Lubell Labs 9484 Underwater
Speaker Kit

The Lubell Labs Underwater
Loudspeaker remains the most popular underwater speaker in
the world since 1968, as it's patented design is louder
and clearer than competing designs and products. This unique
design (U.S. Patent #3,391,385) utilizes a dual-piston PVC
overmolded aluminum enclosure as the sound transducer,
offering true pistonic operation and low Q in a compact
corrosion-free package. Coupled with a powerful 8-cylinder
piezoelectric engine (with efficiencies approaching 60%), no
other brand compares!
Because of the increased interest in water aerobics,
lap swimming, and synchronized swimming, built-in Lubell
9484 underwater speakers have become a standard feature in
Collegiate pools around the world. Coaches appreciate the
ability to effectively
and clearly communicate instructions
to their swimmers via wireless microphones from the
deck. When not coaching, upbeat music with select tempos (or
metronome beats) can be played for swimmers to keep pace in
an enjoyable fashion.
Lubell 9484 underwater loudspeakers have also become a
standard feature in luxury hotel and resort pools worldwide.
Swimming laps to the sound of underwater music, books on
tape, or favorite TV shows is an enjoyable way to exercise!
And in the event of an emergency or inclement weather,
swimmers never miss the announcement to vacate the facility.
The included SP0604C4 Hayward stainless steel wet-niche
(Lubell SKU A9000) should be installed at 6 foot (1.83 m)
depth below the water line by licensed pool contractor /
electrician during new concrete/gunite pool construction.
(Underwater speakers are not offered for vinyl and stainless
steel pools due to poor sound quality.) Niche must be bonded to Equipotential
Bonding Grid per NEC 680.26 (B) and (C) (see drawing & article)
along with all metal parts of pool structure. For home
pools, one unit is recommended for installation in
each 20 foot x 20 foot (6.1 m x 6.1 m) section of the pool.
For deep Collegiate pools, one unit is recommended
for each 37.5 foot x 37.5 foot (11.43 m x 11.43 m) section
of the pool. See "installation location diagrams" link below
for recommended placement locations. Proper
placement and depth is critical for proper sound --
please refer to diagrams below, and call us with any
questions regarding this critical element of the design
stage.
INSTALLATION LOCATION DIAGRAMS: 60'
home pool, 75'
& 90' lap pools, 50
meter Olympic pool
INSTALLATION DEPTH: 6 foot (1.83 m) recommended; 4
foot (1.22m) minimum for shallow end only
FREQUENCY RESPONSE: 100 Hz - 23kHz (450 Hz - 20 kHz
+/-10 dB per US Navy tests)
MAXIMUM SPL: 179 dB/µPa/m
AMPLIFIER REQUIREMENTS:
Constant-Voltage (CV) amp: Connect included AC205B
transformer box to 25V speaker line, allowing 37.5 watt load
for each AC205B / LL916 connected in parallel
Conventional Class-AB amp: 78 watts @ 8 ohms (still
25 Vrms) for each 9484
Amplifier must be UL listed, labeled for Class 2
wiring, and connected to GFCI protected electrical
outlet
ADVANTAGES: Over twice the bandwidth, loudness,
and longevity of competing designs and brands!
EACH 9484 PACKAGE INCLUDES ONE EACH OF
FOLLOWING ITEMS:
A9000 stainless steel
wet-niche (11.5 inch flange, 10 inch body diameter x 7.5
inch depth, 3/4 inch NPT conduit hub)
A9022 stainless steel perforated
grille, 11.125 inch diameter x 5/8 inch height
21007 speaker support, PVC clad
stainless steel
AC205B isolation & matching
transformer box (install in dry indoor area only - one per
speaker - multiple AC205B's in parallel & in phase)
LL916-XXX Lubell underwater speaker
OPTIONS / SHIPPING INFO:
9484-25V-050 (50 foot / 15.24 m attached cable): 26 lbs /
13" x 13" x 22" (11.79 kg / 33.02 cm x 33.02 cm x 55.88 cm)
9484-25V-100 (100 foot / 30.48 m attached cable): 28 lbs /
13" x 13" x 22" (12.7 kg / 33.02 cm x 33.02 cm x 55.88 cm)
9484-25V-150 (150 foot / 45.72 m attached cable): 30 lbs /
13" x 13" x 22" (13.61 kg / 33.02 cm x 33.02 cm x 55.88 cm)
9484-25V-200 (200 foot / 60.96 m attached cable): 32 lbs /
13" x 13" x 22" (13.51 kg / 33.02 cm x 33.02 cm x 55.88 cm)
AT-3425-BR: Order for
all sales outside of North America - adapts A9000 wet
niche's 3/4 inch NPT conduit hub to fit M25 conduit threads
COUNTRY OF ORIGIN: USA
HARMONIZED TARIFF CODE: 8518.90.3000 (A9000 niche, A9022 grille, 21007 speaker support); 8504.31.4065
(AC205B xfmr box); 8518.29.0000
(LL916-XXX speaker)
WARRANTY: 5
year limited
RECOMMENDED AMPLIFIERS (in stock -
call for $): InterM A-120 25V mono mixer
amplifier (for 1 - 3 Lubell 9484); Samson Servo 300
stereo power-amp (for 2 - 4 Lubell 9484); Bosch PLE-1P240-US 25V
mono power-amp (for 4 - 6 Lubell 9484)
DOCUMENTATION: Niche
rough-in guide / pictorial, Installation
guide, depth
and sealing diagram, bonding
diagram, printable
brochure, safety
letter, RoHS/REACH
Compliance Declaration, CE
mark, FAQ
Official Equipment Sponsor USA Synchro
Lubell Labs Inc
712 S Yearling Road
Columbus, Ohio 43213 USA
Tel: +(614) 725-2701
email:
sales@lubell.com