The Heil PRO-SET-6 is a versatile headset featuring the HC-6 element, known for its wide frequency range and compatibility with modern transceivers equipped with adjustable EQ settings. This unique feature allows users to optimize the frequency response to suit their voice and operating environment, enhancing overall audio quality. They are designed explicitly for multimode rigs like the Yaesu FT-450/847/857/897, the Kenwood TS-2000, or the Icom 746Pro. The Pro Set 6 offers superior fidelity on FM compared to its predecessor, the Pro Set 5.

In addition to its exceptional noise isolation capabilities, the Heil PRO-SET-6 now incorporates Heil Sound's proprietary phase reversal technology. By utilizing the phase-reversal switch, users can manipulate the incoming signal to create a spatial widening effect, which can be particularly beneficial in challenging communication scenarios such as DX pile-ups. This innovative feature sets the Pro Set 6 apart by offering a unique audio enhancement option for users seeking improved clarity and reception.

Key features of the Hil PRO-SET-6 include a standard low-impedance dual earpiece headset with padded earpieces, an adjustable headband, a 2K Ohm cardioid dynamic microphone, and the option to choose between standard or DX inserts. The headset also comes equipped with a fully adjustable boom, a 1/4-inch stereo jack for the earphone, and a 3.5mm plug for the microphone (compatible with AD-1 adaptors). It requires an AD-1 series mic adaptor for operation.