The 4DLX Classic is a general aviation style headset at a price to fit any budget. The dual volume controls allow for independent volume adjustment in each ear dome and the precision flex boom, with noise canceling electret microphone, provides exact positioning.

• Wide, comfortable air-pillow headpad
• Combined liquid and foam ear seals
• Stereo/mono switchable
• Mic muff and cloth ear seal covers included
• Lightweight carrying bag included
• NRR 24dB
• Weighs 16.8 ounces
• 3-year warranty

HEADSET

• Sensitivity: 104 dB re .0002 microbar @ 1000 Hz, 1mW
• Frequency Response: 100-17,000 Hz +/- 5 dB in 6cc coupler
• Impedance: 600 ohms nominal, 150 to 1200 ohm source
• Weight: 16.8 ounces without comm cable
• Weight of comm cable: 3.1 ounces
• Shielded cable: Full floating with independent ground
• Noise Reduction Rating: 24 dB

MICROPHONE

• DC Bias Supply: 8 to 16 volts, not polarity sensitive
• Source Resistance: 220 to 2200 ohms
• Output Voltage: 370 mV @ 114 dB spl re .0002 microbar
• Frequency Response: Optimised for speech clarity and noise reduction
• Maximum Ambient Noise Level: 120 dB spl re .002 microbar