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Official Lubell Labs underwater speakers, supplied in Europe

Crystal clear music,
under the water

AQUASOM® puts sound inside your pool for hotels, swim clubs, spas and private homes. Portable or built into the wall, it connects to the audio gear you already own and carries up to 5 years of warranty on the underwater speaker.

Get a quote for your pool

Free quote, with no obligation.

Lubell speakers, at the heart of the action

  • Olympic synchronised swimming, from Los Angeles 1984 to London 2012.
  • World Aquatics competitions in 2024, 2025 and 2026.
  • The World Aquatics Championships in Barcelona.
  • Research in underwater acoustics, at sea, in lakes and in test tanks.
  • Professional diving, for diver recall and instruction.
  • Underwater music festivals and events.
  • The pools of great hotels and resorts.
Lubell LL916C blue underwater speaker in its black steel protective cage
LL916C · 200 Hz to 20 kHz

Your European partner for Lubell Labs

Lubell Labs builds the speakers in the USA. MarSensing is its official dealer for Portugal, Spain, Germany, Austria and Gibraltar. From Faro, Portugal, we supply Lubell systems across Europe, recommend the setup that suits each project to the best of our knowledge, and support you after the sale.

Visit lubell.com

The problem

Speakers on the deck go silent the moment you dive

Sound in air bounces off the surface of the water. Swimmers lose the music on every stroke, synchronised teams count beats from memory, and coaches shout to heads that cannot hear them.

The AQUASOM® answer

Put the speaker in the water

Your body is mostly water, so underwater sound reaches you from every direction at once. Background noise from the air disappears. The result feels like a natural hi fi wrapped around you, and it carries the full 200 Hz to 20 kHz range.

What changes when your pool has sound

  • Music guests remember

    Give hotel guests something few resorts offer: relaxation sessions, pool parties and night swims with music under the water.

  • Teams stay on the beat

    Synchronised swimmers and aquagym classes hear every count, even fully submerged in a 50 metre pool.

  • Works with your gear

    Plug in a hi fi, CD player, computer or microphone. The CAWSS system adds Bluetooth for any phone.

  • Built to stay in the water

    PVC and stainless steel construction, safe in salt water, chlorinated and heated pools. Up to 5 years of warranty.

Underwater, the noise of the world disappears.
What remains is music that reaches you from every direction at once.

The range

The full Lubell Labs range, from home pools to the open ocean

Lubell 9484 underwater speaker with stainless wet niche, grille and transformer box

Built into the wall

LL9484 Integrated

The most popular underwater speaker in the world since 1968. Fitted flush in a stainless wet niche during new concrete pool construction, it is standard in club, college and resort pools.

  • Stainless wet niche and grille included
  • Optimum depth 1.5 to 1.8 m
  • 5 year limited speaker warranty
Lubell LL916C underwater speaker inside a black steel cage

Portable, caged

Most chosen

LL916C Portable

Ready to use the day it arrives. Lower the caged speaker into any existing pool, lake or harbour, plug in the cable and play. The steel cage protects it from knocks, which also makes it a favourite for underwater acoustics research.

  • No construction work
  • 7.6 m cable, longer on request
  • 5 year speaker warranty
Lubell LL916H underwater speaker hanging from a black fabric harness

Portable, harnessed

LL916H Portable

The same LL916 speaker in a low profile fabric harness instead of a cage. The economical way to bring sound to a private pool or a training session.

  • Lightest portable option
  • 7.6 m cable, longer on request
  • 2 year speaker warranty
CAWSS Stageman: portable air speaker with built in mixer, caged underwater speaker, transformer box and wireless microphone

Synchronised swimming

CAWSS Stageman

The portable sound system built for synchronised swimming. One battery case plays above and below the surface, streams from a phone and lets the coach talk over the music.

  • Up to 10 hours per charge
  • Separate 100 W amplifiers for air and water
  • UHF wireless mic with voice priority
  • Bluetooth, USB and SD player and recorder
CAWSS Apex Pro air speaker, mixer unit, caged underwater speaker and wireless microphone

Competitive swimming

CAWSS Apex Pro

Louder air and underwater sound for training competitive and synchronised swimmers. Coach through the wireless mic, or play music and beats from a phone.

