NAD
Founded in London in 1972, by Dr. Martin L. Borish, an electrical engineer with a PhD in physics. In the late-1970s. the NAD 3020 was one of the most successful entry level, high end amplifiers of all time. Designed by Bjørn Erik Edvardsen, who still designs for the company to this day, it was highly regarded by various magazines in Britain, and eventually sold like proverbial hot cakes in the U.S.
NAD’s philosophy is to include only genuinely useful features for aesthetically understated designs when compared to other competitors’ products. NAD focuses on the concept of “effective power” and its amplifiers deliver generous headroom, meaning that they may be able to deliver dynamic power bursts far in excess of their rated power. The key to this feature requires use of a flexible power supply which stores significant reserve current for quick release at moments of high musical load.