Modeled after four separate amplifiers the Vertex Ultraphonix MK II Overdrive will add an incredibly unique and memorable character to your tone. Built with 100% analog circuitry and mechanical true bypass this D-style drive easily re-creates the legendary fat overdrive note bloom and harmonic overtones produced by an ultra-rare American boutique amplifier. When using the Vertex Ultraphonix guitar peal you will notice how it drives the amp but you won't see any loss in clarity.