Crown PZM11 Boundary Microphone

More...

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. 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. SPECIFICATIONS Type Pressure Zone Microphone. Element Electret condenser. Frequency response typical 80 Hz to 20,000 Hz. Polar pattern Hemispherical. Impedance 225 ohms, balanced. Recommended minimum load impedance 1000 ohms. Open circuit sensitivity PZM 11 5 mVPa 46 dBVPa. Power sensitivity45.5 dBmPa Equivalent noise level self noise 26 dB SPL typical 0 dB .0002 dynecm2, A weighted. SN Rati 68 dB at 94 dB SPL. Maximum SPL 120 dB SPL produces 3 THD. Output connector Three screw terminals. 1 ground, 2 audio hot in polarity, 3 audio cold opposite polarity. Polarity Positive pressure on the diaphragm produces a positive voltage on screw terminal 2 with
Close...