Sonofer SF 4

Data

General

• Manufacturer: Sonofer
• Model: SF 4
• Year of manufacture: 1988 - 1992
• Manufactured in:
• Color: sanded black, sanded white, rustic oak, light oak, walnut, mahogany, for an additional charge piano black, piano white, others on request.
• Dimensions: 220 x 850 x 250 mm (W x H x D)
• Weight: 16,7 kg
• Original price approx.: 2500,- DM (UVP pair)

Technical data

• Type: 2 1/2-way floorstanding speaker
• Chassis:
  • Low frequency: 180 mm

Low-midrange: 180 mm Tweeter: 19 mm aluminium-manganese dome, from 1991 25 mm fabric dome

• Power handling (nominal/music): 150/200 Watt

efficiency: 86 dB

• Frequency response: 26 - 30,000 Hz
• Transitional ranges: (for LS with multiple drivers).
• Impedance: 4 Ohm

Special equipment

• list here

Remarks

Other models in the same series:

• SF 2
• SF 4
• SF 5
• SF 6
• SF 8

Pictures