Fisher ST-640

Data

General

• Manufacturer: Fisher
• Model: ST-640
• Years of manufacture: 1976 - 1978
• Made in: Japan
• Color: Walnut
• Dimensions: 410 x 670 x 300 mm (WxHxD)
• Weight: 16.8 kg
• Original price approx.: 798 DM per piece

Technical data

• Type: 3-way, 6 speakers, closed
• Chassis:
  • woofer: 2x 254 mm cone

midrange driver: 1x 165 mm cone, 1x 127 mm cone

• • tweeter: 2x 102 mm cone
• Power handling (nominal / musical): 50 W / 70 W
• Efficiency: 90 dB / W / m
• Frequency response: 42 - 20'000 Hz
• Transitional ranges: 400 Hz, 7'000 Hz
• Impedance: 8 Ohm

Special Features

• Detachable front
• Level control for mid- and treble range

Remarks

• Other models in the same series:
• Fisher ST-430
• Fisher ST-440
• Fisher ST-460
• Fisher ST-640
• Fisher ST-660
• Fisher STE-1070
• Fisher STE-1100

Pictures

• Extract from brochure: Fisher ST-640, ST-660, STE-1070, STE-1100