Hertz Marine HMS 10 S2-LD-G.1 10 Inch Sub 2 Ohm RGB LED Subwoofer 300w RMS
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The Hertz Marine HMS 10 S2-LD-G.1 is a 10 inch (250 mm) marine subwoofer rated at 300W RMS (600W peak) at 2 ohms, with integrated RGB LED lighting and a removable sport grille. It is part of the Hertz Marine range, carries IP65 protection, and is sold as a single unit.
This listing is for the HMS 10 S2-LD-G.1 (green grille finish). A sister model with a different grille finish is the HMS 10 S2-LD-SW.1. The RGB LEDs are controlled with the separately available HM RGB 1 BK controller.
Key specifications
- Size: 10 inch / 250 mm
- Power handling: 300W continuous, 600W peak
- Impedance: 2 ohm
- Depth: 116 mm (4.56 in)
- Voice coil: 50 mm (2 inch)
- Protection: IP65, ASTM-D4329 UV resistance, ASTM-B117 salt fog
- Lighting: integrated RGB LED (requires HM RGB 1 BK controller, sold separately)
- Grille: removable, paintable sport grille
- Sold as: single unit
The HMS 10 S2-LD-G is designed for infinite baffle installation — no dedicated enclosure required. The motor and suspension are optimised for high-power infinite-baffle operation, with long linear excursion for high output and low distortion. Adding a dedicated subwoofer also frees your main speakers from reproducing the lowest frequencies, improving overall system performance.
Features
- Integrated RGB LED lighting, controllable via the HM RGB 1 BK accessory.
- Sound-transparent sport grille, easily removable and paintable to match your vessel.
- Hertz Pure Marine Certified: IP65 protection, ASTM-D4329 UV resistance and ASTM-B117 salt fog operability.
- Long-throw 50 mm (2 inch) voice coil with polypropylene cone injected with UV inhibitors and co-moulded Santoprene surround.
- Progressive-design aramid fibre spider with silicone-insulated lead wires for long-term durability.
- FEM-optimised high-excursion motor assembly housed in a marine-grade polymer injected basket.
- Gold-plated corrosion-resistant brass terminals with silicone cap protecting the leadwire junction.
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Specification
| Size mm (in.) | 250 (10) |
|---|---|
| Power Handling | - Continuous W 300 |
| Power Handling | - Peak W 600 |
| Impedance | Ohm 2 |
| Depth mm (in.) | 116 (4.56) |
| No Filter Component | 2Ω SPORT LED SUBWOOFER |
| Voice Coil | Ø 50 (2) |
| Magnet | size D x d x h mm (in.) 140 x 60 x 30 (5.51 x 2.36 x 1.18) |
| Weight | of one component kg (lb.) 5,1 (11.24) |
| Magnet | High density flux ferrite |
| Cone | Polypropylene with UV inhibitors |
| Xmech mm (in.) | ±16.3 (0.64) |
What's Included
- HMS 10 S2-LD-G.1
Hertz
About the Hertz HMS 10 S2-LD-G.1
From our tech experts at CEN
Marine-grade 10 inch coaxial speakers handling 300w RMS, built with UV-stable materials and corrosion-resistant hardware for life in sun, salt and spray.
Who it suits
Boats, ribs and open builds, and campers with an outdoor listening area. Anything mounted where rain reaches it should be marine-rated, whatever the vehicle.
Our tech experts advise
In a marine install the wiring decides longevity: tinned cable, sealed joints and a properly fused feed. Mounting position affects the sound more than the speaker choice, because there are no cabin walls to help you. get in touch and we will talk through mounting, wiring and power for your boat.
Explore the full Hertz range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Hertz
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Frequently Asked Questions
Q: What makes marine speakers different from car speakers?
A: Marine speakers are built with UV-stable, water-resistant cones, grilles and hardware designed for open-air and wet environments. They are the right choice for boats, jet skis, hot tubs and outdoor installs.
Q: Are these speakers fully waterproof?
A: Marine speakers are water-resistant to marine ratings rather than submersible. The IP rating, where provided, is listed in the Specification tab.
Q: Do I need a marine amplifier as well?
A: For best results, yes. Marine amplifiers carry conformal-coated boards that resist moisture and salt air. Match the amplifier to the RMS rating in the Specification tab as you would with any system.
Q: Will these work outside of marine use?
A: Yes. Marine speakers are popular for motorcycles, quads, hot tubs, garden bars and anywhere the weather reaches. Their durability makes them a strong outdoor choice.
Q: Can the grille on the HMS 10 S2-LD-G.1 be painted?
A: Yes. The sound-transparent sport grille with built-in LEDs can be removed and painted to match your boat.
Q: Is the HMS 10 S2-LD-G.1 waterproof?
A: It carries the Hertz Pure Marine certification with an IP65 protection grade, plus ASTM-D4329 UV resistance and ASTM-B117 salt fog standards.
Q: Does the HMS 10 S2-LD-G.1 need an enclosure?
A: No. It is designed for infinite baffle installation without a dedicated enclosure.
