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Interchangeable capsule for Opus 900 handheld transmitters S 900, S 900 C, and S 900 M
With Opus 81 microphone capsule (back electret condenser, cardioid)
Switchable low-cut filter to compensate the close-miking effect
Silver grill
Built-in metal gaze pop shield without any foam material
| Polar pattern | Cardioid |
| Transducer type | Condenser (back electret) |
| Max. SPL | 146 dB |
| Frequency response | 50-18,000 Hz at 80 dB SPL |
| Rear attenuation | -15 dB at 1 kHz/180° |