Electro-Voice UW30 - Manual

UW30

Underwater

Loudspeaker

General Product Description

The UW30 represents a departure in the design of underwater

sound sources. Its unique design, U.S. Patent #3,670,299,

utilizes the case’s structural enclosure as the sound

transducer. This development makes possible a speaker that

has no metal parts exposed to the outside, thus eliminating

rust, corrosion or other causes of short‑life expectancy. The

transducer principle and its strong construction allow the

UW30 to operate at much greater depths than any prior type

of underwater loudspeaker design. The 12.7‑ounce ceramic

magnet and state‑of‑the‑art voice‑coil construction ensure

full‑fidelity response with the lowest possible distortion

throughout its power range.
The UW30 is equipped with a waterproof, 3 conductor 15.24

m (50‑ft.) cable.
The UW30 underwater loudspeaker is designed for permanent

installation and completely submerged operation. All internal

components are encapsulated with a “hot‑melt” (Polyamide

Copolymer) process. The outer case is constructed of

high impact ABS (Acrylonitrile butadiene styrene) plastic.

Ideal for installation in both fresh and saltwater pools, the

UW30 can even be installed in ocean environments without

adverse effect. Problems such as corrosion and electrolysis

damage inherent in all or partial metal underwater speakers

are completely eliminated by the plastic construction of the

UW30.
A single model UW30 will deliver uniform sound throughout

moderate pools, up to 30 by 30 feet. For larger pools, up to

30 by 60 feet, two speakers should be used. If a high level

of turbulence is to be overcome, such as swimming and

diving instruction classes, several speakers should be used.

The noise level in the water will not only be more effectively

overcome, but it will also allow each speaker to be operated at

a lower power level thus avoiding excessive sound intensities

in the immediate vicinity of the speakers.
Underwater speakers are required equipment for many

activities in commercial and luxury resort pools. As specified

by the American Athletic Union, underwater speakers are

required for synchronized swimming events and instructions

in Olympic pools. They are used for water ballets and similar

water shows. When underwater speakers are installed

in resort and private pools, the effect of music played

underwater is truly an enchanting experience.

Specifications:

Versions Available:

UW30

................................. 50 feet of cable (15.24 m)

System Type:

........................... Underwater loudspeaker system

Frequency Response:

......................................... 100‑10,000 Hz

Power Handling, (500‑5,000 Hz pink noise):

............... 30 watts

Impedance:

.......................................................Nominal: 8 ohms

Dispersion:

.......................................Omnidirectional underwater

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Architects’ and Engineers’ Specifications

The underwater loudspeaker shall be the UW30. The case

shall be composed of color impregnated, shatterproof ABS

plastic. Speakers shall not be subject to damage or corrosion

from concentrations of chlorine, acid conditions, electrolysis,

saltwater or ocean environments and such minerals that

may be in solution or suspension in such waters. Frequency

response shall be 100 ‑ 10,000 Hz, and impedance shall

be at 8 ohms. Power‑handling capacity shall be 30 watts

continuous pink noise and dispersion shall be omnidirectional

underwater. Operating depth shall be not more than 10 feet

below the surface of the water. Recommended operating

depth for optimum efficiency shall be not more than 1.2 m

(4.0 ft.). The UW30 loudspeaker shall be equipped with a

15.24 m (50 ft.), 3 conductor waterproof cable terminated

within the internal encapsulation material. Case diameter

shall be 182.6 mm (7.19 in.), and depth shall be 6.63 mm

(2.61 in.). Six 5.54 mm (0.218 in.) holes on a 169.7 mm (6.68

in.) circle shall be provided for mounting. Speaker may be

mounted in a wet‑niche. Finish shall be pool blue. Shipping

weight shall be 1.8 kg (4.0 lb).

Operating Depth:

.... Up to 3.0 m (10.0 ft) below surface of water

Recommended Installation Depth:

....................... 1.2 m (4.0 ft)

Finish:

............................................................................Pool blue

Dimensions,

Overall Diameter:

..........................182.6 mm (7.19 in.)

Depth:

..............................................66.3 mm (2.61 in.)

Shipping Weight:

...................................................1.8 kg (4.0 lb)