Lightweight 3" Rugged Loudspeaker

Shockproof military loudspeaker for intercom units or personal broadcast devices

Lightweight, Low Magnetic, Waterproof Loudspeaker

For clear speech clarity in hostile environments

This compact loudspeaker is designed to provide exceptional and reliable speech quality in active military environments, both on land and at sea.

The loudspeaker unit is available in standard (375g), lightweight (270g), and low magnetic versions with either 8 or 15 ohms impedance. All three loudspeaker variations are fully watertight (IP67), immersible and shock proof up to 70 g-force in accordance with DEF-STAN 02-557. The speaker is capable of continuous operation without failure or loss of sound quality and is ideally suited for use on critical communication channels. 

Both the standard and lightweight versions can be configured in reverse polarity and all speaker versions can handle significant overloads above their 4W rating.

The loudspeaker units are constructed in two main assemblies; the 'housing' and the 'magnet. The housing is moulded epoxy resin and has an allowance for an 'O' ring which gives a watertight seal when fitted in a suitable enclosure. Internally, the housing is contoured to suit the bonded 'melinex' diaphragm and form an immersion, corrosion and blast resistant assembly. The magnet features contoured pole assembly to protect the diaphragm from blast and a porous disc to equalise pressure whilst still excluding foreign matter.

Standard 3 Inch Loudspeaker

The standard rugged loudspeaker is designed for continuous speech and tone burst sound on board all land vehicles and naval vessels. The speaker is capable of delivering exceptional audio clarity in noisy environments (both above and below deck) while withstanding constant vibration and sudden shock experienced in training and on active operations.

Lightweight Loudspeaker

The lightweight version is designed for tight enclosures and areas where space is at a premium. The speaker provides the same quality audio output and retains the shockproof and waterproof (IP67) qualities which make it suitable for use on both land and at sea.

Low Magnetic Loudspeaker

A low magnetic loudspeaker has been introduced for systems requiring a reduced magnetic field signature, such as on mine hunters, minesweepers and MCMVs or any navigational and search orientated vessels.

The 3" lightweight rugged loudspeaker is currently active on over 12 naval fleets worldwide, including NATO, the United Kingdom, Australia, and New Zealand Royal Navies. 


Rugged 3" Lightweight Loudspeaker datasheet Vitavox 3" Rugged Loudspeaker Unit Datasheet

Vitavox product brochure Vitavox product brochure

Lightweight, standard and low magnetic speakers are avilable

The 3" rugged loudspeaker comes in lightweight, standard and low magnetic versions.

Active Service

The lightweight 3" loudspeaker is currently active on:

The Vitavox Loudspeaker is currently installed on HMS Edinburgh
The Vitavox Loudspeaker is currently installed on HMS Somerset
The Vitavox Loudspeaker is currently installed on HMS Illustrious


Version: Standard Lightweight Low Magnetic Standard Lightweight Low Magnetic
Part Number: VQ88506 VQ88508 VQ88684 VQ88507 VQ88509 VQ88683
NSN: 5965-99 -543-5174* N/A -110-1377* N/A -760-8560* -832-1809*
Input Impedance: 15Ω 15Ω 15Ω
Weight: 375g 270g 270g 375g 270g 270g

84mm dia x 45mm depth 84mm dia x 39mm depth 84mm dia x 39mm depth 84mm dia x 45mm depth 84mm dia x 39mm depth 84mm dia x 39mm depth
Sound Output:
106dBA @ 1m 105dBA @ 1m 105dBA @ 1m 106dBA @ 1m 105dBA @ 1m 105dBA @ 1m
Rated Power: 4W
Frequency Response: 600Hz - 7kHz
Waterproof: IP67
Shockproof: 70 G-force
Overload: 9hrs, including 1hr 25W music and 0.5hrs continuous 10W duty alarm - no subsequent effects on performance.

*Prefix 5965-99 (e.g. 5965-99-832-1809)