In the earliest days of NAD, Fulet in Taiwan was the OEM manufacturer. By 1984, Fulet wanted to introduce their TV product, so they formed the Proton brand, selling the 600M and 602M monitors...fabulous pieces in their time. NAD had terrible QC problems, all caused by Fulet, and in the year the 7140 was replaced by the 7150, NAD found anotherOEM manufacturer, and Fuluet /Proton introduced audio pieces ripping off NAD designs. Proton gradually went from the muddy NAD look to the style found in the 2200, and Fulet did get better with QC and overall manufacturing. This ripoff period is when the two brands seemed to be one and the same.