Crown PZM-180 Quick Reference Manual

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BATTERY

BATTERY COVER

BATTERY INSTALATION

–

+

+20

+20

Microphone Quick Reference

®

PZM-180 Hand Held Mic

3.93"

.89"

7.17"

.88"

Fig. 1 PZM-180 Hand Held Mic

PZM-180

The PZM

®

-180 is a Pressure Zone Microphone

®

designed for general-purpose applications
such as conferences, group discussions, in­terviews, broadcast news and sports, home
video production, lectures, and music record­ings. The microphone can be placed on a
large surface such as a table, floor, wall, or
lectern; or can be hand-held for interviews.
The PZM-180 is relatively insensitive to me­chanical vibrations such as table thumps or
handling noise. Its electret-condenser cap­sule provides a wide, smooth frequency re­sponse from 50 Hz to 18 kHz and its hemi­spherical polar pattern allows clear pickup of
everyone surrounding the microphone.

The PZM-180 can be phantom-powered or
battery-powered. Connecting the microphone
to a phantom-power supply disconnects the
internal battery. The output is balanced, low
impedance, which allows long cable runs with­out hum pickup or high-frequency loss.

Like other PZMs, the 180 utilizes the Pressure
Recording Process

™

in which a miniature con­denser microphone capsule is arranged very
close to a sound-reflecting plate or boundary.
The capsule is mounted in the “Pressure Zone”
just above the boundary, a region where sound
coming directly from the sound source com­bines in phase with sound reflected off the
boundary. The benefits are a wide, smooth
frequency response free of phase interfer­ence, excellent clarity and “reach,” a hemi­spherical polar pattern and uncolored off-axis
response.

Operation

If battery power is desired, insert a 1.5 volt
size N battery into the battery holder; refer to
Figs. 5 and 6. The battery should provide at
least 6 months of continuous operation. To
increase the sensitivity of the PZM-180 by 4 to
10 dB: Remove the 1.5-volt N-cell and substi­tute a 6-volt Duracell PX28 battery (available

at any camera store). Push the battery clips
together to hold the smaller 6-volt battery. A

1.5 V size N battery and a windscreen are
included.

If you desire phantom power, plug a mic
cable between the PZM-180 and the input of
a phantom-power supply. Connect another
mic cable between the phantom-supply
output and a mic input on your mixer or
recorder.

Warranty

Crown professional microphones are guar­anteed unconditionally against malfunction
from any cause for a period of three years
from date of original purchase. If such mal­function occurs, microphone will be repaired
or replaced (at our option) without charge
for materials or labor. If the microphone
seems to be defective, return the micro­phone in its original packaging to Crown’s
Service Department at 57620 CR 105,
Elkhart, IN 46517. For further assistance or
technical support call 800-342-6939.

Specifications

Type: Pressure Zone Microphone.
Transducer: Electret condenser.
Frequency response (typical): 50 Hz to 18

kHz. See Figs. 2 and 3.
Polar pattern: Hemispherical when mounted
on a surface boundary. On a stand the mic
is omnidirectional at lower frequencies and
unidirectional at higher frequencies. See
Fig. 4.
Impedance: 150 ohms, balanced. Recom­mended minimum load impedance 1000
ohms.
Open-circuit sensitivity: Battery: 0.8 mV/Pa*
(–62 dB re 1 V/Pa*). Phantom: 3.2 mV/Pa* (–
50 dB re 1 V/Pa*).
Power sensitivity: Battery: –59.5 dBm. Phan­tom: –47.5 dBm.
Equivalent noise level: 21 dB SPL typical (0
dB=.0002 dyne/cm2), A-weighted.

Maximum SPL at 3% THD: 120 dB SPL.
Operating voltage: 12 to 48 VDC phantom

power(positive voltage on pins 2 and 3 with
respect to pin 1 of output connector), or

1.5V size N battery (Ray-O-Vac 810 or
equivalent) or 6V battery (Duracell PX28 or
equivalent).

Output Connector: Standard male XLR.
Cable: None supplied.
Materials: Carbon filled nylon, black finish.
Weight: 2.4 oz (68 g).
Dimensions: See Fig. 1.
*1 pascal = 10 microbars = 10 dynes/cm

2

=

94 dB SPL.

Frequency in Hz

+10

dB 0

–10
–20

20 100 1K

Fig. 2 Frequency Response on a Boundary

Frequency in Hz

+10

dB 0

–10
–20

20 100 1K

Fig. 3 Frequency Response on a Mic Stand

330°

300°

270°

240°

210°

Fig. 4 Free Field Polar Response

Fig. 5 Battery Cover Removal

Fig. 6 Battery Replacement

0°

FRONT

-5

-10

-15

-20

REAR

-0

5k

2k

500

10K

10K

30°

60°

90°

120°

2 kHz
5 kHz
500 Hz

150°180°

[

Guaranteed Excellence

Crown International, Inc.

PO Box 1000 Elkhart, IN 46515-1000

Ph. 800-342-6939/219-294-8200

Fax. [phone]

Auto-Fax: [phone]

http://www.crownintl.com

Trademark Notice:

Crown,® Pressure Zone Microphone,®

are registered trademarks of Crown International
Inc.

and

PZM

®