The compact submarine loudspeaker is waterproof (IP68), pressure proof (703m) and shock tested to the maximum requirement of submarine bridge hardware for use as an external broadcast or intercom loudspeaker in marine environments on board military class submarines and submersible vessels. The compact loudspeaker also acts as a talkback microphone for use in the submarine dive chamber.
Astute Class Submarine Loudspeaker
The unit is a re-engineered version of the Vitavox standard submarine loudspeaker and was purposefully designed to fit the requirements of the Astute Class Submarine Programme. The compact submarine loudspeaker is an effective replacement for the 5965-00-583-4106 Permanent Magnet Loudspeaker (NH200, C6518, LS450/B, LS450B, 815-1853087). The unit having the advantage of being twice the output volume (up to 20W), more rugged in construction and with no terminals exposed to sea water. This allows the unit to function fully while wet and ensures there is no rusting, corrosion, or problems. This unit is also not subject to ITAR restrictions being of full UK manufacture and design.
These loudspeakers are individually pressure tested as watertight to 69 bar and each speaker is is x-rayed to ensure casting composition and integrity. The loudspeaker consists of a pressure-tight chamber formed by a body casting of high tensile naval bronze and an outer chamber which houses the speaker cone. The talkback loudspeaker is capable of withstanding the most demanding marine environments.