The MARK V is really a collection of amplifiers. There are far too many circuits and sounds to think of it as merely an amp. It is also a living history of our company. From the ground breaking MARK I that introduced the world to high-gain with it’s cascading pre amp, to the Mark II - the world’s first high gain Dual Mode Channel Switching amplifier and it’s later siblings that introduced Simul-ClassTMpower. From the MARK III that ushered in the era of 3 Channel footswitching performance, to the MARK IV which gave all this power individual control, the MARK V is the embodiment of the last 40 years of guitar amp history.