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Crown Audio MB-100 MB System 4 In/4 Out Electronics Interface for MB1, MB2, MB4



Crown Audio MB-100  MB System 4 In/4 Out Electronics Interface for MB1, MB2, MB4


 

Our Price : $316.05


Product Code: 505338

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Description
 
Designed to accommodate up to four microphones, the MB-100 Interface is a low-profile electronics package easily mounted beneath a table-top. It works with Crown® mini-boundary MB-1, MB-2, and MB-4E microphones and provides four inputs, four outputs and four remote switch inputs.

Each switch input can be programmed for either push-on/off, momentary on, or momentary off operation. In the off position, the MB interfaces provide 70 dB attenuation at the microphone output ensuring absolute quiet even when multiple microphones are in use. This interface for four mics reduces the size and cost of the microphone system and reduces installation time.

The MB-100 provides programmable switching to turn the mic on or off if desired (switches not provided). The MB-200 interface also has remote switch sensing via an optical coupler. Two microphones can be wired to each pluggable terminal block, which plugs into the MB-100 or MB-200 interface. Pluggable terminal blocks are also provided for the balanced outputs on the interface, and for remote switch sensing. The interface is powered by 18 to 48V phantom power from a mixer or a phantom power supply.

Features
• Interfaces Crown MB-1, MB-2, or MB-4/E microphones to a mixer with phantom power
• Interface powers up to four mics via phantom power from mixer and provides four balanced low-impedance outputs
• Pluggable terminal block (Phoenix type) connectors
• MB-100 provides programmable mic switching
• MB-200 also has remote switch sensing via optical coupler

Specifications
  • For microphone specs, see the individual data sheets for the MB-1, MB-2 and MB-4/E.
  • Output impedance: 150 ohms, balanced (recommended load impedance 1000 ohms or greater).
  • Polarity: Positive (inward) pressure on diaphragm produces positive voltage on output terminal 1 with respect to terminal 3, and on terminal 4 with respect to terminal 6.
  • Operating voltage: Phantom power, 18 to 48V DC on output terminals 1 and 3 with respect to terminal 2, and on terminals 4 and 6 with respect to terminal 5.
  • Operating temperature range: –10° to +50° C, or +14° to +122° F.
  • Current drain: 5 mA nominal per mic.
  • Cable connectors (supplied with MB-100 or MB-200 interface):
    • Pluggable terminal block (PTB) for connecting two microphones to two mic inputs on the interface. Two of these PTBs are supplied, for use with up to four mics.
    • PTB for connecting two mic-level outputs to two mixer mic inputs. Two of these PTBs are supplied, for use with up to four mics.
    • PTB for connecting two mic on/off switches (switches not supplied). Two of these PTBs are supplied, for use with up to four mics.

    Each PTB connects to two external circuits (circuits not supplied) that sense closure of the mic on/off switch.

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