ESPRIT APM-4
¥ 270,000 (1 unit, released in 1983)
Commentary
This is an APM speaker system that uses a curved top plate and base plate to further develop the Super Oval Enclosure, whose effectiveness was demonstrated with the APM-6Monitor.
530 cm in the lower range2Equipped with a flat woofer and 27 cm in the middle area.2Flat mid-range, 7 cm high range2Equipped with a planar type tweeter.
The enclosure is a super-oval enclosure to prevent sound diffraction.
In addition, the top plate and base plate of APM-4 are also curved shapes, so that diffraction can be suppressed more, and good sound field reproduction and flat sound pressure characteristics are realized.
Comes with a dedicated speaker stand that has been carefully selected in terms of sound quality and design.
Model Rating
| Method | 3-Way, 3-Speaker, Bass Reflex System, Floor Type |
| Unit | For low band : 530 cm2Plane type For Medium Range : 27 cm2Plane type For high frequency : 7 cm2Plane type |
| Playback frequency band | 25 Hz to 30000 Hz |
| Output sound pressure level | 90dB/W/m |
| Impedance | 6 Ω |
| Maximum instantaneous input level | 200W |
| Rated input level | 100W |
| Crossover frequency | 600 Hz, 4500 Hz |
| External dimensions | Width 545x Height 895x Depth 345 mm |
| Weight | 45.0kg |
| Attachment | Speaker stand |