What it is and what it was built for
A low-impedance cardioid dynamic microphone introduced in 1965 for TV studios. Designed with a non-reflective finish and no switch, built to survive torture tests.
How it works, in terms a player would use
It is a dynamic microphone with a cardioid pickup pattern. It connects via XLR and uses impedance balancing to reduce hum and noise. It has no on-off switch. Its Unidyne III capsule delivers a frequency response from 40 Hz to 15 kHz.
What it does better than anything else
It rejects off-axis sound and feedback more reliably than most dynamic mics at its price. It handles high SPLs from guitar cabinets and snare drums without distortion or damage.
What it does badly
It does not capture full low-end extension below 40 Hz or high-frequency air above 15 kHz. It offers no pad, no filter, no output control — just one fixed response and one polar pattern.
What people made with it
Presidential speeches since Lyndon Baines Johnson. Live drum kits. Guitar cabinets. Studio vocals. Broadcast audio. Every U.S. president since 1965 has used it for speeches.
Who should use it, and who should not
Engineers who need a durable, consistent, no-fuss mic for loud sources or noisy rooms. Not for users who require variable patterns, high-frequency detail, or low-end extension beyond 40 Hz.
Is it worth your time
Yes. It remains in production, widely used, and built for daily abuse — not nostalgia or collectibility.
