The Mark Sampson designed Revolver was created based off of a custom stereo amp that Mark designed. I sat and played that amp for hours and was just mesmerized at how magical the sound was! The Revolver is an exact re-creation of that circuit and, in some respects, is even better! The Revolver is a stereo splitter/EQ and Boost that you can use as a stereo splitter, with no vibe, and then you can bring the vibe into the mix if you choose. The Boost/EQ section has that classic Mark Sampson chime that we are all used to so expect lush, beautiful, bell-like tones all the way around!