In the early 90s, Mark Baier was working as a stockbroker, playing music for fun. Having finally made enough money for the first time to buy new music equipment, Mark excitedly purchased a brand new amp.
He was unfortunately disappointed. The new amp didn't sound anything like his old second hand amp.
After comparing the electronics between his old and new amps, he realized that in order to have a new amp that sounded like his old amp, he'd need to build it himself.
Knowing nothing about electronics, he taught himself 1960s electronics via his local library and then went to work.