- Description
Details
The AKG PZM11 LL WR is a professional weather-resistant boundary layer microphone designed for fast-food restaurants, outdoor intercoms, toll booths, SOS telephones, theme-park security and the like. A plastic membrane inside the microphone protects the mic capsule from water damage. The PZM11 LL WR will work during and after rainfall. If water freezes on the membrane, the mic's frequency response will change but will return to Accessories when the ice melts and the membrane dries. The PZM11 LL WR is powered by 12V - 24V DC provides line-level output and can be plugged directly into a VCR line input without the need for a costly mic preamp.
- Features
Features
- PZM Microphones are designed for security, surveillance, and conference-table use
- Since they do not look like microphones, they are inconspicuous
- Line-level output connects directly to video recorders
- Frequencies below the voice range are rolled off to reduce traffic rumble
- The PZM11 LL WR will pick up conversations or other desired sounds with extra clarity
- The unit is "weather resistant"
- Will work during and after rainfall
- The mic’s frequency response will change temporarily if the membrane gets wet, but will return to normal when dry
- If water freezes on the membrane, the mic’s frequency response will change, but will return to normal when the ice melts and the membrane dries
- High-pressure water sprays directly on the membrane (through the louvered wall plate) may damage the membrane
- The microphone is not designed to be submerged
- Specification
Frequency Response (typical) 80 Hz to 10,000 Hz Polar Pattern Hemispherical Impedance 75 ohms, balanced. Recommended minimum load impedance 1000 ohms Open-Circuit Sensitivity, typical 1.4 V/Pa Power Sensitivity, typical +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 100 dB SPL produces 3% THD at maximum gain Operating Voltage 12-24V AC or DC. Phantom powering by special order as a PZM11 LL WR S1 Polarity Positive pressure on diaphragm produces positive voltage on audio terminal Operating Temperature Range –10 to +60 deg. C, 14to 140 deg. F. The mic still works at –40°. C but its sensitivity is reduced Output Connector Screw terminals labeled AUDIO +, AUDIO – and GROUND Cable None supplied. Use 2-conductor shielded mic cable and twisted-pair power cable Materials Steel plate and high-impact plastic capsule holder. Plastic membrane Finish Silver. If you paint the mic, take care not to paint inside the louvered wall plate Dimensions (H x W x D) 4.53" (115 mm) x 2.78" (70.6 mm) x 1.72" (43.69 mm) Net Weight 0.15 lbs (0.071 kg) - Documents
Documents
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