Architects’ and Engineers’ Speciﬁcations

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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PZM-11LLWR specifications

The Crown Audio PZM-11LLWR is a professional-grade boundary microphone that exemplifies high-quality sound capture and versatile applications. Renowned for its exceptional performance, the PZM-11LLWR is designed for both live sound and studio settings, making it an ideal choice for recording environments, theatrical performances, and broadcast applications.

One of the standout features of the PZM-11LLWR is its unique boundary design. This microphone utilizes the Pressure Zone Microphone (PZM) technology, which allows it to pick up sound more effectively by positioning it close to a reflecting surface, such as a wall or a floor. The result is a natural sound pickup with reduced room reflections and increased clarity. This makes the PZM-11LLWR particularly effective for capturing vocal performances, acoustic instruments, and ambient sounds without the unwanted coloration sometimes associated with traditional miking techniques.

The PZM-11LLWR incorporates a low-noise preamplifier, ensuring that it delivers clean audio with minimal interference. The microphone offers a wide frequency response, typically ranging from 20 Hz to 20 kHz, which allows it to reproduce sound across the entire audio spectrum. Additionally, it features a high SPL (sound pressure level) handling capability, enabling it to capture loud sound sources without distortion.

Versatility is also a hallmark of the PZM-11LLWR. The microphone is equipped with a detachable cable, allowing for ease of installation and flexibility in various setups. With a cardioid pickup pattern, it effectively focuses on sound coming from the front while minimizing ambient noise from the sides and rear, further enhancing its performance in noisy environments.

The PZM-11LLWR is built to withstand the rigors of professional use, featuring a robust construction that ensures durability and longevity. Its compact and discreet design makes it easy to integrate into different settings without being obtrusive.

In conclusion, the Crown Audio PZM-11LLWR stands out as a premier choice for professionals seeking reliable, high-fidelity sound capture solutions. Its innovative PZM technology, excellent sound quality, and durable design make it a valuable asset in both live and studio environments, catering to the needs of musicians, sound engineers, and content creators alike. Whether capturing spoken word, music, or environmental sounds, the PZM-11LLWR delivers exceptional performance every time.