The Pro 7 offers a feature set that compliments the Heil Sound standard for headset design. Unlike copies of various aviation type headsets, the PRO 7 is not a copy. It brings new technology to the headset industry. The 2″ thick gel foam ear pads provide extreme comfort for extended periods of time while exhibiting passive noise reduction rated at -26dB, ideal for use in high ambient noise environments. Using technology Bob Heil learned from Paul Klipsch back in the early 70’s, the ear cup enclosures were tuned to the free air cone resonance of the speaker cone thus providing very low distortion with maximum voice articulation providing the ultimate sound reproduction for communications. The exclusive Heil Phase Reversal system (HPR) allows you to acoustically move the signals forward and creates a spatial widening of the sound field. This feature makes it easier to pull a weak signal from a pileup – useful for DxPeditions and contests as well as a stress reliever as your change the phase angle of the program source. A speaker balance control allows preferred level between the speakers.
The PRO 7 has an interchangeable microphone system, which allows the microphone element to be easily changed in the field for different types of applications.
The low distortion Dynamic HC-7 element exhibits a frequency response of 100 Hz – 12 kHz with the -3dB points at 100 Hz and 12 kHz. The traditional Heil speech articulation rise is centered at 2K -4KHz with properly balanced highs and lows. The impedance is 600 ohm. The HC-7 is one of our best microphone elements for speech articulation.
For the serious contest/DX operators they can upgrade to the The HC-74 (orange), which is a redesign of the popular HC-4 element. This element is sold separately. It rolls off the low end at 600 Hz with a 10 dB rise at 2500-3000 Hz, which creates a very articulate signal to break through pileups.
The latest version of the Pro 7 features a monitor jack. The monitor feature allows a second operator to plug in headphones to the Pro 7 to monitor audio.
The Pro 7 are available in black, red or blue finishes and includes the following accessories:
Military grade straight cable.
Military grade coiled cable.
Extra set of ear pads.
Washable cotton ear pad covers.
Generating Element: Dynamic
Frequency Response: 100 Hz – 12 kHz
Polar Pattern: Cardioid
Impedance: 600 Ohms
Output Level: -57 dB at 1 kHz
Weight: 17 oz
Required Adapter: AD-1 Series