  • 500 W total, 2 × 250 W peak
  • UHF wireless microphone
  • Bluetooth and digital media player
LL916 Basic System: caged LL916C speaker, AC203E transformer box and a PA amplifier

Competition pools

LL916 Basic System

Enough sound for synchronised swimming in a 50 metre Olympic pool and lap swimming in 25 metre pools. Add air speakers whenever you need them.

  • PA amplifier with microphone and music inputs
  • LL916C speaker with 15 m cord
  • AC203E air and water transformer box
  • Add air speakers whenever you need them
Lubell isolation transformer box with model and amplifier rating table

Build your own system

AC series transformer boxes

Connect Lubell underwater speakers safely to an approved amplifier you already own. Each box isolates the speaker, matches impedance and flattens the response.

  • Models for 50 W to 200 W amplifiers
  • AC203E and AC211 balance air and water zones
  • AC102 drives up to 4 LL916 speakers per channel
AQUASOM Diver kit: caged underwater speaker, push to talk microphone and 60 watt amplifier

Diver paging and research, Lubell System 3400

AQUASOM® Diver

Page divers, play music or project sound for research, in pools, lakes or the open ocean. Runs on 12 V from a dive boat, a battery or a power brick.

  • Typical range up to 500 metres
  • 60 W mixer amplifier with push to talk mic
  • Extra inputs for wireless mic or music player
  • 5 year warranty on the underwater speaker
Lubell System 3300: caged LL916C speaker, siren amplifier and hand microphone

Diver recall with siren

Lubell System 3300

Calls divers back with four oscillating siren modes and two steady tones. The noise cancelling microphone overrides any siren for instant announcements.

  • 500 m typical siren range in open ocean
  • 100 W switch mode amplifier, 12 V
  • Marine radio input for rebroadcast
  • For permanent installation on boats
Lubell LL1424HP transducer in a stainless cage beside its AC1424HP transformer box

Highest output

LL1424HP

Science and defence customers only

Portable underwater acoustic transducer for acoustic and diver deterrent systems, sub bottom profiling, and military or scientific work.

  • 197 dB re 1 µPa at 1 m, 600 Hz
  • 200 Hz to 9 kHz
  • 15 m Subconn cable and transformer box included
  • Depth 1.8 to 12 m
Lubell LL9162 blue transducer in a black shock mount cage

Full range, high power

LL9162

Government sales only

Pistonic piezoelectric transducer for science and defence, including harbour protection. Use it portably or mount it permanently in fresh or salt water.

  • 190 dB re 1 µPa at 1 m, 10 kHz
  • 200 Hz to 20 kHz
  • Depth 1 to 18 m
  • Shock mount cage, 15 m Subconn cable
Lubell LL964C underwater speaker in a black protective cage

Long cable runs

LL964C and LL964H

OEM, military and ocean engineering only

A higher impedance version of the LL916 for acoustic barriers and harbour defence. It runs over cables up to 1.5 km long with minimal loss.

  • 180 dB re 1 µPa at 1 m, 1 kHz
  • 200 Hz to 20 kHz
  • Depth 1.8 to 15 m
  • 5 year warranty caged, 2 year harnessed
Lubell VC2C yellow low frequency underwater transducer

Low frequency

VC2C

Science and defence customers only

Low frequency transducer for marine science, from 50 Hz to 1.5 kHz. You pressurise it topside to match its fixed operating depth.

  • 174 dB re 1 µPa at 1 m, 115 Hz resonance
  • Omnidirectional to 1.5 kHz
  • Depth 3 to 15 m
  • Hand pump and pressure gauge included

Every system is quoted for your project and delivered from our base in Faro, Portugal. Products marked for professional sale are supplied by Lubell Labs to qualified customers only. Full details on lubell.com.

Planning a built in installation?

A first estimate for in wall speakers

For speakers built into the pool wall, such as the LL9484, a common rule of thumb is about one speaker for every 6 metres of pool length. It is only a starting point: the shape and depth of the pool and the way it is used all change the answer.

Portable systems, such as the CAWSS, work differently and do not follow this rule. One portable speaker can often serve a whole pool.

Start with your pool length

Try 12 for a home pool, 25 for a club pool, or 50 for an Olympic pool.

