About the Hertz ML 1800.3
LEGENDary woofers
LEGENDary woofers
Is perfect sound possible in the car? Hertz strives to achieve it with their Mille LEGEND Series component speakers. These 7" woofers prioritize premium sound, utilizing the very best technology and materials Hertz has to offer. Do your music justice by incorporating these impressive speakers into your custom system.
Premium Hertz technology
An aluminum alloy speaker basket with built-in venting provides a solid, smart foundation for impressive performance from this 7" speaker. Hertz employs a "Boundary Free" rubber surround with its enhanced pressed pulp and cotton fiber woofer to move more air with accuracy. The woofer's V-cone design improves dispersion and helps provide lows you can feel. Superior damping is also key to the sound of these speakers — minimized resonance reduces distortion for a truer-to-life sound driven by up to 200 watts RMS.
The Hertz philosophy
Hertz believes that a good speaker should reveal the emotional power of the music you love. That's a high bar, but with their commitment to using premium components and boundary-pushing design, they're more than up to challenge. Comprised of music lovers, Hertz is committed to optimizing your car's sound system for total audio enjoyment.
Product highlights:
- 7" woofers (pair)
- pressed pulp/cotton fiber cone
- handles up to 200 watts RMS (400 watts peak)
- frequency response: 38-6,000 Hz
- impedance: 4 ohms
- sensitivity: 93 dB
- grille not included
- top-mount depth: 3"
- warranty: 2 years
- Our 60-day money-back guarantee
- MFR # ML 1800.3
What's in the box:
Hertz ML 1800.3 owner's manual
- Two ML 1800.3 Woofers
- 2 Grilles
- Eight 1" Allen head screws (3mm)
- 8 Speed clips
- 3mm Allen head bit
- Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese/ 21 Others)
- Template on box
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More details on the Hertz ML 1800.3

Features & specs
Size | 7 -inch | |
Impedance | 4 ohms | |
Cone Material | Pressed Paper/Cotton Fiber | |
Surround Material | Rubber | |
Ideal Sealed Box Volume (cubic feet) | N/A | |
Ideal Ported Box Volume (cubic feet) | N/A | |
Port diameter (inches) | N/A | |
Port length (inches) | N/A | |
Free-Air | Yes | |
Dual Voice Coil | No | |
Sensitivity |
93 dB at 1 watt | |
Frequency Response | 38 - 6000 Hz | |
Max RMS Power Handling | 200 | |
Peak Power Handling (Watts) | 400 | |
Top Mount Depth (inches) | 3 1/16 | |
Bottom Mount Depth (inches) | 3 1/4 | |
Cutout Diameter or Length (inches) | 6 1/4 | |
Vas (liters) | 12.2 | |
Fs (Hz) | 60 | |
Qts | 0.5 | |
Xmax (millimeters) | 4 | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years |
Product Research
Features
Boundary Free Surround: This technology provides more cone surface area than other speakers of the same size, enabling it to move more air. The surrounds are made of butyl rubber, ensuring thermal and mechanical linearity.
Klippel Verified: The Klippel distortion analyzer, a device that uses a laser and computer software to do large-scale analysis of drivers in motion, helps Hertz optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.
Crossover: No crossover is included with the ML 1800.3.
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