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Since 1969, Lubell Labs has been manufacturing the world's most popular and powerful underwater loudspeakers. With their heavy-duty construction and documented broadband performance recognized by the US Navy, Lubell underwater speakers have become the top choice for professional sound engineers globally. The Lubell LL916C was selected over international competitors for use at the Sydney 2000 and London 2012 Olympic Games, the Manchester 2002 Commonwealth Games, and the Aquarius Underwater Habitat in the Florida Keys.

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UW30 Underwater Speaker and Accessories

The University Sound UW30 underwater speaker is an economical moving-coil speaker produced by Electrovoice, a division of Bosch Security and Safety Systems. The UW30 offers a remarkably consistent response, within +/- 4 dB, across the frequency range of 80 Hz to 1300 Hz, with a total sound level of 125 dB referenced to 1 µPa/V at a distance of 1 meter. This speaker is suitable for various applications, including synchronized swimming in small home pools, marine biology studies, environmental impact assessments in aquariums and tanks, and relaxation during Watsu (aquatic massage) and flotation tank sessions.

To ensure the safety of personnel and swimmers at aquatic facilities, the UW30 speaker must be mounted within a corrosion-resistant metal shell. The front side of the shell should be enclosed by a captive corrosion-resistant metal speaker grille that is securely bonded to the shell, ensuring a low-resistance contact. This mounting requirement is specified in the 2005 NFPA 70: National Electrical Code (NEC) Handbook Section 680.27, as well as in the 2003 International Residential Code (IRC) Paragraph E4106.9.1.

Additionally, the UW30 underwater speaker should be connected to a UL or ETL-approved 30-40 watts commercial sound amplifier using the 8-ohm and Common transformer-isolated speaker terminals labelled "Class 2 Wiring Acceptable." The amplifier must be installed in a dry, air-conditioned area, and its three-prong grounding power cord should be connected to a GFCI-protected AC outlet, which must be tested according to the manufacturer's instructions.

Features

Model: University Sound UW30

Construction: Moving-coil with 12.7-ounce ceramic magnet, pool-blue ABS casing

Rated Frequency Response: 100 Hz - 10 kHz (TVR plot)

Maximum Output Level: 153 dB at 150 Hz (SPL plot)

Rated Power Handling: 30 watts (15.49 Vrms) 500-5000 Hz pink noise

Rated Impedance: 8 ohms nominal (Z plot)

Directivity: Omnidirectional (50 Hz-3 kHz)

Operating Depth: 4 feet (1.22 m) optimum, 10 feet (3.05 m) maximum

Cable: 50 feet (15.24 m) 18 AWG 3 conductor TPE SJEOOW, bare termination

Certifications: UL, CE

Net Weight / Dimensions: 6.0 pounds (2.72 kg) / 7.2 inch (18.3 cm) diameter x 2.7 inch (6.86 cm) axial length

Shipping Weight / Dimensions: 6.5 pounds (2.95 kg) / 8" x 8" x 6.5" (20.32 cm x 20.32 cm x 16.51 cm)

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