Heil PR 77 Microphones are professional-quality dynamic microphone for use in commercial broadcast, recording, podcasts and any application that requires a smooth flat response over a wide frequency range, excellent transient response, great speech articulation and low IMD. These microphones are also great in Amateur Radio applications.
PR 77s achieve their exceptional performance with a large 1.5 in. low-mass voice coil encompassed by a powerful magnet structure using a mixture of neodymium, iron and boron. Additionally, special attention has been paid to the phasing plug assembly. The entire bottom of the element allows unwanted audio from the rear and sides to enter from all 360 degrees resulting in rear rejection of over -40 dB. Little to nothing is heard from the rear while the front pattern allows the user to move about freely in front of the large diameter microphone with no change in response.