• Country
• Great Britain (UK)

• Manufacturer / Brand
• Tannoy Products Ltd.; London

• Year
• 1982–1987

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 173703

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 15 inch = 38.1 cm

• Power out
• 200 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: GRF Memory M - Tannoy Products Ltd.; London

• Shape
• Console with any shape - in general

• Dimensions (WHD)
• 31.5 x 43.25 x 19 inch / 800 x 1099 x 483 mm

• Notes
• Floor standing compound horn loudspeaker box with one dual-concentric driver 3839M and cross-over 1015 @1kHz. 200W RMS(!), impedance 8Ω, frequency response 29Hz-20kHz.
  Finish walnut, alternative cork. Grill cloth oatmea.
  "GRF" means "Guy R. Fontain", the founder of Tannoy. This is one of several "GRF memory" models.

• Net weight (2.2 lb = 1 kg)
• 137 lb (137 lb 0 oz) / 62.198 kg

• Author
• Model page created by Georg Richter. See "Data change" for further contributors.

• Other Models

• Here you find 51 models, 18 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tannoy Products Ltd.; London