Difference between revisions of "Electro Voice Interface Alpha"

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== Daten ==
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__NOTOC__
{{Navigation}}
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== Data ==
'''Allgemein'''
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{{navigation}}
* Hersteller: [[Electro Voice]]
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'''General'''
* Modell: Interface Alpha
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* Manufacturer: [[Electro Voice]]
* Baujahre: ca. 1981-1982
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* Model: Interface Alpha
* Hergestellt in: Nidau/Schweiz
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* Years of manufacture: ca. 1981-1982
* Farbe: Nußbaum oder Eiche Furnier
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* Manufactured in: Nidau/Switzerland
* Abmessungen: 625 x 390 x 210 mm (HxBxT)
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* Colour: walnut or oak veneer
* Gewicht: 14 kg
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* Dimensions: 625 x 390 x 210 mm (HxWxD)
* Neupreis ca.: 1950,- DM (Paar mit Equalizer)
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* Weight: 14 kg
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* Original price approx.: 1950,- DM (pair with equalizer)
  
  
'''Technische Daten'''
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'''Technical data'''
* Bauart: 2-Wege, geschlossen mit Passivstrahler, Regal/Standlautsprecher
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* Type: 2-way, closed with passive radiator, shelf / floorstanding speaker
* Chassis:
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* drivers:
** Tieftöner: 1x 305 mm (Passivmembran)
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** woofer: 1x 305 mm (passive cone).
** Mittel-/Tieftöner: 1x 203 mm
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** midrange / bass driver: 1x 203 mm
** Hochtöner: 1x Super-Dome 38mm Kalotte mit akustischer Linse
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Tweeter: 1x Super-Dome 38mm dome with acoustic lens
* Belastbarkeit (Nenn-/Musikb.): 25W / 250W max
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* Power handling (nominal/music): 25W / 250W max.
* Wirkungsgrad:
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* Efficiency:
* Schalldruck:
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* Sound pressure:
** 92 dB (1 m/1 W Input)
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** 92 dB (1 m/1 W input).
** 100 dB Peak (3.6 W Input)
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100 dB peak (3.6 W input)
** 108 dB Peak (25 W Input)
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108 dB peak (25 W input)
** 118 dB Peak (250 W Peak-Input)
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118 dB Peak (250 W Peak Input)
* Frequenzgang:
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* Frequency Response:
** 30 - 18000 Hz (±2.5 dB)
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** 30 - 18,000 Hz (±2.5 dB).
** 29 - 20000 Hz (DIN)
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29 - 20,000 Hz (DIN)
* Übergangsbereiche: 49 Hz (akustisch) / 1500 Hz (elektrisch)
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* Transition Ranges: 49 Hz (Acoustical) / 1,500 Hz (Electrical).
* Abstrahlwinkel:
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* Dispersion angle:
** 125 Grad (±30 Grad) bei 500 - 8000 Hz
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** 125 degrees (±30 degrees) at 500 - 8,000 Hz.
** 75 Grad (bei 12500 Hz)
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75 degrees (at 12,500 Hz)
* Impedanz: 8 Ohm (nominal) / 5 Ohm (min.)
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* Impedance: 8 ohms (nominal) / 5 ohms (min.)
  
  
'''Besondere Ausstattungen'''
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'''Special Features'''
* Nachfolger der Interface A, mit neuem Hochtöner
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* Successor of the [[Electro Voice Interface A|Interface A]], with new tweeter.
* Unterschied zur Beta: als Regalbox konzipiert, Anordnung der Systeme im Gehäuse
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* Difference to the Beta => designed as a shelf speaker, arrangement of the systems in the cabinet
* Aufsteller BBR-2, um die Box als Standlautsprecher zu verwenden
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* stand BBR-2, to use the speaker as a floorstanding speaker
* externer Equalizer (hergestellt in Nidau CH-2560), um die Höhenfilter Flankensteilheit (0/-3/-6 dB ab 10kHz) zu beeinflussen:
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* external equaliser (made in Nidau CH-2560) to attenuate the treble: slope 0/-3/-6 dB above 10kHz
* Abmessungen: 205 x 65 x 155 mm (BxHxT)
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* dimensions: 205 x 65 x 155 mm (WxHxD)
* Verzerrungen max. 0.005% (20-20000 Hz, 1V)
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* Distortion max. 0.005% (20-20.000 Hz, 1V)
  
