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Crown PZM185
Hemispherical Boundary Layer Microphone


The PZM185 is a Pressure Zone Microphone® designed for applications such as group discussions, interviews, broadcast and home video production.
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List Price: $289.00
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Crown PZM185
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The PZM185 is a Pressure Zone Microphone® designed for applications such as group discussions, interviews, broadcast and home video production. The paddle can be detached, which makes it nearly invisible when mounted on tables, floors, walls, lecterns or cameras.

The PZM185 is powered by either an internal AAA 1.5V battery or 12–48V phantom power. It provides a wide, smooth frequency response and is protected against static and RFI. The XLR output is balanced and low-impedance, which allows long cable runs without hum pickup or high-frequency loss.


  • Ideal for table-top or on-floor recordings: conference, group discussions, interviews, broadcast, home video, lectures, music
  • Works on internal AAA battery or phantom power
  • Low-impedance XLR-type output
  • Boundary “paddle” can be detached
  • Clear, bright sound quality with excellent bass
    • Element: Electret condenser.
    • Frequency response (typical): 50 Hz to 16 kHz
    • Polar pattern: Hemispherical (half-omni) on a large surface.
    • Impedance: 150 ohms, balanced. Recommended minimum load impedance 1000 ohms.
    • Open circuit sensitivity (1.5V battery power): 0.8mV/Pa (–62 dB re 1 volt/Pa).
    • Power sensitivity (1.5V battery power): –59.5 dBm. EIA sensitivity –154 dBm.
    • Open-circuit sensitivity (phantom power): 3.2 mV/Pa (–50 dB re 1V/Pa).
    • Power sensitivity (phantom power): –47.5 dBm. EIAsensitivity –142 dBm.
    • Equivalent noise level (self-noise): 21 dB SPLtypical, A-weighted (0 dB = .0002 dyne/cm2).
    • S/N ratio: 73 dB at 94 dB SPL.
    • Maximum SPL: 120 dB SPL produces 3% distortion with phantom power.
    • Polarity: Positive pressure on the diaphragm produces positive voltage on pin 2 with respect to pin 3 of the output connector.
    • Cable: 8-foot (2.438-m), 2-conductor shielded, permanently attached cable. No other cable supplied; use 2-conductor shielded mic cable.
    • Output connector: 3-pin XLR-type pro audio connector.
    • Operating voltage: One 1.5V size AAA alkaline battery (Duracell MN2400 or equivalent) or 12 to 48V phantom power (positive voltage on pins 2 and 3 with respect to pin 1).
    • Battery life: Approximately 45 days.
    • Current drain: 0.5 mA.
    • Materials: High-impact plastic housing and steel power module.
    • Finish: Satin black.
    • Dimensions: 5.9" (15.0cm) length, 3.409" (8.7cm) width (at widest point), .607" (1.5cm) height (at highest point)
    • Weight: 4 ounces (115 grams).

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