Microphone Installation - Bose FreeSpace 4400 Installation Manual

Microphone installation

The wall plate-microphone assembly can be installed using a single-gang
junction box, or the microphone can be removed from the wall plate and
mounted directly on a flat surface.
Single-gang junction box installation Surface-mounted mic
Recommended wire length
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Up to 2000 feet (610 m) max., 24 AWG (0.2 mm ) shielded twisted pair (shield
tied to minus at FreeSpace 4400 system, floated at sense mic).
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Note: Cable for use in-wall must be CL or CM rated for the application
(plenum use, riser use, general use etc.) per the National Electrical Code
(NEC).
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