AKG PZM10 LL Users Manual

T

PZM 10 (LL)

he A K G / C r o w n PZM10 is a Pressure
Zone Microphone® designed for
security, surveillance, and conference-

table use.
Since it does not look like a microphone, it is
inconspicuous. The mic’s tubular housing
mounts in a 25/32" diameter hole in a ceiling
panel, wall or table.

Like other Pressure Zone Microphones, the
PZM10 uses 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.

In the PZM10, low 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 its tailored response and PZM
construction, the PZM10 will pick up conver­sations or other desired sounds with extra
clarity and definition.

The microphone connector is an XLR type
(3-pin pro audio) for ea sy plug-in installation.
The output is balanced, low impedance, which
allows long cable runs without hu m pickup or
high-frequency loss. Powering is by 12 to
48 V phantom power.

The PZM10 LL has a line level output.
The mic’s humbucking transformer and steel

case prevent hum pickup, even near fluores­cent lights.

Installation
To pick up speech at a small conference table

(about 6 feet square), mount one PZM10 in
the middle of the table. For longer tables, use
one PZM in the midd le of every 4 to 6 people.
No person should be more than 3 feet from
the nearest microphone.

1. Please refer to Fig. 2 and identify the parts
shown.

2. Determine where you want to install the
microphone, and drill a 25/32" diameter hole

there.

PRESSUREZONE
MICROPHONE

Specifications
Transducer type: Electret condenser.
Frequency response (typical): 80 Hz to 20,000

Hz. See Fig. 1.

Polar pattern: Hemispherical.
Impedance: 240 ohms, balanced. Recom-

mended minimum load impedance 1000
ohms.

Open circuit sensitivity:

2.5 mV/Pa* (–52 dB V/Pa).

Power sensitivity: –52 dBm/Pa*
Equivalent noise level (self-noise):

26 dB SPL typical (0 dB = 0.0002 dyne/cm2),
A-weighted.

S/N Ratio: 68 dB at 94 dB SPL.
Maximum SPL: 120 dB SPL produces 3% THD.
Operating voltage: 12 to 48 V phantom power,

positive voltage on pins 2 and 3 with resp ect
to pin 1.

Polarity: Positive pressure on the diaphragm

produces a positive voltage on pin 2 with
respect to pin 3 of output connector.

Current drain: 400 microamperes.
Output connectors:

PZM10: Ma le XLR type (3-pin pro audio).
PZM10 LL: Line level output,

unterminated cable.

Cable: None supplied. Use 2-conductor sh ielded

mic cable.

Materials: Steel plate and housing.
Finish: Off-white. May be painted any color; take

care to first seal the opening between the
capsule and boundary plate.

Net weight: 2.6 oz. (73.6 g).
Dimensions: See Fig.2.

* 1 pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL.

Fig. 1

Fig. 2

Frequency Response

Frequency in Hz

0

®

PZM10 (LL)

3. Obtain some 2-conductor shielded mic
cable, long enough to run from your equip­ment input to the microphone. If space is tight
behind the mounting surface, obtain a right­angle female XLR connector. Solder the fe­male XLR connector onto the cable: shield to
pin 1, hot lead to pin 2, other lead to pin 3.

4. Run the female XLR and mic cable to the
hole.

5. Using a 5/32" Allen wrench, remove the
collar from the microphone. Insert the micro­phone tube into the hole.

6. Slide the collar onto the mic tube. Pull the
plate tight against the hole and press the collar
tight against the mounting surface. Tighten
the Allen screw in the collar.

7. Plug your mic cable into the microphone.

8. Plug the other end of your mic cable into
one of these devices:

* A mic preamp that supplies phantom power.
* A mixer that supplies phantom power.
* A phantom power supply, such as the A K G /

C r o w n PH4B or PH1A.
Connect the output of the supply to the mic

input of your mic preamp, mixer or recorder.

Architects’ and Engineers’ Specifications

The microphone shall be the A K G / C r o w n
PZM10 or equivalent. The microphone shall
be a electret condenser Pressure Zone
Microphone with a hemispherical polar
pattern. The microphone shall have a tubular
housing which mounts in a 25/32" diameter
hole. Open-circuit sensitivity shall be 2.5
mV/Pa typical. Equivalent noise level shall be
26 dBA typical. Maximum SPL shall be
120 dB for 3% THD. Powering shall be 12-48
V phantom power. Output connector shall be
male XLR-type.
The A K G / C r o w n PZM10 microphone is
specified.

AKG ACOUSTICS GMBH LAXENBURGER STRASSE 254, 1230 VIENNA/AUSTRIA
AKG ACOUSTICS, U.S. SERVICE 24950 GROVE VIEW ROAD, MORENO VALLEY, CA 92551, U.S.A

© 2015 HARMAN International Industries, Incorporated. All rights reserved. AKG is a trademark of AKG Acoustics GmbH, registered in the United States
and/or other countries.
Features, specifications and appearance are subject to change without notice.

www.akg.com

PZM10 Schematic

Warranty

A K G / C r o w n professional microphones are
guaranteed unconditionally against
malfunction from any cause for a period of
three years from date of ori ginal purchase.
Please refer to the enclosed full warranty
statement for more detail.

Service
If the unit fails to work, first replace or repair

the mic cables and check the power supply. If
you determine that the microphone
product is defective, return the
complete product in its original
packaging to one of the addresses
below. For further assistance or
technical support call the international
helpdesk at [phone].