== Bemerkungen ==
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== Remarks ==
Weitere Modelle der gleichen Serie:
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* Other models in the same series:
* [[Electro Voice Interface Alpha|Interface Alpha]]
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* [[Electro Voice Interface Beta]]
* [[Electro Voice Interface Beta|Interface Beta]]
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* [[Electro Voice Interface Gamma]]
* [[Electro Voice Interface Gamma|Interface Gamma]]
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* [[Electro Voice Interface Delta]]
* [[Electro Voice Interface Delta|Interface Delta]]
 
  
== Bilder ==
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* European-made Interface Alpha is largely the same as the American-made Interface A series 3.
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(power supply of the equalizer however 220V instead of 110/120V)
  
== Berichte ==
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* Getestet in dt. HiFi-Fachzeitschrift Stereoplay 5/1981 (einer der vier Testsieger)
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== Pictures ==
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== Reports ==
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Tested in German HiFi magazine Stereoplay 5/1981 (one of the four test winners)
  
 
== Links ==
 
== Links ==
* [http://www.hifi-studio.de/hifi-klassiker/EV_Interface-A/EV_Interface-A.htm Daten und Bilder]
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* [https://web.archive.org/web/20120513212823/http://www.hifi-studio.de/hifi-klassiker/EV_Interface-A/EV_Interface-A.htm data and pictures] at HiFi Studio
[[Kategorie:Lautsprecher]]
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[[Category:Loudspeaker]]

Latest revision as of 07:36, 19 August 2019

Data[edit]

General

  • Manufacturer: Electro Voice
  • Model: Interface Alpha
  • Years of manufacture: ca. 1981-1982
  • Manufactured in: Nidau/Switzerland
  • Colour: walnut or oak veneer
  • Dimensions: 625 x 390 x 210 mm (HxWxD)
  • Weight: 14 kg
  • Original price approx.: 1950,- DM (pair with equalizer)


Technical data

  • Type: 2-way, closed with passive radiator, shelf / floorstanding speaker
  • drivers:
    • woofer: 1x 305 mm (passive cone).
    • midrange / bass driver: 1x 203 mm

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

  • Power handling (nominal/music): 25W / 250W max.
  • Efficiency:
  • Sound pressure:
    • 92 dB (1 m/1 W input).

100 dB peak (3.6 W input) 108 dB peak (25 W input) 118 dB Peak (250 W Peak Input)

  • Frequency Response:
    • 30 - 18,000 Hz (±2.5 dB).

29 - 20,000 Hz (DIN)

  • Transition Ranges: 49 Hz (Acoustical) / 1,500 Hz (Electrical).
  • Dispersion angle:
    • 125 degrees (±30 degrees) at 500 - 8,000 Hz.

75 degrees (at 12,500 Hz)

  • Impedance: 8 ohms (nominal) / 5 ohms (min.)


Special Features

  • Successor of the Interface A, with new tweeter.
  • Difference to the Beta => designed as a shelf speaker, arrangement of the systems in the cabinet
  • stand BBR-2, to use the speaker as a floorstanding speaker
  • external equaliser (made in Nidau CH-2560) to attenuate the treble: slope 0/-3/-6 dB above 10kHz
  • dimensions: 205 x 65 x 155 mm (WxHxD)
  • Distortion max. 0.005% (20-20.000 Hz, 1V)

Remarks[edit]

  • European-made Interface Alpha is largely the same as the American-made Interface A series 3.

(power supply of the equalizer however 220V instead of 110/120V)


Pictures[edit]

Reports[edit]

Tested in German HiFi magazine Stereoplay 5/1981 (one of the four test winners)

Links[edit]