Crown Audio MB-4 specifications Architects’ and Engineers’ Specifications, Warranty, Service

MB-4

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SCREWDRIVER

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Architects’ and Engineers’ Specifications

The microphone shall be the Crown model MB-4 or equivalent. The microphone shall be a half-supercardioid electret condenser type. The microphone shall use the principle of phase co- herency achieved by mounting a small-diameter element very near a boundary. This eliminates comb filtering in the audible spectrum.

The microphone will exhibit excellent off-axis response and gain-before-feedback. The MB- 4 shall have a permanently attached 15-foot (4.572-m) cable connected to an XLR-type con- nector with built-in mic electronics. Powering shall be by 12-48V phantom power.

At the output connector, nominal sensitivity shall be 22 mV/Pa. Maximum SPL shall be 120 dB SPL for 3% THD. Equivalent noise shall be 22 dBA nominal. Frequency response shall be 50 Hz to 15 kHz with a uniform off-axis response, about 20 dB down at the rear nulls.

The Crown model MB-4 is specified.

Warranty

Crown professional microphones are guaranteed against malfunction for a period of three years from date of original purchase. See enclosed warranty sheet for additional information.

Service

If the microphone does not function properly, check that it is aimed correctly and is connected as described in this data sheet. If there is hum or no signal, first repair or replace the cable. If the mic is defective, return the microphone and the interface in their original packaging to Crown

Factory Service, 1718 West Mishawaka Road,

Elkhart, IN 46517-9439.

A Service Return Authorization (SRA) is re- quired for product being sent to the factory for service. An SRA can be completed on line at www.crownaudio.com/support/factserv.htm.

For further assistance or technical support call

800-342-6939.

Crown International 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. Mini-Boundary is a trademark, and Crown and Crown Audio are registered trademarks of Crown International. Printed in U.S.A.

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