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T

PZM 10 (LL)

he A K G / C r o w n PZM10 is a Pressure

Zone Microphone

®

desied for gn

security, surveillance, and conference-

table use.

PRESSUREZONE

MICROPHONE

Sie it ncdoes not lk oolike a microphone, it is

inconspicuous. The mic’s tlar housi ubung

mounts in a 25/32" diameter hole in a ceiling

panel, wall or table.

Like other Pressure Zone Microphones, the

PZM10 es a miniature mic capsuluse

mounted very near a sound-reflecting plate or

boundary, in the Pressure Zone. In this zone,

direct sound from the sound source combines

in ase at all ephfrquencies with reflected

sound othe boundary. The benets are

many: 6 dB more sensitivity, 6 dB less noise, a

wide smooth efrquency response ee ofrf

phase interference, excellent clarity and

“r,each”and consistent pickup anywhere

around the mic.

In the M10, low ePZfrquencies below the

voice range are rolled o to reduce pickup of

air conditiing rumble. The hi-eonghfrquency

response is boosted slightly to help articula-

tion. Because of its tailored response and PZM

constr, the 0 wucontiPZM1ill pick up conver-

sations or other desired sounds with extra

clarity and definition.

The microphone connector is an XLR te yp

(3-pin pro audio) for easy pl-in itaugnsllation.

The ouputt is balanced, low iedampnce, which

allows long cable rs wunithout hum pickup or

hi-eghfrquency 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 fluores-

cent lights.

Installation

To pick up speech at a small conference table

(about 6 ft square), mount e 0 ieeonPZM1n

the mile of the table. For longer tables, dduse

one PZM in the middle of every 4 to 6 people.

No person should be more than 3 ft om eefr

the nearest microphone.

1. Plse refer to Fig. 2 and identify the paearts

shown.

2. Determine ere u want to iwhyonstall the

microphone, and drill a 25/32" diameter hole

Specifications

Transducer type: Electret condenser.

Frequency response (typical): 80 Hz to ,000 20

Hz. See Fig. 1.

Polar pattern: Hemispherical.

Iedance: mp240 ohms, balanced. Recom-

mended minim load iedamumpnce 1000

ohms.

Open circuit sensitivity:

2.5 mV/Pa* (–52 dB V/). Pa

Power sensitivity: –52 dBm/Pa*

Equivalent noise level (self-ise): no

26 dB SPL tical (0 dB = 0.0002 dyne/cmyp

2

),

A-weited. gh

S/N Ratio: 68 dB at 94 dB SPL.

Maxim SPL: mu120 dB SPL produces 3% THD.

Operating volge: ta12 to 48 V phantom power,

positive voltage on pins 2 and 3 with respect

to pin 1.

Polity: arPositive pressure on the diaphragm

pres a itive age on pin 2 woducposvoltith

respect to pin 3 of ouputt connector .

Current drain: 400 microamperes.

Output connectors:

PZM10:Ma le XLR te (3-pin praypo udio).

PZM10 LL: Line level output,

unterminated cable.

Cable: None supplied. Use 2-conductor shielded

mic cable.

Materials: Stl plate and housi. eeng

Fini: shOff-e. May be painted any whitcolor; take

care to rst seal the ening betwopeen the

capsule and boundary plate.

Net weit: gh2.6 oz. (.6 g). 73

Dimensis: onSee Fig.2.

Fig. 1

Fig. 2

Frequency Response

Frequency in Hz

there.

* 1 pascal = 10 dynes/cm

2

= 10 microbars = 94 dB SPL.

Produktspecifikationer