MB-4

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

MB-4 specifications

Crown Audio MB-4 is a high-performance power amplifier that has garnered attention in the professional audio industry for its robust performance, reliability, and advanced technology features. Designed for both mobile and fixed installation applications, the MB-4 is an excellent choice for audio engineers and sound professionals seeking exceptional sound reproduction and efficiency.

One of the primary attributes of the Crown Audio MB-4 is its powerful output capability. Delivering up to 4,000 watts of power at 4 ohms, this amplifier is capable of driving a wide range of speakers, making it suitable for large venues, concerts, and public address systems. The MB-4 utilizes Crown’s proprietary Class I technology, which enhances efficiency while maintaining high-quality sound. This technology ensures that the amplifier produces less heat, allowing for longer usage without the risk of overheating.

The Crown MB-4 features advanced DSP (digital signal processing) capabilities, allowing users to tailor the audio output to meet specific needs. With a built-in EQ, crossover control, and delay settings, users can achieve optimal sound quality and performance in any environment. This level of customization is crucial for professional audio applications where precision is key.

Another significant feature of the MB-4 is its comprehensive protection circuitry. The amplifier is equipped with thermal and short-circuit protection systems that automatically engage to safeguard both the unit and connected speakers. This ensures reliable operation over extended periods, even under demanding conditions.

Crown also emphasizes user-friendly design with the MB-4, making it accessible for both experienced and novice users. The front panel includes LED indicators for power and output status, providing clear visual feedback on the amplifier's performance. The sturdy construction of the MB-4 ensures durability, making it suitable for road use and various environments.

In terms of connectivity, the Crown Audio MB-4 offers multiple input and output options. It supports both balanced XLR and 1/4” TRS inputs, providing versatility in connecting various audio sources. The output connections are designed to accommodate a wide array of speaker configurations, ensuring seamless integration into existing audio setups.

Overall, the Crown Audio MB-4 stands out as a powerful, versatile, and reliable amplifier that meets the demands of professional audio applications. With its advanced technologies and robust features, it offers an exceptional listening experience, making it a valuable addition to any sound system.