• Country
• Germany

• Manufacturer / Brand
• Beyer; Berlin, später Beyerdynamic; Heilbronn

• Year
• 1950 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 123203

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Various materials

• from Radiomuseum.org
• Model: Vielzellen - Kinolautsprecher KL4 - Beyer; Berlin, später

• Dimensions (WHD)
• 1750 x 1750 x 800 mm / 68.9 x 68.9 x 31.5 inch

• Notes
• Vielzellen-Kinolautsprecher. Frequenzbereich: 30-16000 Hz. Tiefton: Exponentialhorn, Hochton: Vierzellen-System, acht Kanäle; Strahlwinkel: 70 Grad horizontal, 40 Grad vertikal; Wirkungsgrad gegenüber Konuslautsprecher: ca. 4-5-fach; Belastbarkeit: 40 Watt; Anpassung: 15 Ohm.

• Net weight (2.2 lb = 1 kg)
• 140 kg / 308 lb 5.9 oz (308.37 lb)

• Mentioned in
• -- Original prospect or advert (Beyer 1950)

• Author
• Model page created by Karlheinz Fischer. See "Data change" for further contributors.

• Other Models

• Here you find 151 models, 142 with images and 57 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Beyer; Berlin, später Beyerdynamic; Heilbronn