more presence, edge and roar! And it adds a more versatile Tone knob, too. What’s unexpected is that the guitar volume knob interaction is amazing, really. It retains the proper balance all the way down, so you can easily pick your most distorted sound on the pedal controls and do the rest from your guitar.