Description
The Heil PR 77D brings broadcast-console polish to any signal chain that needs a dynamic mic capable of handling loud, transient-rich sources with total clarity. At its core sits a large 1-inch, low-mass voice coil driven by a neodymium-iron-boron magnet, giving the PR 77D a fast transient response and articulate speech reproduction that stands out in dense mixes or busy talk segments.
Engineering around the phasing plug assembly delivers a genuinely tight cardioid pattern, with rear rejection exceeding -40 dB at 180 degrees off-axis. That means bleed from monitors, adjacent talent, or nearby instruments stays out of the capsule, while the front pickup remains consistent even as the presenter or vocalist moves around slightly — a real advantage for podcast hosts, broadcast talent, and studio vocalists who need freedom without sacrificing tone.
A two-position switch is what sets the PR 77D apart from a standard dynamic capsule. Flip to Voice mode for a -6 dB per octave roll-off below 120 Hz, tightening up low-end rumble and proximity buildup on spoken word. Switch to Music mode to unlock the full 60 Hz – 16 kHz range for instruments, ensembles, or any source that benefits from extended low frequencies.
Built for permanent installation on a boom or fixed base rather than handheld use, it mounts via standard 5/8″-27 threads and stays put through demanding daily use in broadcast booths, podcast studios, and recording sessions.
- Generating Element: Dynamic
- Output Connection: 3-pin XLR
- Frequency Response: 60 Hz-16 kHz (Music), 120 Hz-16 kHz (Voice, filter on)
- Polar Pattern: Cardioid
- Impedance: 600 ohms balanced
- Weight: 24.5 oz
- Max SPL: 148 dB
- Output Level: -53.9 dB @ 1 kHz
- Rear Rejection @ 180°: -40 dB
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