Audio Accessories
High-performance Sennheiser® headphones are available as an option with the following specifications:
- Frequency response: 16-22,000 Hz -3 dB
- Impedance: 70 ohms
- Sensitivity: 120 dB SPL/1mW
- Distortion: <0.3%
- Connector: 1/8" stereo phone plug
Price: $500
An integrated Boom Microphone is also available as an option for the nVisor.
- Dynamic, Close-Talking
- Frequency Response: 350 Hz to 6300 Hz
- Sensitivity @ 1 KHz: -70 dB +/- 5 dB
- Impedance: 150 Ohms +/- 20%
- Connector: 1/8" stereo phone plug
Price: $500
A complete audio upgrade that includes both headphones and microhphone is also available. The complete audio upgrade is available with either a dynamic or electret microphone at the same price.
Headphone specification w/ integrated electret microphone:
- Frequency response: 30-16,000 Hz
- Impedance: 600 ohms
- Characteristic SPL: 102 dB +/- 3 dB at 1 kHz, 1mW
- Distortion: < 1%
Electret Microphone specification:
- Back-electret condenser
- Frequency response: 40 - 20,000Hz
- Pickup pattern: omni-directional
- Min. terminating impedance: 4700 ohms
- Operating Voltage: 5-15 V DC
- Connector: 1/4" phone plug w/ adaptor for 1/8" mini phone jack
Headphone specification w/ integrated dynamic microphone:
- Frequency response: 20–16,000 Hz
- Impedance: 600 ohms
- Characteristic SPL: 102 dB +/- 2 dB at 1 kHz, 1mW
- Distortion: < 1%
Dynamic Microphone specification:
- Dynamic
- Frequency response: 100–16,000 Hz
- Pickup pattern: super-cardioid
- Min. terminating impedance: 1000 ohms
- Connector: 1/4" phone plug w/ adaptor for 1/8" mini phone jack