Applications

Wherever people go under the surface

Hotels and resorts

Music under the water, for relaxation or just for extra fun in the pool. An experience guests will enjoy and tell their friends about. Built in speakers keep the pool looking untouched.

Private pools

Your own playlist while you swim lengths or float. A portable LL916 is in the water and playing within an afternoon. Building a new pool or planning a major renovation? The speakers can go into the wall.

Spas and therapy

Underwater music relaxes body and mind, and supports a wide range of therapies that take place in the water.

Public pools and sport centres

Synchronised swimming, aquagym and hydrogymnastics. Instructors play music straight from a portable player.

Dive schools and open ocean

Diver recall and instruction in poor visibility or across large work sites, powered from a battery pack or the boat.

Research

Research in underwater acoustics in the marine environment: sound propagation, underwater communications and acoustic experiments at sea, in lakes and in test tanks.

How it works

From first email to first dive in three steps

  1. 1

    Tell us about your pool

    Length, depth, water type and what you want to play. New build or existing pool.

  2. 2

    We recommend a system

    Our underwater acoustics team suggests speakers, amplifier and placement to the best of our knowledge, and sends you a quote.

  3. 3

    Plug in and dive

    Portable speakers go straight into the water. Built in speakers are fitted into a wall niche by your pool builder and electrician.

Diagram: a music source feeds an amplifier on the pool deck, which drives a built in wall speaker and a portable caged speaker underwater Your music Amplifier Built in LL9484 Portable LL916C
One amplifier can feed several underwater speakers, built in, portable or both.

Questions pool owners ask us

How many underwater speakers does my pool need?

It depends on the pool and on the type of installation. For speakers built into the wall, a rule of thumb is about one speaker for every 6 metres of pool length, but the shape, depth and use of the pool all change the answer. Portable systems work differently: a single portable LL916 can often fill a whole pool. Tell us about your pool and we will recommend a setup to the best of our knowledge.

Can I install AQUASOM® in an existing pool?

Yes. The portable LL916C and LL916H hang into the water and plug into the amplifier with no construction work. The built in LL9484 suits new pools or pools under maintenance.

Does it work in salt water, chlorinated or heated pools?

Yes. The speakers are built from PVC and stainless steel and are compatible with salt water, chlorination systems and heated pools.

Can I use my existing music system?

Yes. The amplifier accepts a hi fi system, CD player, computer or microphone. The CAWSS system adds Bluetooth for phones and tablets, plus a USB and SD player.

Do I need stereo underwater?

No. Underwater we cannot tell which direction a sound comes from. The amplifier mixes the available channels into one signal for the water, so nothing is lost.

How deep should the speaker go?

Around 1.5 to 1.8 metres is ideal. The speaker also works at shallower depths, with a little less bass and volume, so it suits most residential pools.

What warranty do I get?

LL916C speaker: 5 years. LL9484 speaker: 5 year limited warranty. LL916H speaker: 2 years. The warranty of each product is listed on its own page.

How far does the sound travel in open water?

A single speaker reaches typical ranges of up to 500 metres at a level that is safe for divers, which is why dive schools use it for recall.

Who is behind AQUASOM®?

MarSensing Lda is the official Lubell Labs dealer for Portugal, Spain, Germany, Austria and Gibraltar, serving customers across Europe from Faro, Portugal. We were founded in December 2007 as a spin off from the Signal Processing Laboratory (SiPLAB) at the University of the Algarve, with funding from the NEOTEC programme. Our team of scientists and engineers works in underwater acoustics. Lubell Labs designs and builds the speakers in the USA, see lubell.com.

Hear your pool
for the first time

Call or email us with your pool details. Our underwater acoustics team recommends a system to the best of our knowledge and replies with a quote, free and with no obligation.

  • Up to 5 years of warranty on the underwater speaker.
  • Free quote with no obligation to buy.
  • Based in Europe supplied and supported from Faro, Portugal.
  • Advice from scientists who have researched underwater acoustics since 2007.

To help us answer quickly, please tell us

  • Pool length, width and depth
  • Type of venue: home, hotel, club, spa or open water
  • The product you are interested in, if you know it
  • Your country, and whether the pool is new or existing

Centro Empresarial Gambelas, Pavilhão B1, Campus de Gambelas, 8005-139 Faro, Portugal