Standard-Lautsprecher P25/31/11

Isophon, E. Fritz & Co. GmbH.; Berlin

  • Year
  • 1953 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 246053
    • Brand: Isophon

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 24.5 cm = 9.6 inch
  • Power out
  • 10 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Standard-Lautsprecher P25/31/11 - Isophon, E. Fritz & Co. GmbH.;
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 245 x 245 x 31 mm / 9.6 x 9.6 x 1.2 inch
  • Notes

  • Rundes Breitband-Lautsprecherchassis ohne Trafo; Impedanz: 4 Ω; Ausgangsleistung bis 10 Watt; Frequenzbereich: 50...13.000 Hz; Eigenresonanz: 60 Hz; Magnetsystem: AlNiCo, 11.000 Gauss, Spalttiefe: 8 mm, Kerndurchmesser: 31 mm.
    Empfohlene Trafos: El62/25 {8,50 DM} oder M65 {14,50 DM}.

  • Net weight (2.2 lb = 1 kg)
  • 2.460 kg / 5 lb 6.7 oz (5.419 lb)
  • Price in first year of sale
  • 59.00 DM
  • Mentioned in
  • -- Original prospect or advert
  • Author
  • Model page created by Michael Mischke. See "Data change" for further contributors.

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