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.
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: 5 mV/Pa (–46 dBV/Pa)
Power sensitivity: –45.5 dBm/Pa
Equivalent noise level (self-noise): 26 dB SPLtypical (0 dB = .0002 dyne/cm2), A-weighted
S/N Ratio: 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 producesa positive voltage on screw terminal 2 with respect to screw terminal 3
Operating voltage: Standard phantom power, 12 to 48volts DC on screw terminals 2 and 3 with respect to screw terminal 1
Current drain: 400 microamperes
Materials: Steel plate and high-impact plasticcapsule holder
Finish: Off-white. May be painted any color; takecare to first seal the opening between the mic capsule and boundary plate
Weight: 2.5 oz. (71 g)
Whirlwind MK415
1 × kr 1 225,- 
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