Hertz Marine HMX 7.7 S-LD-SW 7.7 Inch 2 Way RGB LED Coaxial Speakers 100w RMS
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The Hertz Marine HMX 7.7 S-LD-SW is a 7.7 inch (196 mm) 2-way marine coaxial speaker rated at 100W RMS (200W peak) at 4 ohms, with integrated RGB LED lighting and a paintable sport grille. It is part of the Hertz Marine HMX range.
This listing is the S-LD-SW (sport paintable grille version). The HMX 7.7 is also available with a standard grille in the Hertz Marine HMX 7.7 S-LD-G.
Key specifications
- Size: 7.7 inch (196 mm)
- Power handling: 100W RMS, 200W peak
- Impedance: 4 ohm
- Mounting depth: 113 mm (4.4 in)
- Frequency response: 45 Hz to 25 kHz
- Tweeter: 36 mm (1.4 in) PEI dome, neodymium magnet
- Woofer voice coil: 32 mm (1.26 in)
- Weight: 1.66 kg per speaker
- Lighting: integrated RGB LEDs (HM RGB 1 BK accessory)
The HMX 7.7 S-LD-SW is built for open-water use. Its ASA plastic sport grille is paintable to match sporty boats, while the polypropylene cone with co-moulded Santoprene surround and Aramid fibre spider with silicone-insulated lead wire ensure lasting performance in harsh marine conditions.
Features
- Integrated RGB LED lighting, used in combination with the HM RGB 1 BK accessory.
- Hertz Pure Marine Certified: IP65 protection grade, ASTM-D4329 UV resistance and ASTM-B117 salt fog operability.
- 1.4 in neodymium magnet tweeter with PEI dome, faceplate and acoustic lens optimised for off-axis dispersion and high SPL.
- Sound-transparent sport grille for efficient high-frequency transfer and solid protection.
- Long-throw 32 mm (1.26 in) voice coil woofer tuned for infinite baffle applications.
- Sealed built-in crossover with resettable solid-state tweeter protection circuit.
- Gold-plated corrosion-resistant terminals.
Explore the full range in Hertz Marine Speakers & Subwoofers.
Specification
| Component | HI-END LED COAX |
|---|---|
| Size mm (in.) | 196 (7.7) |
| Power Handling | - Continuous W 100 |
| Power Handling | - Peak W 200 |
| Impedance | Ohm 4 |
| Depth mm (in.) | 113 (4.4) |
| Tweeter diaphragm mm (in.) | 36 (1.4) |
| Woofer Voice Coil Ø mm (in.) | 32 (1.26) |
| Tweeter Voice Coil Ø mm (in.) | 20 (0.8) |
| Frequency Response | Hz 45 ÷ 25k |
| Woofer Magnet size D x d x h mm (in.) | 90 x 40 x 20 (3.54 x 1.57 x 0.79) |
| Tweeter Magnet size D x h mm (in.) | 19,7 x 3 (0.78 x 0.12) |
| Weight | of one speaker kg (lb.) 1,66 (3.66) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Polypropylene with UV inhibitors |
| Dome | PEI |
| Xmech mm (in.) | ±8,5 (0.33) |
What's Included
- HMX 7.7 S-LD-SW
Hertz
About the Hertz HMX 7.7 S-LD-SW
From our tech experts at CEN
The Hertz Marine HMX 7.7 S-LD-SW is a 7.7 inch (196 mm) 2-way coaxial marine speaker rated at 100W RMS (200W peak) at 4 ohms, with integrated RGB LED lighting and a paintable ASA plastic sport grille. It carries IP65 protection, ASTM UV resistance and ASTM salt fog certification for open-water use.
Who it suits
This speaker suits boat owners who want powerful audio with RGB lighting in a demanding marine environment. The paintable sport grille is aimed at those who want a coordinated look on sporty vessels. Browse the full range at the Hertz collection.
Our tech experts advise
Mounting depth is 113 mm, so measure your panel recess carefully before fitting. RGB lighting requires the HM RGB 1 BK accessory, which is sold separately. The sealed built-in crossover and resettable tweeter protection circuit mean no manual crossover setup is needed. If you want to add a subwoofer to your boat, the Hertz PowerSports HMP 1D is a dedicated marine mono amplifier worth considering.
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: What size is the HMX 7.7 S-LD-SW?
A: The HMX 7.7 S-LD-SW is a 7.7 inch (196 mm) coaxial speaker with a mounting depth of 113 mm (4.4 in).
Q: How much power can the HMX 7.7 S-LD-SW handle?
A: It is rated at 100W continuous and 200W peak power handling, with a 4 ohm impedance.
Q: Does the HMX 7.7 S-LD-SW have LED lighting?
A: Yes. It has integrated RGB LED lighting, designed to be used with the Hertz HM RGB 1 BK accessory.
