The Denali D30SP is an extremely lightweight headset that offers exceptional performance and outstanding comfort. Engineered to fit unlike any other aviation headset, the D30SP provides excellent passive noise attenuation, a secure and comfortable fit and extremely reliable performance.
Lightweight – At 11 ounces, the D30SP fixed-wing headset is the lightest model available.
Comfort – ComLeather™ ear seals help abate noise and offer a comfortable fit. The sleek ear domes stay securely in place, reducing side force.
Noise Reduction – Passive 21dB NRR rating
No Risk Warranty – Satisfaction guaranteed from ear to ear. Three year warranty.
HEADSET
- Shielding – Full floating with independent ground
- Weight – 11 oz.
- Temperature Sensitivity – Not to exceed 156°F
SPEAKERS
- Sensitivity (a1mW in dBspl) – 104dB
- Frequency Response – 90Hz-20kHz
- Impedance – 300 ohms stereo/ch.-150 ohms mono
- Total Harmonic Distortion (@1kHz) – <.15%
- Maximum Power Input – 250mW
- Noise Reduction Rating – 21dB
Microphone
- Type – Noise cancelling electret condenser with constant-gain preamp
- DC Bias Voltage – 8-16 volts
- Supply Source Resistance – 220-2200 ohms
- Frequency Response (±6dB) – 420Hz-6.4kHz
- Sensitivity (@114dBspl*) – 1.3V
- Noise Rejection Ratio (@1kHz): -46dB
- Total Harmonic Distortion (@1kHz) – <0.3%
- Impedance – 500 ohms
- Maximum Speech Level – 112 dBspl*
- Maximum Ambient Noise Level – 132 dBspl*
*Sensitivity measurements referred to 0.0002 ubar (dynes/cm2) @ 1kHz. Microphone measurements made with 10-volt supply with a 1,000 ohm resistor.
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