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UW 30
• Full-range underwater sound source
• Uniform sound throughout medium-sized pools
• Very high-fidelity sound
• Salt-water resistant
• Comes with a 50-foot (15-m), three-conductor
waterpr
oof cable terminated within the internal
encapsulation material
UW 30 S-40
Frequency range 100 Hz–10 kHz 85 Hz–20 kHz (+/- 3dB)
Sensitivity (SPL 1W/1m) — 85 dB
Max. SPL/1m (calc.) — 113 dB
Long-term power handling 30 W 160 W
Short-term power handling — 640 W
Coverage (H° x V°) omni (underwater) 100° x 100°
Directivity Index 9.8 dB (+3.8/-3.6 dB)
— 2 kHz–20 kHz
LF driver special type 5.25"
HF driver — 1" Softdome
Crossover frequencies — 3,500 Hz
Nominal impedance (low Z version)
8
Ω
4
Ω
Minimum impedance (low Z version) — 3.7 Ω
Input connections
waterpr
oof cable
spring terminal
Dimensions (H x W at fr
ont x D)
183 mm [diameter] x 66 mm [D] (7.19" [diameter] x 2.61" [D] ) 249 x 178 x 150 mm (9.8" x 7" x 5.9")
Net weight (including mounting bracket) 1.8 kg (4 lbs.) 2.6 kg (5.7 lbs.)
The UW 30 represents a departure from conventional designs
of underwater sound sources. Its unique, patented design uses
the case´s structural enclosure as the sound transducer. Under-
water speakers are required equipment for many activities in
commercial, luxury resort pools and synchronized swimming
events or instructions in Olympic pools. They are used for
water ballets and similar water shows. UW 30 has a high-
fidelity sound with low distortion, and the effect of music
played underwater through it is truly enchanting.
The outer case of UW 30 is made of high-impact ABS and is
pool-blue in color. All internal components are sealed inside
the speaker through a “hot-melt” process, allowing it to be
used in fresh- or salt-water pools or ocean enviroments.
Sound dispersion is up to 30 x 30 feet (10 x 10 m) under
water. Operating depth is up to 10 feet (3 m), with a recom-
mended depth of 4 feet (1.2 m). Note: For overload pr
otec-
tion, install a 25-ohm, 20-watt resistor in parallel with a 1.5-
amp, fast-blowing fuse in series with the speaker.
S-40 B
• Two-way, full-range ultracompact
•
Ultra-linear frequency response
• Vented LF enclosure
• Full bandwidth protection circuit for
woofer and tweeter
• Ferrofluid-cooled soft-dome tweeter
• Trapezoidal
• 2 x 1/4"–20 suspension points
EV
®
’s S-40 produces maximum frequency response with an
extended bass response. The sensitivity, therefore, is slightly
less than with a regularly tuned box. The S-40 is made of
black or white high-impact polystyrene structural foam pro-
tected with a full-size, matching front grille.
Ultracompact monitor system
Underwater loudspeaker