S/V HH Sound Waves — a 2008 Lagoon 420 located in Bocas del Toro, PA, for sale by broker. Responses to inquiries may come from a broker who is representing the owner as a fiduciary.
2008 Lagoon 420 HH Sound Waves, currently located in the Caribbean.
A true pioneer in hybrid-electric cruising, HH Sound Waves is a meticulously maintained Lagoon 420 that blends luxurious liveaboard comfort with sustainable, off-grid performance. With extensive upgrades, including dual electric propulsion motors, 4,000 W of solar, and a 21.5 kW generator, she is ideal for eco-conscious sailors looking to explore the world in quiet, efficient style. This three-cabin owner’s version has seen over $100,000 in recent upgrades and presents in excellent condition.
No known accidents, delamination, keel damage, dismasting, or structural issues reported.
Features
- Electric hybrid propulsion: 2x Electric 72V motors (14.5 kW each); propulsion batteries replaced 2023 (48x 3.2V lithium)
- 4,000 W solar array with Victron lithium house bank upgrade (4x Victron Smart Lithium 24V 200Ah, 2022)
- 21.5 kW generator (installed 2018) with ~2,500 hrs; runs ~1 of every 34 motoring hours — claimed 3,000+ mile range on a tank
- Inverter 12.5 kW, both 110V & 220V shore power — off-grid/long-term cruising setup
- Watermaker 17 GPH (Watermaker Inc.) and washer — liveaboard-capable systems
- Standing rigging replaced 2022; running rigging replaced 2022–2025; windlass upgraded/new 2023
Specifications
| Name | S/V HH Sound Waves |
| Make | Lagoon |
| Model | 420 |
| Year | 2008 |
| Type | Multihull Sailboat |
| Builder | Cnb-Lagoon-France |
| Designer | Van Petheghem/Lauriot Prevost |
| Construction | Fiberglass polyester and vinylester resin and Foam sandwhich hulls - white gelcoat. Solid glass under waterline |
| Cabins | 3 |
| Heads | 3 |
| Galley | Up |
Dimensions
| Loa | 42 ft (12.8 m.) |
| Lwl | 40 ft 4 in (12.3 m.) |
| Beam | 24 ft 7 in (7.5 m.) |
| Headroom | 6 ft 7 in (2 m) |
| Draft | 4 ft 2 in (1.27 m.) |
| Mast Height | 68' 0" (20.7 m.) |
Tankage
| Fuel Tanks | 160 gallons |
Performance
| Engines | Electric 72v 14.5 kw 18 HP / Electric 72v 14.5 kw |
| Generator | 21.5 kW |
| Gen Hours | 2500 |
| Wiring | Both 110v & 220v |
| Displacement | 30,000 lbs / 13,382kg |
| Speed | Cruising Speed: 8 knots @ 2800 RPM |
| Sails | Mainsail: Functional; new spare on board Headsail (Jib): Functional Spinnaker: Lightly used, in good condition |
Layout Diagram
Inventory
Vessel details
- Model: Lagoon 420
- Builder: Lagoon (France)
- Launched: 2008
- LOA: 41.3 ft
- Beam: 24.58 ft
- Draft: 4.16 ft
- Displacement: 16,040 lbs
- Construction: Fiberglass hull and deck
- Keel type: Twin keel
- Rudder type: Spade
- Drive stations: 1
- Antifouled: January 2025
- Exterior finish: Gelcoat last polished January 2025
- Registration: USA
Propulsion
- Engines: 2x Electric 72v motors (14.5 kW each)
- Engine years: 2018 & 2023
- Horsepower: 18 hp each
- Cruising speed: 5 knots
- Max speed: 6.5 knots
- Drive type: Shaft
- Fuel type: Hybrid (generator-assisted)
- Fuel capacity: 160 gallons
- Propellers: 17"
- Generator: 21.5 kW, approx. 2,500 hrs
- Fuel efficiency: Generator runs ~1 out of every 34 hours of motoring
Power & electrical
- Battery bank: 4x Victron Smart Lithium 24v 200Ah (House, 2022)
- Battery bank: 48x 3.2v Lithium (Propulsion, 2023)
- Battery system: 48v house, 72v propulsion, 12v converted
- Battery chargers: Sunpower Gold 100A, 2x Dakota 15A
- Inverter: 12.5 kW
- Shore power: Both 110v & 220v
- Solar: 9 panels, 4,000 watts total
- Watermaker: 17 GPH, Watermaker Inc.
- Air conditioning: Dometic (cabins), VelAir (salon)
- Heating: Reverse cycle AC
- Washer: Yes
Electronics
- Navigation suite: Raymarine (Depth, Log, Wind, Radar, Autopilot)
- Chartplotter: Raymarine Axiom 12
- GPS: Raymarine
- Stereo: Fusion with 2 radios
- TV: 32 flat screen
Accommodations
- Cabins: 3
- Berths: 4 (3 doubles, 1 saloon berth)
- Headroom (Master): 6'5"
- Bathrooms: 3 heads, 4 showers (1 external on sugar scoop)
- Toilets: Electric freshwater
- Hot water system: 11 gal, electric
- Galley: Central with triple sink, 2x 12v fridges, 1x 12v freezer, microwave, oven/stove
- Additional galley notes: Gas alarm, no dishwasher or icemaker
Rigging & sails
- Standing rigging: Replaced 2022
- Running rigging: Replaced 20222025
- Mainsail: Functional; new spare on board
- Headsail (Jib): Functional
- Spinnaker: Lightly used, in good condition
- Bowsprit: Yes
- Winches: 5 total, 2 electric
- Furlers: Yes
- Main reefing: 2 reefs, helm-controlled
Safety equipment
- Life raft: New August 2022
- Life jackets: 8
- Flares: New 2022
- EPIRB: New August 2022
- Fire extinguishers: New 2022
- Bilge pumps: 2 per hull (manual and electric)
- Other: First aid kit, life ring, harnesses, bosuns chair
Ground tackle
- Primary anchor: 30kg Bruce, 70m of 10mm chain
- Spares: 22kg plow, 20kg Danforth
- Windlass: Upgraded, new in 2023
Accessories & extras
- Davits: Yes
- Swim ladder: Yes
- Cockpit cushions: Yes
- Deck shower: Yes
- BBQ: Yes
- Spare lines/fenders: Plenty
- Tender/Outboard: Not included
- Water toys: Not included
Refit & maintenance
- 2018: New generator, navigation suite, A/C units, and electric propulsion
- 2022: Full solar and battery upgrade for long-term off-grid use
- Ongoing: Generator serviced every 250 hours, light mechanical needs
Sailing history
- Launched: France, 2008
- Previous base: Florida (20082022, minimal use)
- Current use: ~10,000 miles through the Caribbean since 2022
- Reason for sale: Pursuing land-based investments
Special features
- Among the first Electric-Hybrid sailing catamarans
- Can motor 3,000+ miles on a tank with smart generator use
- Continuously upgraded to keep up with evolving technologies
- Off-grid ready: solar, lithium, watermaker, and ample power
Damage disclosure
- No known accidents, delamination, keel damage, dismasting, or structural issues reported.
Exterior Photos
Deck Photos
Interior Photos
Other Photos
