HullSonic MAX4 Ultrasonic Antifouling System — 4 Transducers, Superyacht Duty (Formerly CleanAHull)
The flagship. Four commercial-duty channels, 240W of ultrasonic energy, and full integration into the vessel's systems.
MAX4 is everything GLOBAtech learned running ultrasonic systems on commercial vessels, specified for superyachts and serious cruising hulls.
The complete MAX specification
Four independently auto-calibrated channels, each user-configurable from 45–65W and factory-set to 60W — 240W of ultrasonic acoustic energy across the installation. Every channel tunes itself continuously across the 19–80kHz band to the acoustic load of the hull section it's bonded to, because a transducer on a keel root and one on a topside panel are not the same problem.
Channel grouping across two zones
MAX4 can bond its four channels into two matched pairs, driving each pair as a single coherent acoustic zone. On large flat hull sections, sea chests, strainer boxes and box coolers, that's the difference between even coverage and two sources loading the same structure out of step. Or run all four independently. It's your call, per installation.
Integration I/O
- Alarm header — channel fault and system status to the vessel's monitoring or alarm system. On a managed vessel, a failed transducer should raise a flag at the panel, not be discovered at haul-out.
- Isolation input — clean external inhibit for diving operations, hot-work, in-water survey or class inspection, without touching breakers.
- External boost input — trigger BOOST from a VMS, timer or switch for scheduled high-output periods ahead of a lay-up or through peak fouling season.
Where this technology comes from
MAX is the superyacht expression of GLOBAtech's industrial ultrasonic program — heat exchanger and box cooler cleaning, sea chest protection, commercial fleet antifouling. Those systems run continuously on vessels where downtime is measured in thousands of dollars a day. MAX4 is that engineering, packaged for a yacht.
Formerly CleanAHull 4-Channel, now consolidated into HullSonic.
Colour display, WiFi and over-the-air updates
Full-colour per-channel status, drive power, grouping configuration, calibration state and fault reporting. WiFi for configuration, diagnostics and OTA firmware updates — a system that improves after it's commissioned.
12–24VDC auto-sensing
Feature bullets
- Full 4-channel commercial-duty operation — 4 independently auto-calibrated channels
- 45–65W per channel, user-configurable, 60W default — 240W total
- Channel grouping — bond matched pairs into coherent acoustic zones
- Alarm header for vessel monitoring and alarm integration
- Isolation input for diving, hot-work and survey lockout
- External boost input for VMS or timer-triggered operation
- 19–80kHz auto-calibrating sweep per channel
- Full-colour display with live per-channel diagnostics
- WiFi + OTA firmware updates — app-ready for remote monitoring (coming soon)
- ECO / STANDARD / BOOST modes plus programmable sleep
- 12–24VDC auto-sensing input
- Extends antifouling coating life 2–3x
Specifications
| Model | HullSonic MAX4 (formerly CleanAHull 4-Channel) |
| Control module | 4-channel commercial duty, all channels active |
| Transducers supplied | 4 × HS-T50 |
| Output per channel | 45–65W user-configurable, 60W default |
| Total output | 240W |
| Channel grouping | Yes — two matched pairs, or four independent channels |
| Integration I/O | Alarm header, isolation input, external boost input |
| Frequency | 19–80kHz, auto-calibrating per channel |
| Input voltage | 12–24VDC auto-sensing |
| Display | Full-colour |
| Connectivity | WiFi — configuration, diagnostics, OTA firmware |
| Operating modes | ECO / STANDARD / BOOST + sleep function |
| Transducer cable | 32ft / 10m per transducer, extendable to 80m total |
What's in the box
- 1 × HullSonic MAX4 Control Module (4 active commercial-duty channels)
- 4 × HS-T50 Ultrasonic Transducers, each with 32ft (10m) silicone cable
- 4 × HullSonic transducer mounting footprints
- 1 × Tube Loctite 515 transducer gasket material
- 1 × 16ft (5m) silicone rubber battery power cable, pre-attached to the module
- 1 × Transducer installation kit (JB Weld epoxy adhesive and mixer)
- 1 × In-line fuse and spare fuse kit
- 1 × Full-colour installation and operation manual
Please Note: HullSonic ultrasonic anti-fouling systems are provided with 32ft of cable per transducer. Depending on boat size, you may require additional transducer cable to reach the transducer mounting location. Typically this can be extended using the off-cuts from other transducers installed closer to the control module, or using the same type of cable. Contact Us for assistance with extension advise. Lengths can be extended up to 60m. This unit can also be combined with other HullSonic systems to extend protective range and/or anti-fouling intensity.
Ultrasonic Anti-fouling System for use on Hulls & Running Gear
Vessels up to 50’/15m
- Auto-Calibration: Advanced technology to automatically calibrate each channel.
