Crown Audio MB-100 MB-200, Installation, Operation, Architects’ and Engineers’ Specifications

MB-100 MB-200

Fig. 5

TO INTERFACE

“EXTERNAL SWITCH CLOSURE SENSING”

				1 MIC 1 CIRCUIT +
4	3	2	1	2 MIC 1 CIRCUIT –
				3 MIC 2 CIRCUIT +
PTB

4 MIC 2 CIRCUIT –

SENSING CIRCUIT	2K	2K	SENSING CIRCUIT
	9V +	9V +
FOR MIC 2			FOR MIC 1

Fig. 6

Installation

Please refer to the example in Fig. 7 for installation steps.

1.Using the supplied mounting screws, mount the MB-

100or MB-200 interface to the underside of the table in the center.

Note: Interface should be installed within 30 ft (9.15 m) of microphone location.

2.Plug the PTB connected to mics 1 and 2 into MIC 1/MIC 2 IN, etc.

3.Plug the PTB connected to mixer inputs 1 and 2 into MIC 1/MIC 2 OUT, etc.

4.Plug the PTB connected to mic switches 1 and 2 into MIC 1/MIC 2 SWITCH, etc.

Fig. 7

MB-100 OR MB-200 INTERFACE

(UNDER TABLE)

MIC 4

MIC 3

MIC 1

MIC 2

5.If external switch-closure sensing is being used with the MB-200 interface, plug the PTB connected to the sensing circuits for mics 1 and 2 into EXTERNAL SWITCH CLOSURE SENSING (MIC 1/MIC 2), etc.

Operation

1.If on/off switches are installed, turn each mic on in turn and talk into it while seated at the table. The LED should light when the mic is on (unless this function was disabled).

2.Turn up the mixer volume control for that mic to the desired volume.

Architects’ and Engineers’ Specifications

The product shall be a Crown MB-100 (or MB-200) interface or equivalent. It shall power up to four Crown mini-boundary mics. The interface shall be powered by 18 to 48 V phantom power.

The MB-100 shall provide programmable switching to turn the mic on or off if desired (switches not provided). The MB-200 interface also shall have remote switch sensing via an optical coupler.

Pluggable terminal blocks shall be provided for micro- phone inputs. Pluggable terminal blocks also shall be provided for the balanced outputs on the interface, and for remote switch sensing. The Crown MB-100 and MB-200 are specified.

Warranty

Crown professional microphone products are guaranteed against malfunction from any cause for a period of three years from date of original purchase. See enclosed war- ranty sheet for additional information.

Service

If the microphones and interface do not function properly, first double-check the PTB wiring and switch settings as described in this data sheet and in the microphone data sheets. Check for correct microphone orientation.

If you determine the microphone product(s) is defective, return the complete product in it’s orignal packaging to:

Crown Factory Service, 1718 West Mishawaka Road, Elkhart, IN 46517-9439. A Service Return Authoriza- tion (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. For further assistance 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

©2007 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.

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