Hertz Marine HMS 10 B-C2 10 Inch Sub 2 Ohm Infinite Baffle Subwoofer 250w RMS
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The Hertz Marine HMS 10 B-C2 is a 10 inch (250 mm) infinite baffle marine subwoofer, rated at 250W RMS (500W peak) with a 2 ohm single voice coil. It is sold as a single unit in black and is part of the Hertz Marine HMS range.
This listing is the black finish HMS 10 B-C2. The HMS 10 B is also available in white (HMS 10 B-2).
Key specifications
- Size: 10 inch / 250 mm
- Power handling: 250W continuous, 500W peak
- Impedance: 2 ohm, single voice coil
- Voice coil: 50 mm (2 inch)
- Mounting: infinite baffle (no enclosure needed)
- Cone: polypropylene with UV inhibitors, Santoprene surround
- Depth: 191 mm
- Sold as: single
The HMS 10 B-C2 is a long-throw 10 inch marine subwoofer designed for infinite baffle installation. It handles the lowest frequency range to add bass output and punch, maximising overall system performance. The FEM-optimised high-excursion motor assembly uses a 50 mm (2 inch) voice coil driven by a large magnetic group, maintaining precise control at high SPL levels.
Features
- Engineered and tested for real-world marine conditions: UV, salt-fog, vibrations, water spray, thermal shock and dust.
- Long-throw 50 mm (2 inch) voice coil woofer with polypropylene cone injected with UV inhibitors and co-moulded Santoprene surround.
- Progressive-design aramid fibre spider with silicone-insulated lead wires for durability and consistent performance over time.
- FEM-optimised high-excursion mobile equipment driven by a large magnetic group, encapsulated in a marine-grade polymer injected basket.
- Gold-plated corrosion-resistant brass connection terminals with silicone cap protecting the leadwire junction point.
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Specification
| Size mm (in.) | 250 (10) |
|---|---|
| Power Handling | - Continuous W 250 |
| Power Handling | - Peak W 500 |
| Impedance | Ohm 2 |
| Depth mm (in.) | 191 (7.52) |
| Voice Coil | Type single |
| No Filter Component | 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 B-C2
Hertz
About the Hertz HMS 10 B-C2
From our tech experts at CEN
A marine subwoofer, 10 inch, 2 ohm, built to cope with damp and UV where a car driver would not last a season.
Who it suits
Boats and open builds wanting low end that survives the environment. Infinite baffle designs suit hull spaces where a conventional enclosure is impractical.
Our tech experts advise
Mounting volume and the space behind the driver change the result completely, and the wiring needs marine-grade protection throughout. 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: Does the HMS 10 B-C2 need a box?
A: No. The HMS 10 B-C2 is engineered for infinite baffle installation, so it does not need a dedicated enclosure.
Q: Is the HMS 10 B-C2 sold as a pair?
A: No. The HMS 10 B-C2 is sold as a single subwoofer.
Q: What impedance is the HMS 10 B-C2?
A: It is a 2 ohm single voice coil subwoofer, rated at 250W continuous and 500W peak.
