Braun LE1
The Braun LE1, Loudspeaker Unit 1, was the first electrostatic loudspeaker available on the German hi-fi market. German electronics company Braun started production in 1960 with the technology licensed from the British Acoustical Manufacturing Co. Ltd..
The electronics inside were very similar to QUAD's famous Quad [Electrostatic Loudspeaker|ESL-57], however there were differences. While the stators were identical, the transformers and high voltage cascade were specially developed by Braun.
The loudspeakers were fed the audio signal plus a 220 Volt power supply by a special 4-wire cable using any of the following Braun tube amplifiers:
- CV11
- CSV13 and CSV60.