09168P33 - David Clark Headset Microphone M7A
The 09168P33 David Clark Headset Microphone M7A is a high-quality, noise-cancelling electret microphone designed for use in aviation communication systems. This microphone is a direct replacement for older carbon and amplified dynamic microphones, offering superior performance by providing clear and crisp voice transmission. It features noise-cancelling technology, effectively reducing background noise up to 25 dB, making it ideal for use in high-noise environments like aircraft cockpits.
Key Specifications:
- Model: M-7A
- Type: Electret noise-cancelling microphone
- Impedance: 150 ohms ± 20 ohms
- Frequency Response: 100 Hz to 10,000 Hz
- Sensitivity: 86 dB - 98 dB at 1.0 kHz / 94 dB input
- Operating Voltage: 9-28V DC (requires a DC bias voltage)
- Operating Temperature Range: -55°C to +85°C
- Noise Cancellation: Minimum 15 dB, Maximum 25 dB
- Weight: Approximately 4.5 to 6.0 grams
- Color: Lusterless black
The M7A is compatible with all David Clark headsets equipped with a flex boom and is field-replaceable. It is widely used in aviation for its reliable performance and durability, ensuring clear communication in demanding environments