Andrew Kim wrote an excellent review of Braun’s beautiful, 51-year-old “Phonosuper”:
This is it, the SK55 is my all time favorite product and there’s nothing in the world more important for me to share on this website than this. The Braun SK55, or the SK4 to be more specific, is in my opinion, the most important product in Braun’s history and therefore the most important product to the design of electronics today.