Adjusting the microphone gain (not HMD 120)

MicGainAdjustment

According to JTSO approval C58a, the microphone output voltage is factory-preset to 400 mV/114

 

dB. If the microphone output voltage is too high or too low for your intercom system, it can be

 

readjusted on the microphone. To do so, use a small slotted screwdriver and turn the ‘Mic Gain

 

Adjustment’ screw (see illustration on the left) until you have reached the desired setting.

Folding up the headphones

For easy and space-saving transportation, the earcups can be folded up and tucked between the headband.

￿ Unfold the headphones by grasping both earcups and pulling them down and away from the headband.

14