4. Run the mic cable through the hole in the
electrical box. Service the end of the mic cable.
5. Connect the mic cable
’s audio hot lead to the
terminal labeled AUDIO+. Connect the audio cold
lead to the terminal labeled AUDIO
–. Connect the
cable shield to the terminal labeled GROUND.
6. Attach the power leads to the screw terminals
marked
“
~
”
. You can use 12-24 V ACor DC.
Polarity does not matter in either case.
7. Using the two shorter screws provided, attach
the mic to the electrical box. Then use the other
two screws to secure the louvered wall plate to
the microphone. Do not remove or damage the
plastic membrane.
8. If the mic cable is run in metal conduit, ground
loops can occur that can cause hum. If hum is
Fig. 3
present after installation, return the unit to
A K G / C r o w n
’s service dept. for ground-lift
modifica tion.
Architects
’ and Engineers’ Specifications
The microphone shall be the A K G / C r o w n model
PZM11 LL WR or equivalent. It shall be a Pres-
sure Zone Microphone, mountable in a wall or
ceiling, and designed not to look like a
microphone. It shall have a line-level output
(1.4 V/Pa unloaded) and be powered by
12-24 V ACor DC, or phantom power. The
frequency response shall be from 80 Hz to
10,000 Hz with a low-frequency rolloff to reduce
rumble and high-frequency boost for articulation.
The audio connector and power connector shall
be screw terminals. Output shall be balanced,
low impedance. The
electret condenser
transducer shall have a hemi- spherical polar
pattern when the microphone is mounted in a
wall or ceiling. The A K G / C r o w n PZM11 LL WR
microphone is specified.
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 original purchase. Please refer to the
enclosed full warranty statement for more detail.
Service
If the unit fails to work, recheck all your connec-
tions as described in the Installation Section.
Check the cables and gain resistor. Also check
the power supply to verify that it is supplying
correct voltage. 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
+43 676 83200 888.
AKG ACOUSTICS GMBH
LAXENBURGERSTRASSE 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
PZM11 LL WR
