Crown PZM-6D Dépliant
PRESSURE ZONE
MICROPHONE
MICROPHONE
®
T
he PZM-6D is a Pressure Zone Microphone
designed for professional recording, sound
reinforcement, teleconferencing and broad-
designed for professional recording, sound
reinforcement, teleconferencing and broad-
casting. Its low profile, unobtrusive appearance
is appreciated in conference rooms, as well as
on television, film and video productions. When
suspended over an orchestra on a clear panel,
the PZM practically disappears. Its miniature,
permanently attached cable also reduces visual
clutter.
is appreciated in conference rooms, as well as
on television, film and video productions. When
suspended over an orchestra on a clear panel,
the PZM practically disappears. Its miniature,
permanently attached cable also reduces visual
clutter.
The PZM-6D has a switchable dual frequency
response: rising or flat. The “rising” position
adds brilliance. This makes it useful wherever a
crisp attack is desired, such as on percussion,
drums or piano. The user can get a bright sound
without boosting high frequencies on the re-
cording console; the benefit is lower noise. The
“flat” position provides a smooth, flat high-fre-
quency response for natural sound reproduc-
tion.
response: rising or flat. The “rising” position
adds brilliance. This makes it useful wherever a
crisp attack is desired, such as on percussion,
drums or piano. The user can get a bright sound
without boosting high frequencies on the re-
cording console; the benefit is lower noise. The
“flat” position provides a smooth, flat high-fre-
quency response for natural sound reproduc-
tion.
Capable of withstanding up to 150 dB SPL with-
out distortion, the PZM will never overload in
practical use. Its electret condenser capsule
provides a wide, smooth frequency response
from 20 Hz to 20 kHz. Self noise is low, and
sensitivity is high enough to override mixer
noise in distant-miking applications.
out distortion, the PZM will never overload in
practical use. Its electret condenser capsule
provides a wide, smooth frequency response
from 20 Hz to 20 kHz. Self noise is low, and
sensitivity is high enough to override mixer
noise in distant-miking applications.
Like other Pressure Zone Microphones, the 6D
utilizes the Pressure Recording Process™ in
which a miniature condenser microphone cap-
sule 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.
utilizes the Pressure Recording Process™ in
which a miniature condenser microphone cap-
sule 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.
Operating Instructions
The PZM-6D features self-contained electronics
in the attached XLRM connector housing, which
allows it to plug directly into a standard 12-48
VDC phantom power supply.
The PZM-6D features self-contained electronics
in the attached XLRM connector housing, which
allows it to plug directly into a standard 12-48
VDC phantom power supply.
Crown makes an AC-powered model PH-4B
supply for powering up to four PZMs. Also avail-
able is a single-channel AC/battery supply,
Crown model PH-1A. For special applications,
you can make your own battery supply as sug-
gested in Fig. 3.
supply for powering up to four PZMs. Also avail-
able is a single-channel AC/battery supply,
Crown model PH-1A. For special applications,
you can make your own battery supply as sug-
gested in Fig. 3.
Using 2-conductor shielded microphone cable,
plug the microphone into a phantom power sup-
ply. Connect the power supply output to a
plug the microphone into a phantom power sup-
ply. Connect the power supply output to a
Specifications
Type: Pressure Zone Microphone.
Transducer: Electret condenser.
Frequency response: 20 Hz to 20 kHz. See Fig. 1.
Polar pattern: Hemispherical when used on a floor,
wall or ceiling.
Open circuit sensitivity: 7 mV/Pa* (–43 dB re 1
volt/Pa).
Power sensitivity: –43 dB re 1 mW/Pa. EIA sensitiv-
ity: –135 dBm.
Impedance: 240 ohms, balanced. Recommended
minimum load impedance 1000 ohms.
Self-Noise: 20 dB equivalent sound pressure level,
A-weighted.
S/N ratio: 74 dB at 94 dB SPL.
Maximum Sound Pressure Level: 150 dB SPL at the
microphone produces 3% THD.
Polarity: Positive pressure on the diaphragm pro-
duces positive voltage on pin 2 with respect to pin
3 of the output connector.
3 of the output connector.
Operating voltage: Phantom power, 12-48 volts DC,
positive voltage on pins 2 and 3 with respect to pin
1 of the output connector.
1 of the output connector.
Current drain: 1.1 mA.
Cable: Permanently attached 15-foot (4.58-m) black
cable with an XLRM connector.
Switch: Frequency-response select switch for rising
or flat response.
Color: Black.
Dimensions: 3-in. x 2.5-in. x .375-in. (7.62-cm x
6.35-cm x .95-cm). See Fig. 2.
Included accessories: PZM windscreen, carrying
pouch.
Optional accessories: PH-4B phantom power supply
(4 channels, AC powered). PH-1A phantom power
supply (1 channel, battery or AC-adapter pow-
ered).
supply (1 channel, battery or AC-adapter pow-
ered).
* 1 pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL.
Fig. 1
Fig. 2
Frequency in Hz
Legend –––––––––– RISING
- - - - - - - - - FLAT
Low frequency response depends on size of surface.
–20
–25
–30
–35
20
100
1K
+15
+10
+5
dB
0
–5
–10
–15
10K
RISING
FLAT
3"
2.5"
.375"
2.5"
.750" DIA.
FLAT
RISING
3.8"
®
PZM
-6D
3 in.
(7.62 cm)
2.5 in.
(6.35 cm)
2.5 in.
(6.35 cm)
.375 in.
(0.95 cm)
.750 in.
(1.91 cm)
DIA.
3.8 in.
(9.65 cm)