Electro Voice Interface Delta specifications

Category : Speakers

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Tech nical data

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• Manufacturer: Electro Voice
• Model: Interface Delta
• Years of construction: ca. 1981-1982
• Manufactured in: Nidau/Switzerland
• Color: Walnut or oak veneer
• Dimensions: 820 x 550 x 395 mm (HxWxD),
• Weight: 52 kg
• Factory price approx.: DM (pair with equalizer)

• Type of construction: 3-way, ventilated, floorstanding speaker
• Chassis:
  • Woofer: 1x 305 mm
  • Midrange driver: 1x 165 mm
  • Tweeter: 1x Radial horn ST350A
• Load capacity (nominal/music b.): 25 W / 500W max
• Efficiency:
• Sound pressure:
  • 97 dB (1 m/1 W input)
  • 103 dB peak (3.6 W input)
  • 115 dB peak (25 W Input)
  • 120 dB peak (500 W peak input)
• Frequency response:
  • 28 - 18,000 Hz (±2.5 dB)
  • 23 - 20,000 Hz (DIN)
• Transition ranges: 40 Hz (acoustic) / 350 Hz (electric) / 3,000 Hz (electric)
• Beam angle:
  • 170 degrees (±5 Degrees) at 500 - 1,000 Hz
  • 115 degrees (±10 degrees) at 2,000 - 16,000 Hz
  • 110 degrees (at 16,000 Hz)
• Impedance: 8 ohms (nominal) / 5 ohms (min.)

• Woofer: 1x 305 mm
• Midrange driver: 1x 165 mm
• Tweeter: 1x Radial horn ST350A

• 97 dB (1 m/1 W input)
• 103 dB Peak (3.6 W input)
• 115 dB peak (25 W input)
• 120 dB peak (500 W peak input)

• 28 - 18,000 Hz (±2.5 dB)
• 23 - 20,000 Hz (DIN)

• 170 degrees (±5 degrees) at 500 - 1.000 Hz
• 115 degrees (±10 degrees) at 2.000 - 16.000 Hz
• 110 degrees (at 16.000 Hz)

• external equalizer CH-2560 to adjust the height filter slope steepness (0/-3/-6 dB from 10 kHz):
  • Dimensions: 205 x 65 x 155 mm (WxHxD)
• Distortions max. 0.005% (20 - 20,000 Hz, 1 V)

• Dimensions: 205 x 65 x 155 mm (WxHxD)

• Successor of the Interface D.
• Other models of the same series:
  • Interface Alpha
  • Interface Beta
  • Interface Gamma

• Interface Alpha
• Interface Beta
• Interface Gamma

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