Heco SM 540

Data

General

• Manufacturer: Heco
• Model: SM 540
• Type: Loudspeaker
• Years of manufacture: 1971 - 1973
• Manufactured in: Schmitten (Germany)
• Colour: Sanding varnish white, walnut, front aluminium perforated plate anodized
• Dimensions: 560 x 280 x 200 mm (HxWxD)
• Weight: 9,7 kg
• Original price approx.: 348 DM

Technical data

• Type: 3-way, 3 speakers, closed
• Chassis:
  • Low frequency: 245 mm cone

Midrange: 130 mm cone Tweeter: 25 mm dome Power handling (nominal/music): 40 W / 50 W Efficiency:

• Frequency response: 30 - 25'000 Hz
• Transitional ranges: 650 Hz, 1'600 Hz
• Impedance: 4 - 8 Ohm

Comments

• Other models in the same series:
• Heco SM 520
• Heco SM 525
• Heco SM 530
• Heco SM 535
• Heco SM 540

Pictures

• Extract from brochure: Heco SM 540