AKG / Crown PZM10 Professional Flush-Mount Boundary Microphone
Availability:
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Description
The 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 48 V phantom power.
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 definition.
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.
Features:
- Hemispherical polar pattern; Clear, intelligible pickup of speech
- Low profile, cylindrical design, perfect for wall or tabletop installations
- Choice of mic level output (PZM®-10) or line-level output (PZM®-10LL)
- PZM®-10 powered by 12-48V phantom power
| Transducer type | Electret condenser. |
| Frequency response (typical) | PZM-10: 80 Hz to 20,000 Hz PZM-10LL: 100 Hz to 20,000 Hz |
| Polar pattern | Hemispherical |
| Impedance | PZM-10: 240 ohms, balanced |
| Recommended minimum load impedance | 1000 ohms |
| Open circuit sensitivity | PZM-10: 2.5 mV/Pa* (Ð52 dBV/Pa). |
| Power sensitivity | PZM-10: Ð52 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. |
| Polarity | PZM-10: Positive pressure on the diaphragm produces a positive voltage on pin 2 with respect to pin 3 of output connector. PZM-10LL: Positive pressure on the diaphragm produces a positive voltage on white lead with respect to black lead. |
| Operating Temperature Range | Ð10¡ to +60¡ C (+14¡ to +140¡ F). |
| Current drain | PZM-10: 400 microamperes PZM-10LL: 2.8 mA at 12V DC, 4.22 mA at 24V DC |
| Output connectors | PZM-10: Male XLR type (3-pin pro audio). PZM-10LL: None. |
| Cable | PZM-10: None supplied. Use 2-conductor shielded mic cable. PZM-10LL: 12-in., permanently attached 3-conductor shielded cable. Red: B+, White: audio+,Black: audioÐ, Shield: ground. |
| Materials | Steel plate and housing. |
| Finish | Off-white. May be painted any color; take care to Þrst seal the opening between the capsule and boundary plate |
| Net weight | PZM-10: 2.6 oz. (73.6 g). |
The 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 48 V phantom power.
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 definition.
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.
Features:
- Hemispherical polar pattern; Clear, intelligible pickup of speech
- Low profile, cylindrical design, perfect for wall or tabletop installations
- Choice of mic level output (PZM®-10) or line-level output (PZM®-10LL)
- PZM®-10 powered by 12-48V phantom power
| Transducer type | Electret condenser. |
| Frequency response (typical) | PZM-10: 80 Hz to 20,000 Hz PZM-10LL: 100 Hz to 20,000 Hz |
| Polar pattern | Hemispherical |
| Impedance | PZM-10: 240 ohms, balanced |
| Recommended minimum load impedance | 1000 ohms |
| Open circuit sensitivity | PZM-10: 2.5 mV/Pa* (Ð52 dBV/Pa). |
| Power sensitivity | PZM-10: Ð52 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. |
| Polarity | PZM-10: Positive pressure on the diaphragm produces a positive voltage on pin 2 with respect to pin 3 of output connector. PZM-10LL: Positive pressure on the diaphragm produces a positive voltage on white lead with respect to black lead. |
| Operating Temperature Range | Ð10¡ to +60¡ C (+14¡ to +140¡ F). |
| Current drain | PZM-10: 400 microamperes PZM-10LL: 2.8 mA at 12V DC, 4.22 mA at 24V DC |
| Output connectors | PZM-10: Male XLR type (3-pin pro audio). PZM-10LL: None. |
| Cable | PZM-10: None supplied. Use 2-conductor shielded mic cable. PZM-10LL: 12-in., permanently attached 3-conductor shielded cable. Red: B+, White: audio+,Black: audioÐ, Shield: ground. |
| Materials | Steel plate and housing. |
| Finish | Off-white. May be painted any color; take care to Þrst seal the opening between the capsule and boundary plate |
| Net weight | PZM-10: 2.6 oz. (73.6 g). |
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