HEIL SOUND PRO 7 - DYNAMIC ELEMENT
The Heil Sound Pro 7 is an aviation-style headset designed for amateur radio use in high noise environments.

The specially designed foam-gel ear pads provide 26 dB outside noise reduction and provide exceptional comfort. A true dual channel, stereo headset, It features an audio balance control which allows the user to adjust the level of the left earphone to match the right. A unique phase-reversal switch greatly helps the listener “dig out” weak signals. The latest version of the Pro 7 features a monitor jack which allows a second operator to plug in headphones and monitor audio.

The flexible gooseneck mic boom on Pro 7s may be rotated for use on either the right or left ear.

The balance control located on the left speaker controls the left speaker. To use, set a comfortable right side level with the AF gain of the receiver. You can then adjust the left side speaker where necessary to balance the audio between the speakers. In most cases, the balance control will be close to maximum.

Features

Generating Element: Dynamic
Frequency Response: 100Hz – 12kHz
Polar Pattern: Cardioid
Impedance: 600 ohms
Output Level: -57dB at 1kHz
Weight: 17oz