Hertz HMR 15 Marine Head Unit with Bluetooth and Compact Square Display

Meet the Hertz HMR 15, a purpose-built marine head unit designed to deliver clean, dependable sound on open water without clutter. Its compact, square profile aligns with premium navigation instruments, while a large, readable 2.8” DOT matrix display keeps your music and information accessible even in bright sunlight. The generous marine-grade pushbutton panel—balanced across the top and bottom—offers intuitive control, so you can stay focused on the voyage ahead.

Designed to endure the sea

HMR 15 is built for life at sea. It carries IP66 protection for water and dust resistance, plus ASTM-D4329 UV resistance and ASTM-B117 salt fog operability. In other words, you get a rugged companion that remains reliable season after season, from calm days to spray-filled crossings.

Connectivity that keeps the voyage flowing

• Bluetooth 5.0 for stable, high-quality streaming from your phone or tablet
• USB 2.0 for fast, direct device connections
• AUX-In for legacy players or simple auxiliary sources
• AM/FM radio for regional listening options

Sound that respects marine acoustics

The HMR 15 doesn’t just play music—it optimizes it for a salt-air environment. It includes a tailored 4 x 50 W peak power (4 Ω) output for clear, room-filling sound, with two front/rear line outputs and a dedicated subwoofer output with selectable low-pass filters (80 Hz, 120 Hz, 160 Hz). The 2.8” display remains legible while the system delivers a focused, punchy marine soundstage.

Smart tuning for a clean, balanced ride

• Three EQ presets crafted by Hertz audio engineers to suit varying open-water conditions
• Bass-Treble equalization to dial in your preferred tonal balance

Compact control with professional-grade build

The HMR 15 combines a minimalist, modern chassis with practical controls. Its front panel is IP66-rated, ensuring protection against water spray. Mounting is versatile and straightforward—panel mount with four screws or an optional U-bracket—while the slim depth helps you preserve cockpit space.

Why the HMR 15 is the smart choice for serious boaters

• Durable, seaworthy construction that withstands sun, salt, and splashes without compromising performance
• Integrated features that cover modern cruising needs—from Bluetooth streaming to AM/FM radio and device connectivity
• A compact, aesthetically aligned design that matches premium navigation tools while delivering full-spectrum marine audio
• Concrete, real-world benefits: easier cockpit setup, clearer calls on deck, and music that stays balanced across your boat’s hull

Technical snapshot

• Display: 2.8” DOT Matrix
• Peak Power: 4 x 50 W @ 4 Ω
• Front Panel: IP66
• Line Outs: 2x L+R (Front & Rear)
• Subwoofer Out: 1x L+R (LPF: 80/120/160 Hz)
• Aux Input: 1x L+R (RCA)
• Folder: Square, minimalist design to complement prestigious navigation instruments
• Connectivity: USB 2.0, AUX-In, AM/FM Radio, Bluetooth 5.0
• Mounting: Panel mount (4 screws) or U-Bracket; Dimensions: W 126 mm x H 114 mm x D 96.5 mm; Mounting Hole Ø 89.5 mm; Depth 72 mm

For boaters who demand reliable, high-fidelity audio in a compact package, the Hertz HMR 15 bridges performance with durability. It’s engineered for the marine environment, designed to integrate seamlessly with modern cockpit layouts, and tuned to bring your favorite tunes and navigation cues to life—even when the waves are up. If you’re cataloging marine audio solutions, this head unit stands out as a focused, purpose-built choice for serious open-water listening in the Electronics > Marine Electronics > Marine Audio & Video Receivers category.