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Crown Audio PZM-10 Pressure Zone Microphone, Low-Profile, Mic-Level Output

Crown Audio PZM-10 Pressure Zone Microphone, Low-Profile, Mic-Level Output


Our Price : $128.28

Product Code: 505345


The Crown® PZM®-10 and PZM-10LL, part of the Pressure Zone Microphone® line, are designed for security, surveillance, and conference-table use. Since they do not look like microphones, they are inconspicuous. Each mic’s tubular housing mounts in a 25/32-inch diameter hole in a ceiling panel, wall or table.

The PZM-10 has a mic-level output and a 3-pin XLR-type connector for easy plug-in installation. The mic requires 12 to 48V phantom power. The PZM-10LL has a line-level output from its unterminated cable. It requires 12 to 24V DC.

Like other Pressure Zone Microphones, the PZM-10 and PZM-10LL use a miniature mic capsule mounted very near a sound-reflecting plate or boundary, in the Pressure Zone. In this zone, direct sound from the sound source combines in phase at all frequencies with reflected sound off the boundary.

The benefits are many: 6 dB more sensitivity, 6 dB less noise, a wide smooth frequency response free of phase interference, excellent clarity and “reach,” and consistent pickup anywhere around the mic. Frequencies below the voice range are rolled off to reduce pickup of air conditioning rumble. The high-frequency response is boosted slightly to help articulation.

Because of their tailored response and PZM construction, the PZM-10 and PZM-10LL will pick up conversations or other desired sounds with extra clarity and defi nition. The output is balanced, low impedance, which allows long cable runs without hum pickup or high-frequency loss The mic’s humbucking transformer and steel case prevent hum pickup, even near fluorescent lights.


• Pressure Zone Microphones for security and surveillance
• Clear, intelligible pickup of speech
• Choice of mic level output (PZM-10) or line-level output (PZM-10LL)
• Inconspicous, resembles a light switch
• PZM-10 powered by 12-48V phantom power
• PZM-10LL powered by 12-24V DC

  • Transducer type: Electret condenser.
  • Frequency response (typical): PZM-10: 80 Hz to 20,000 Hz. See Fig. 1. PZM- 10LL: 100 Hz to 20,000 Hz. See Fig. 2.
  • Polar pattern: Hemispherical.
  • Impedance: PZM-10: 240 ohms, balanced. PZM-10LL: 75 ohms, balanced. Recommended minimum load impedance 1000 ohms.
  • Open circuit sensitivity: PZM-10: 2.5 mV/Pa* (–52 dBV/Pa). PZM-10LL: 1.4V/Pa* (+3 dBV/Pa).
  • Power sensitivity: PZM-10: –52 dBm/Pa*. PZM-10LL: +8 dBm/Pa*.
  • Equivalent noise level (self-noise): 26 dB SPL typical (0 dB = .0002 dyne/cm2), A-weighted.
  • S/N Ratio: 68 dB at 94 dB SPL.
  • Maximum SPL: 120 dB SPL produces 3% THD.
  • Operating voltage: PZM-10: 12 to 48V phantom power, positive voltage on pins 2 and 3 with respect to pin 1. PZM-10LL: 12 to 24V DC, positive voltage on red lead with respect to shield.

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