SONY DR-A90C
¥ 9,800 (around 1987)
Commentary
A headphone with microphone equipped with a small and highly sensitive back electret condenser microphone mounted on the left and right units.
It uses a binaural recording method that enables sound recording with a rich sense of realism by capturing sound at the position of the ear.
It uses a vertical in-phase system and a two way power system that does not require a battery.
It can be folded, and the volume of the headphones can be adjusted and the microphone can be turned on / off at the chest.
.jpg)
Model Rating
| Type | Open air dynamic type |
| Units Used | Φ 16 mm Dome Type (TURBO) |
| Impedance | 18 Ω |
| Sensitivity | 108dB/mW |
| Max Input | 50mW |
| Playback frequency | 18 to 20 kHz |
| Weight | 15g (cord not included) |
| Cord Length | 1.5m OFC Litz wire |
| Plug | Two L-type stereo mini-plugs |
| Accessories | Microphone stand Soft case |