Heil Sound PRO 7 IC
High-quality headset with external noise reduction
WARNING!!! The AD-1-IC8 adapter cable is NOT included in the offer
Heil 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 of external noise reduction and offer exceptional comfort. A true dual-channel stereo headset, the Pro 7 features an audio balance control that allows the user to adjust the left earphone level to match the right.
A unique phase reversal switch greatly helps the listener "dig out" weak signals.
The latest version of Pro 7 features a monitor jack, allowing a second operator to plug in headphones and monitor the audio.
The Pro 7's flexible gooseneck microphone boom can be rotated for use on the right or left ear.
Two production versions are available, depending on whether a dynamic or electret microphone element is required.
However, the microphone elements are easily interchangeable, allowing you to swap elements for use with different rigs or for contest or DX purposes. Check out the different element options here.
Heil Pro 7 headsets will work with current AD-1 series adapter cables and accessories. Please consult our Adapter Selector to find the right cable for your radio. The Pro 7 is available with a dynamic electret or iC element.
The Pro 7 is available with a dynamic electret or iC element. Additional or replacement elements, including the HC-74 Contest/DX element, can be purchased separately here. All Pro 7 models are available in black, blue or red finishes and include the following accessories:
- Large PTT switch.
- Military straight cable.
- Military coiled cable.
- Extra set of ear pads.
- Removable and washable cotton ear covers.
The balance control located on the left speaker controls the left speaker.
To use, set a comfortable right-side level with the receiver's AF gain. You can then adjust the left-side speaker as needed to balance the audio between the speakers.
In most cases, the balance control will be near maximum.
The Pro 7 Dynamic features a low-distortion HC-7 dynamic microphone element designed to work with most radio equipment, including Kenwood and Yaesu.
The HC-7 shows a frequency response of 100 Hz – 12 kHz with -3dB points at 100 Hz and 12 kHz.
The traditional Heil speech articulation boost is centered at 2KHz - 4KHz with adequately balanced highs and lows.
Impedance is 600 ohms.
The HC-7 is one of our best microphones for speech articulation.
Note: To use dynamic microphone elements on vintage radios (which require a high impedance input of 10k to 30k ohms), an XT-1 impedance matching transformer will be required.
The Pro 7 iC comes with the Heil iC electret microphone element designed to work with ICOM radios.
The iC element uses bias power in ICOM radios, addressing the low gain issues that occur when using dynamic elements. The -3dB points are fixed at 80 Hz and 12.5 kHz. The iC element requires a +5 volt DC bias supply, provided by all ICOM rigs. iC adapters do not have an internal DC blocking capacitor, so the bias voltage can be transmitted, allowing the iC electret element to operate.
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
