Hertz HMS 10 S4-LD-G 10" 600W 4-Ohm Marine RGB LED Subwoofer - Grey

Hertz HMS 10 S4-LD-G 10" 600W 4-Ohm Marine RGB LED Subwoofer - Grey

The Hertz HMS 10 S4-LD-G isn’t your average marine sub—it’s engineered to deliver hard-hitting bass that rocks your boat and brings your music to life. This 10-inch subwoofer combines powerful audio performance with rugged durability and a sleek sport-style look, finished in grey with built-in RGB lighting. Whether you’re cruising calm waters or throttling full-speed ahead, this sub brings thunder to your boat's sound system.

No Enclosure? No Problem.

Unlike most subs that demand a sealed box to perform properly, the HMS 10 S4-LD-G is engineered for infinite baffle setups. That means you can install it directly into your boat’s structure—no bulky enclosures or complicated carpentry needed. It delivers deep, clean, and controlled bass right out in the open, which is perfect for marine environments where space is at a premium and airflow is unrestricted.

Tuned for Marine Madness

Marine gear has to be tougher than land-based audio. That’s why this sub was purpose-built to thrive in brutal marine conditions. It’s fully IP65 rated, so it can withstand high-pressure water jets from any direction. Every component is tested against UV rays, salt fog, and thermal shock, meeting the strictest ASTM standards. Whether your boat is basking under the sun or battling salty sea spray, this subwoofer is built to handle the harshest conditions and keep delivering powerful bass without missing a beat.

LED Glow That Sets the Mood

Style meets substance with a built-in RGB LED lighting system tucked behind the sport grille. This lighting isn’t just for show—it creates an ambient glow that can completely change the vibe on board. Want a more custom look? The grille can be easily removed and painted to match your boat’s color scheme, giving you total control over aesthetics.

Power Meets Precision

Beneath the surface, the HMS 10 S4-LD-G packs some serious power. It boasts 600 watts peak power and 300 watts RMS, giving it the strength to drive deep bass at higher volumes without distortion. With a 4-ohm impedance, it’s compatible with a wide range of marine amplifiers, making it an easy fit in most boat setups. This power isn’t just loud—it’s clean, focused, and satisfying.

Designed to Move Air, Not Just Sit There

The motor structure is no slouch either. A 50mm (2”) long-throw voice coil sits at the heart of the sub, surrounded by a massive 140mm ferrite magnet that’s all about raw output. This setup allows for a ±19mm mechanical excursion, and a 13.5mm Xmax, meaning the cone can travel farther with precision. Translation? It hits hard, with no muddy lows or flabby punch. Every note is defined, deep, and deliberate.

Smart Construction for Harsh Conditions

Materials matter—especially on the water. The cone is crafted from UV-resistant polypropylene, paired with a co-molded Santoprene surround that’s built to flex, not fail. The progressive aramid fiber spider maintains tight control over the sub’s movement, and silicone-insulated lead wires prevent wear from vibration and salt. It’s all housed in a polymer-injected marine-grade basket, designed to resist corrosion and lock down every component securely.

More Than Just Boom

Let’s talk finesse. The HMS 10 S4-LD-G doesn’t just shake your deck—it frees up your full-range speakers to do their job better. By handling the low-end heavy lifting, it lets your mids and highs shine through with clarity and focus. The result? A system that not only sounds louder but feels more dynamic, balanced, and musical.

Dialed-In Audio Dynamics

Everything about this sub is tuned for real performance. Its resonant frequency (Fs) clocks in at 41Hz, which means it comfortably reaches those deep, floor-rumbling lows. With a sensitivity rating of 88 dB, it’s efficient enough to pump out solid bass without draining your amp. The Qts value of 0.71 keeps the sound tight and responsive—no sluggish low end here, just clean, precise power.

The Hertz HMS 10 S4-LD-G is the kind of subwoofer you install once and enjoy for seasons to come. It’s a blend of brute strength, smart engineering, and serious style—all built for the open water.

FAQs

1. Is the Hertz HMS 10 S4-LD-G waterproof? Yes, it’s IP65 certified, meaning it's protected against water jets and fully ready for marine use.
2. Can I paint the grille to match my boat? Definitely. The sport grille is removable and designed to be easily painted for a custom look.
3. Does it include RGB lighting? Yes, it comes with built-in RGB LEDs that provide vibrant, customizable lighting for your setup. The controller (HM RGB 1 BK) is sold separately.
4. What kind of bass can I expect from this sub? You’ll get deep, powerful, and tight bass with excellent clarity, thanks to its long-excursion design and rugged motor structure.
5. Is this subwoofer suitable for open-air setups? Absolutely. It’s built for infinite baffle use, meaning it performs great without needing a traditional enclosure.