Electro Voice Interface Gamma

Data

General

• Manufacturer: Electro Voice
• Model: Interface Gamma
• Years of manufacture: ca. 1981-1982
• Manufactured in: Nidau/Switzerland
• Colour: walnut or oak veneer
• Dimensions: 815 x 500 x 305 mm (HxWxD)
• Weight: 28 kg
• Original price approx.: DM (pair with equalizer)

Technical Data

• Type: 3-way, ventilated, floorstanding speaker
• Chassis:
  • Woofer: 1x 254 mm

Midrange driver: 1x 165 mm Tweeter: 1x Super-Dome 38mm dome with acoustic lens

• Power handling (nominal/music): 25W / 350W max.
• Efficiency:
• Sound pressure:
  • 93 dB (1 m/1 W input).

101 dB peak (3.6 W input) 111 dB peak (25 W input) 118 dB peak (250 W peak input) Frequency Response:

• • 30 - 18000 Hz (±2.5 dB).

25 - 20000 Hz (DIN)

• Transition Ranges: 42 Hz (Acoustic) / 400 Hz (Electric) / 2500 Hz (Electric)
• Beam angle:
  • 160 degrees (±8 degrees) at 500 - 4000 Hz.

90 degrees (at 8000 Hz) 75 degrees (at 12500 Hz) Impedance: 6 ohms (nominal) / 4 ohms (min.)

Special Features

• Successor of the Interface C, with new tweeter

• external equalizer CH-2560 to influence the treble filter slope (0/-3/-6 dB from 10kHz):
• dimensions: 205 x 65 x 155 mm (WxHxD).
• distortion max. 0.005% (20-20000 Hz, 1V)

Remarks

Other models of the same series:

• Interface Alpha
• Interface Beta
• Interface Delta

Pictures