Difference between revisions of "Electro Voice Interface Alpha"
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| − | == | + | __NOTOC__ |
| − | {{ | + | == Data == |
| − | ''' | + | {{navigation}} |
| − | * | + | '''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 - | + | ** 30 - 18,000 Hz (±2.5 dB). |
| − | + | 29 - 20,000 Hz (DIN) | |
| − | * | + | * Transition Ranges: 49 Hz (Acoustical) / 1,500 Hz (Electrical). |
| − | * | + | * Dispersion angle: |
| − | ** 125 | + | ** 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 [[Electro Voice Interface A|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 == | ||
| + | * Other models in the same series: | ||
| + | * [[Electro Voice Interface Beta]] | ||
| + | * [[Electro Voice Interface Gamma]] | ||
| + | * [[Electro Voice Interface Delta]] | ||
| − | * | + | * 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 == | |
| − | |||
| − | |||
| − | == | + | == Reports == |
| − | + | 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 | + | * [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 |
| − | [[ | + | |
| + | [[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]
- Other models in the same series:
- Electro Voice Interface Beta
- Electro Voice Interface Gamma
- Electro Voice Interface Delta
- 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]
- data and pictures at HiFi Studio