2008 Lagoon 420 HH Sound WavesCurrently 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, 4,000W of solar, and a 21.5kW generator, she is ideal for eco-conscious sailors looking to explore the world in quiet, efficient style. This 3-cabin owner's version has seen over $100,000 in recent upgrades and presents in excellent condition.

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)

  • 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.

Disclaimer

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.