- ECO/STANDARD/BOOST Modes: A convenient built in ECO low power mode is built-in and will reduce the power consumption drastically. For use with lower power solar and wind charging systems. HullSonic also offers the STANDARD mode for normal operation and if required a BOOST mode that will increase the output!
- Sleep Mode Built-in: All HullSonic models come with a built-in sleep mode to shut the output down for 4 or 8 hours. Rest knowing the system will commence protection again automatically.
- True 50 Watts per Transducer: HullSonic HS & MAX generate 50 Watts peak of ultrasonic output per Transducer, thats a 100W peak output! The acoustic sonication generated disrupts and prevents algae and barnacles attaching to your hull.
- Polycarbonate enclosure: Rigid and strong, providing excellent impact resistance IP67 rated.
- Lexan Label: Tough label / button plastic for reliable long life.
- PVC Transducer Housing: Blended flame retardant additive PVC housing for inert ultra long lasting, touch transducer housings
- Anodized Aluminium Footprint: Light weight strong and corrosion resistance anodized transducer mounting pad for easy install and long life
- Silicone Rubber, Tinned Copper Cabling: Only the best long lasting tinned copper silicone rubber cabling for Transducers and DC Power.
- Completely Encapsulated Transducer: Completed sealed / encapsulated and degassed Urethane potting to protect each Transducer.
HullSonic MAX4 Ultrasonic Antifouling System — 4 Transducers, Superyacht Duty (Formerly CleanAHull)
HS200 & HS400 Features
- Voltage
- Control Module
- Display
- Per Channel Output
- Channels
- Power Modes
- Connectivity
- Base Functions
- Additional Functions
- Test & Calibration
- Certifications
- Frequency Range
- Warranty
- Manufacturer
- 12 & 24 VDC Input
- IP67 - Polycarbonate
- Full Colour
- 45-55W user-adjustable, 50W default
- 4 Channels
- ECO / STANDARD / BOOST
- WiFi - Config, Diag, OTA
- Sleep
- None
- Auto Test & Auto Calibration
- CE, FCC, C-tick, ROHS
- 19 - 80kHz - Auto Calibrating
- 3 Years RTB
- Globatech Australia
MAX2 & MAX4 Features (CleanAHull)
- Voltage
- Control Module
- Display
- Per Channel Output
- Channels
- Power Modes
- Connectivity
- Base Functions
- Additional Functions
- Test & Calibration
- Certifications
- Frequency Range
- Warranty
- Manufacturer
- 12 & 24 VDC Input
- IP67 - Polycarbonate
- Full Colour
- 45-65W user-adjustable, 60W default
- 4 Channels
- ECO / STANDARD / BOOST
- WiFi - Config, Diag, OTA
- Sleep, Isolate, Alarm Output
- Boost Input, Heterodyne Auto Grouping
- Auto Test & Auto Calibration
- CE, FCC, C-tick, ROHS
- 19 - 80kHz - Auto Calibrating
- 3 Years RTB
- Globatech Australia
Frequently Asked
Questions
Will it clean a hull that's already fouled?
No. HullSonic is preventative, not curative.
Ultrasonic energy stops organisms establishing; it does not remove barnacles, tube worm or weed that have already attached and hardened. Fit the system to a clean hull — ideally at a haul-out, with fresh antifouling applied — and it protects that clean surface from day one. Fit it to a dirty hull and you are asking it to hold a line that has already been crossed.
If your hull is currently fouled, clean it first. The system will then keep it that way.
Which HullSonic system do I need?
Vessel length is the first filter, and each product page states its coverage. But hull shape matters as much as length — a smaller boat with a deep keel, a large sea chest and a warm-water berth can need more transducers than a larger, flatter hull in cool water.
If you are between two models, send us your hull layout and where the boat lives and we will tell you honestly which one you need. We would rather size it right than sell you more than you need.
Will it work on my hull material?
HullSonic works on fibreglass, aluminium and steel hulls. Each channel auto-calibrates to the acoustic properties of the section its transducer is bonded to, which is exactly why the drive frequency is swept rather than fixed — hull material and thickness change how a transducer loads, and the system measures that instead of assuming it.
Cored, foam-sandwich and heavily insulated sections need mounting-location advice, because the core interrupts the acoustic path. Timber and ferrocement hulls are case-by-case. Contact us with your construction and we will tell you before you order whether it will work, and where the transducers should go.
Will I be able to hear it?
In a quiet cabin, possibly — some owners report a faint periodic tick or chirp through the hull, particularly at night or when the transducers are mounted close to a berth. It is quiet, intermittent, and most owners stop noticing it within a week.
Mounting location makes the difference. If a quiet interior matters to you, tell us when we help you place the transducers.
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Our warranty policy is 3 years for all products.
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