PZM11 Boundary Layer Microphone
Table of Contents
Quick Reference Guide
Model |
Part# |
|
Description |
Powered by |
| PZM11 | 3326H00010 | 6000H50820 | Mic Level | Phantom Power |
| PZM11LL | 3340H00010 | 6000H50960 | Line level * Can be modified for PP operation |
VAC or VDC* |
| PZM11LLWR | 3325H00010 | 6000H50810 | Line Level Weather Resistant | VAC or VDC |
| PZM11LLPP | 3340V00010 | Line Level Phantom Power | Phantom Power | |
| PZM11LLWRPP | 3325V00010 | Line Level Weather Resistant Phantom Power |
Phantom Power |
Power
The PZM11, PZM11LLPP and PZM11LLWRP can only be powered by Phantom Power.
The PZM11LL and PZM11LLWR can be powered by 24VAC or by 12 to 24VDC.
The PZM11LL Can be modified to operate with Phantom Power by moving R14 to R13.
R14 is a zero Ω resistor.
This can also be done by removing R14 and placing a Jumper across R13.
Gain Adjustment
By default R5 is 1KΩ resistor. The gain can be adjusted by swapping this resistor.
The mic comes with preloaded surface-mount resistors.
- 1K minimum headroom
- 2K 6 dB more headroom
- 3.9K 12 dB more headroom
- 8.2K 18 dB more headroom
- 100K maximum headroom (mic level)
Specifications |
|
| Type: Pressure Zone Microphone. | Output connector: Three screw terminals. |
| Element: Electret condenser. | 1 = ground, 2 = audio hot (in polarity), |
| Frequency response (typical): 80 Hz to 20,000 Hz. | 3 = audio cold (opposite polarity). |
| | Polarity: Positive pressure on the diaphragm produces |
| Polar pattern: Hemispherical. | a positive voltage on screw terminal 2 with |
| Impedance: | respect to screw terminal 3. |
| PZM-11: 225 ohms, balanced. | Operating voltage: |
| PZM-11LL: 75 ohms, balanced. | PZM-11: Standard phantom power, 12 to 48V DC |
| Recommended minimum load impedance 1000 | on screw terminals 2 and 3 with respect to screw |
| ohms. | terminal 1. |
| Open circuit sensitivity: | PZM-11LL: 24V AC, 12-24V DC, or phantom |
| PZM-11: 5 m V/Pa* (–46 d BV/Pa). | power as the PZM-11LL modified. |
| PZM-11LL: 1.4V/Pa* (+3 d B re 1V/Pa). | Current drain: |
| Power sensitivity: | PZM-11: 400 microamperes. |
| PZM-11: –45.5 d Bm/Pa* | PZM-11LL: 4 milliamperes. |
| PZM-11LL: +8 d Bm/Pa*. | Materials: Steel plate and high-impact plastic |
| Equivalent noise level (self-noise): 26 d B SPL typical | capsule holder. |
| (0 d B = .0002 dyne/cm2), A-weighted. | Finish: Off-white. May be painted any color; take |
| S/N Ratio: 68 d B at 94 d B SPL. | care to first seal the opening between the mic |
| Maximum SPL: | capsule and boundary plate. |
| PZM-11: 120 d B SPL produces 3% THD. | Operating Temperature Range: –10° to +60° C |
| PZM-11LL: 100 d B SPL produces 3% THD. | (+14° to +140° F). |
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