http://vfepedals.com/merman.html The MERMAN VFE-ifies the original Klon overdrive circuit (and yes, we just used VFE as a verb). The original circuit uses three signal paths to achieve its unique, yet transparent tone. The MERMAN gives you control over the mix of these 3 pathways in the DRIVE, WARM, and BOTTOM controls. The COMP control fine tunes the compression in the drive section, giving you control over the precise amount of harmonics and dynamics of the germanium clipping diodes.