Electro-Voice Interface:1
¥ 35,000 (1 unit, around late 1970 s)
Commentary
This speaker system was developed based on the theory of Electrovoice's "interface-based optimal phase inversion system".
A 20 cm cone woofer is installed in the low range and a 6 cm tweeter is installed in the high range.
These units are identical to the high-end Interface : AII and Interface : BII of the Interface Series.
The enclosure is designed with a bass reflex.
Model Rating
| Method | 2-Way, 2-Speaker, Bass Reflex System, Bookshelf Type |
| Unit | For low band : 20 cm cone type High-pass : 6 cm |
| Frequency characteristic | 44 Hz to 20 kHz 54 Hz to 18 kHz ± 4 dB |
| Output sound pressure level | 92dB/W/m |
| Impedance | 8 Ω |
| Maximum allowable input | 20W (long-term average) 200W (peak) |
| Crossover frequency | 1.5kHz |
| External dimensions | Width 292x Height 539x Depth 267 mm |
| Weight | 10.4kg |