The Sony MDR-7509HD is an around-the-ear professional headphone that is ideal for sound monitoring in recording studios, radio, film production, video and virtually any application where high quality audio delivery is required.
The MDR-7509HD features large, 50mm driver units and amorphous diamond evaporated diaphragms, providing extended frequency reproduction and dynamic range, high power handling and the extended LF reproduction required by high res, high-definition recording systems. The MDR-7509HD is equipped with reversible ear cups for single sided monitoring, and a foldable design allows for convenient storage and transportation.
| Type | Circumaural, Closed-Back |
| Frequency Range | 5Hz - 80kHz |
| Impedance | 24 Ohms |
| Sensitivity | 107dB |
| Maximum Input Power | 3000mW |
| Connectors | Gold-Plated 3.5mm Stereo Mini Plug with 1/4" Adapter |
| Cable Length | 10' (3 m) |
| Weight | 10.6 oz (300g) |