Description
Hertz HMX 7.7 S-LD-SW – Premium 7.7" LED Marine Coaxial Speakers (Pair)
The Hertz HMX 7.7 S-LD-SW marine coaxial speakers deliver premium sound and unmatched durability for open-water listening. Featuring a sport-style, paintable grille with integrated LED lighting, these speakers provide high-quality audio with a modern, customizable look. Engineered with Hertz Pure Marine Certified construction, they are ready to perform season after season in the harshest marine environments.
Marine-Grade Construction
- IP65 Certified – Resistant to water and dust ingress.
- UV Resistance – ASTM-D4329 compliant for long-term exposure to sunlight.
- Salt Fog Resistance – ASTM-B117 compliant for corrosion protection in marine conditions.
- Gold-Plated Terminals – Corrosion-resistant for optimal signal transfer.
Audio Performance
- Component Type: Hi-End LED Coaxial
- Woofer: 7.7" (196 mm) polypropylene cone with UV inhibitors and co-molded Santoprene surround
- Tweeter: 1.4" (36 mm) neodymium magnet with PEI dome, faceplate, and acoustic lens for best off-axis dispersion
- Woofer Voice Coil: 1.26" (32 mm)
- Tweeter Voice Coil: 0.8" (20 mm)
- Woofer Magnet: High-density flux ferrite – 3.54" x 1.57" x 0.79" (90 x 40 x 20 mm)
- Tweeter Magnet: Neodymium – 0.78" x 0.12" (19.7 x 3 mm)
- Frequency Response: 45 Hz – 25 kHz
- Sensitivity: 91 dB SPL
- Xmech: ±0.33" (±8.5 mm)
- Xmax: 6 mm
- Re: 3.3 Ω
- Fs: 60 Hz
- Le: 0.56 mH
- Vas: 12.50 liters
- Mms: 22 g
- Cms: 0.32 mm/N
- BL: 6 T*m
- Qts: 0.72
- Qes: 0.76
- Qms: 11.8
Power Handling
- Continuous Power: 100 W RMS
- Peak Power: 200 W
- Nominal Impedance: 4 Ω
Design & Features
- Sport-style, sound-transparent grille for efficient high-frequency transfer
- Paintable grille for custom aesthetics
- Built-in LED lighting for visual enhancement
- Aramid fiber spider with silicone-insulated lead wires
- Sealed built-in crossover with resettable solid-state tweeter protection
- Optimized for infinite baffle applications
Physical Specifications
- Mounting Depth: 4.4" (113 mm)
- Overall Dimensions (W x H x D): 17.87" x 8.98" x 5.79" (454 x 228 x 147 mm)
- Weight (Each): 11.70 lbs (5.31 kg)
Sold as a Pair.
Used Frequently Asked Questions
- What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
- What is the warranty? All of our used items come with a 90-day warranty.
- What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
- Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
- Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
- Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
- Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
- Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.