AKG PZM11 LL Flush-Mount Line-Level Boundary Microphone

The PZM11 professional boundary layer microphone is designed for security and surveillance applications. The PZM11 is characterized by a consistent pickup anywhere around the mic. Low frequencies below the voice range are rolled off to reduce the pickup of heating, ventilation or air-conditioning rumble (HVAC noise). The high-frequency response is boosted slightly to aid clarity and articulation.

The PZM11 has a mic-level output and is powered by 12-48V phantom power. Electronics on the rear of the plate offer screw terminals, eliminating the need for connectors.

The AKG/Crown PZM11 is a Pressure Zone Microphone® designed for security, surveillance, and conference-room applications. It can be mounted in the ceiling or wall in a standard electrical outlet box. Providing excellent intelligibility, the PZM11 is designed to look like something other than a microphone so as not to draw attention.

Like other Pressure Zone Microphones, the PZM11 utilizes the Pressure Recording Process™ in which a miniature condenser
microphone capsule is mounted very close to a sound-reflecting plate or boundary. The capsule is mounted in the “Pressure Zone” just above the boundary, a region where sound coming directly from the sound source combines in-phase with sound reflected off the boundary. The benefits are a wide, smooth frequency response free of phase interference, excellent clarity and “reach,” and consistent pickup anywhere around the microphone.

In the PZM11, low frequencies below the voice range are rolled off to reduce pickup of air-conditioning rumble. The high-frequency response is boosted slightly to aid clarity and articulation.

The microphone connector is a row of screw terminals for easy installation. The output is balanced, low impedance, which allows long cable runs without hum pickup or high-frequency loss. Powering is via 12 to 48 volts phantom power.