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Heil PRO7 Black

PRO 7 (Black)

345,00 314,00 U bespaart: 9%

Generating Element: Dynamic iC | iC Electret
Frequency Response: 100 Hz – 12 kHz |35 Hz – 12 kHz
Polar Pattern: Cardioid |Cardioid
Impedance: 600 Ohms |1.5 k ohms
Output Level: -57 dB at 1 kHz |-48dB at 1 kHz
Weight: 17 oz |17 oz
Required Adapter: AD-1 Series |AD-1 series (AD-1-iC included)

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.

Designed exclusively for iCOM radios, the iC Electret element has a -3dB fixed point at 35 Hz and 12kHz with the sensitivity of-48 at 1500 ohms output centered at 1kHz. The iC element solves the problems with LOW GAIN ICOM radios but can also work with great results on newer iCOM models. Bias power is applied to operate the iC electret element. The Pro 7 iC is supplied with our ADl-iC eight pin iCOM adapter cable.

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. Check it out here!

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 and Pro 7iC each are available in black, red, blue or pink finishes and includes the following accessories:

  • PTT Switch.
  • Military grade straight cable.
  • Military grade coiled cable.
  • Extra set of ear pads.
  • Washable cotton ear pad covers.

The balance control located on the LEFT speaker, controls only the left speaker. Begin by setting a comfortable right side speaker level with the AF gain of the receiver. You 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 or maximum.

Suggested DSP Settings

Suggested DSP settings for the Pro 7. These are simply starting points. Best results are had by

listening to a second receiver through headphones. You will start each transmitter adjustment

by setting the transmit bandwidth. In many cases, with the proper transmit bandwidth you

will need little to no EQ adjustments, if anything, a minor mid range boost.

First, set the transmit bandwidth at 200 - 2800. This will

roll off some of the extreme low frequency response.

You may be able to adjust to 100 as long as it doesn’t

overload and sound too bassy.

Second, you need a Parametric EQ (3 band) to be able

to adjust the parameters of the microphone audio. All

of the late models use the exact same Parametric. Only

the menu assignment numbers change but here are

the starting points for the three filters. After setting,

save your settings by holding the Menu button for 3


Frequency 200 Hz

Notch or Boost cut -15 dB

Bandwidth 5

Yaesu Filter 1

Frequency 400 Hz

Notch or Boost cut -6 dB

Bandwidth 5

Filter 2

Frequency 2400 Hz

Notch or Boost boost +8 dB

Bandwidth 10

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