To effer's list, I would add:Saul MarantzHenry KlossAvery FisherEdward VilchurPeter WalkerJon DahlquistRichard SequerraJohn CurlBruce MooreConrad and Johnson
Arnold Nudell....and this only gets us up to about 1980, and I've undoubtedly left out some great designers, thinkers, and all around eccentrics that have made this hobby a labor of love.