Electro-Voice Interface:D
¥ 300,000 (1 unit, around late 1970 s)
Commentary
This speaker system is the top-of-the-line in the Interface series.
A 30 cm cone type woofer is installed in the low range.
This unit is mounted downward based on the theory of optimal phase inversion.
The mid-range is equipped with 16 cm cone type mid-range.
The magnetic circuit of this unit uses a huge 7.3 kg magnet assembly, same as the woofer.
A radial horn type tweeter with a radiation angle of 110 degrees or more in the ultra-high band of 16 kHz is mounted in the high band.
Built-in protection circuit for the tweeter.
SEQ equalizer is included.
.JPG)
Model Rating
| Method | 3-way, 3-speaker floor type |
| Unit | For low band : 30 cm cone type For Medium Range : 16 cm cone type For High Frequency : Horn Type |
| Frequency characteristic | 23 Hz to 20 kHz 28 Hz to 18 kHz ± 4 db |
| Output sound pressure level | 97dB/W/m |
| Impedance | 8 Ω |
| Maximum allowable input | 50W (long average) 500W (peak) |
| Crossover frequency | 350 Hz, 3 kHz |
| External dimensions | Width 552x Height 812x Depth 394 mm |
| Weight | 51.8kg |
| Attachment | SEQ equalizer |