DIATONE AS-3002P Monitor-3
* Released in 1973
¥ 960,000 (1 unit, around 1979)
Commentary
A monitor speaker system with built-in amplifier developed in 1977 (1977).
It has a 30 cm cone woofer for the low range and a 5 cm cone tweeter for the high range.
The enclosure is designed with a moderate roundness to prevent degradation caused by mid-frequency diffraction.
A single push-pull system is adopted for the output stage of the amplifier section to realize clear reproduction with less notching distortion, and a constant current load system is adopted for the driver stage to improve performance by increasing driving effect.
It is equipped with a function to directly monitor the delivery from the mixing console.
Comes with a dedicated cart.
Model Rating
| Method | 2-Way, 2-Speaker, Bass Reflex System, Floor Type |
| Configuration such as unit | For low band : 30 cm cone type For high-pass : 5 cm cone type Network - High Pass Filter Amplifier : MA-100P Transistor Type Amplifier Caster : MC-1385 Type Caster |
| Playback frequency band | 50 Hz to 15 kHz |
| Reference input level | -22dBm (600 ohm balanced) |
| Input impedance | 600 Ω, 10k Ω (Balanced) |
| Crossover frequency | 1.5kHz |
| Maximum output sound pressure level | 116dB/W/m |
| Pwer | Single-phase current 100 V, 50Hz/60Hz |
| External dimensions | Width 650x Height 963x Depth 445 mm (Caster Not Included) |
| Weight | 63.5kg |
| Attachment | Dedicated cart |