Crown Audio PZM-11LLWR specifications Architects’ and Engineers’ Specifications, Warranty, Service

4.Run the mic cable through the hole in the elec- trical 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.

If you plan to use an RCA or phone connector: Sol- der the cable shield to the long lug, and solder the AUDIO + lead to the tip or pin. Do not connect the AUDIO – lead because this may reduce the output level in an unbalanced configuration.

6.Attach the power leads to the screw terminals marked “~”. You can use 12-24V AC or DC. Polar- ity 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 present after installation, return the unit to Crown’s service dept. for ground-lift modification.

Fig. 3

Architects’ and Engineers’ Specifications

The microphone shall be the Crown model PZM-11LLWR or equivalent. It shall be a Pressure 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 12-24V AC or 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 hemispherical polar pattern when the microphone is mounted in a wall or ceiling. The Crown PZM-11LLWR microphone is specified.

Warranty

Crown professional microphones are guaranteed against malfunction for a period of three years from date of original purchase. Please refer to the enclosed full warranty statement for more detail.

PZM-11LLWR

Service

If the unit fails to work, recheck all your connec- tions as described in the Installation Section. Check the cables. Also check the power supply to verify that it is supplying correct voltage. A Service Return Authorization (SRA) is required for product being sent to the factory for service. An SRA can be completed on line at www.crownaudio.com/ support/factserv.htm. If service is required, return the microphone in its original packaging to: Crown

Factory Service, 1718 West Mishawaka Road, Elkhart, Indiana 46517-9439. For further assis-

tance or technical support call 800-342-6939.

Crown International, Inc. 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 TEL: 574-294-8000 FAX: 574-294-8FAX www.crownaudio.com

©2008 Crown Audio®, Inc. Specifications subject to change without prior notice. Latest information available at www. crownaudio.com. Crown, Crown Audio, PZM and Pressure Zone Microphone are registered trademarks of Crown International.

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