• Country
• Germany

• Manufacturer / Brand
• All-Akustik, Vertriebs-GmbH & Co. KG; Hannover

• Year
• 1989–1992

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 193894

• • Brand: Quadral

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• 4 Loudspeakers

• Material
• Wooden case

• from Radiomuseum.org
• Model: Quadral Phonologue Montan MK IV - All-Akustik, Vertriebs-GmbH &

• Shape
• Console with any shape - in general

• Dimensions (WHD)
• 350 x 1160 x 400 mm / 13.8 x 45.7 x 15.7 inch

• Notes
• 4-Wege Standlautsprecher, Transmission-Line,
  Tieftöner 1 x 260 mm,
  Tief-Mitteltöner 1 x 220 mm,
  Mitteltöner 1 x 110 mm,
  Hochtöner 1 x 19 mm Titan-Kalotte,
  Belastbarkeit 170/250 W, Wirkungsgrad: 88 dB/1W/1m,
  Frequenzgang: 25-25.000 Hz +/- 2 dB,
  Übergangsfrequenzen der Weiche: 150/500/3500 Hz, Impedanz 4 Ohm.

• Net weight (2.2 lb = 1 kg)
• 55 kg / 121 lb 2.3 oz (121.145 lb)

• Price in first year of sale
• 1,998.00 DM

• Source of data
• - - Data from my own collection

• Author
• Model page created by Felix Kreitlow. See "Data change" for further contributors.

• Other Models

• Here you find 30 models, 30 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from All-Akustik, Vertriebs-GmbH & Co. KG; Hannover