About the Hertz MLK 700.3
The stuff of LEGEND
The stuff of LEGEND
Is perfect sound possible in the car? Hertz strives to achieve it with their Mille LEGEND Series MLK 700.3 component speaker system. This set of two 3" speakers, two tweeters, and two versatile external crossovers prioritizes premium sound, utilizing the very best technology and materials Hertz has to offer. Pair this system up with Hertz's LEGEND 7" woofers, and you'll experience inspiring 3-way performance.
Premium components
An aluminum alloy speaker basket with built-in venting provides a solid, smart foundation for impressive performance from the 3" midrange. Hertz employs a "Boundary Free" rubber surround with its enhanced pressed pulp and cotton fiber cone to move more air with accuracy. The woofer's V-cone design also improves dispersion so you can hear all the midrange information, while the 1-7/16" Tetolon dome tweeter fills in the high-frequency details. Superior damping is also key to the sound of these speakers — minimized resonance reduces distortion for a truer-to-life sound.
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:
- component system includes 2 midrange drivers, 2 tweeters, and 2 external crossovers
- 3" pressed pulp/cotton fiber midrange cone
- Boundary Free rubber surround
- aluminum alloy basket
- 1-7/16" Tetolon dome tweeter
- compact MLCX 2 TM.3 outboard crossover
- 3-position attenuation switches for tweeter and midrange
- frequency range: 200-28,000 Hz
- handles up to 100 watts RMS (200 watts peak power)
- midrange sensitivity: 90 dB
- tweeter sensitivity: 92 dB
- midrange top-mount depth: 1-11/16"
- grilles included
- warranty: 2 years
- Our 60-day money-back guarantee
- MFR # MLK 700.3
What's in the box:
Hertz MLK 700.3 owner's manual
- Two ML 700.3 Midrange
- Two ML 280.3 Dome tweeters (with attached 10" length of speaker wire)
- Two MLCX 2 TM.3 Crossover networks
- 2 Tweeter flush mount cups (installed)
- 2 Tweeter grilles (installed)
- 2 Midrange grilles
- Eight 1" Allen head screws (3mm)
- Eight 1/2" Allen head screws (2.5mm)
- 8 Large speed clips
- 8 Small speed clips
- Two M3 x 8mm Machine screws (2.5mm Allen head/installed in tweeter housing)
- 2.5mm Allen head bit
- Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese/ 21 Others)
- Templates on box
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More details on the Hertz MLK 700.3

Features & specs
General | ||
---|---|---|
Speaker Size | 3 | |
Design | 2-way | |
Tweeter Design | 35mm Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Tetolon | |
Woofer Composition | --- | |
Woofer Surround | Rubber | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years | |
Specifications | ||
Sensitivity (1W at 1 meter) | 90 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 200 - 28k Hz | |
Minimum RMS Wattage | --- | |
Maximum RMS Wattage | 100 | |
Peak Power Handling (Watts) | 200 | |
Top-mount Depth (Inches) | 1 11/16 | |
Bottom-mount Depth (Inches) | 1 13/16 | |
Cutout Diameter or Length (inches) | 2 15/16 | |
Mounting Height (Inches) | 0.211 |
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.
Tweeter Mounting: The ML 280.3 tweeters are designed to flush mount using the included clamps. They can also be mounted to many factory tweeter brackets using the M3 threaded insert on the back of the tweeter housing. The tweeters are permanently mounted in their housings.
Tweeter Dimensions:
Flush Mount | |
Mounting Height | 0.618" |
Mounting Depth | 0.703" |
Frame Diameter | 2.101" |
Cutout Diameter | 1.9" |
Tweeter Level: Three different positive wire terminals offer tweeter output level options, -2 dB, 0 dB, and +2 dB. Hertz recommends 0 dB when the tweeters are mounted off-axis (relative to the listeners) and -2 dB when the tweeters are mounted on-axis
Crossover Slope: The slope of the high-pass output is 12 dB/octave. The low-pass slope is 6 dB/octave.
Crossover Input: Hertz recommends the signal input to the MLCX 2 TM.3 be crossed over at 250 Hz, 12 dB/octave, high-pass.
Mid Notch: A 3-position switch in each crossover allows you to adjust the midrange output between 400 Hz and 4 kHz (maximum impact at approximately 600Hz). Choose 0 dB, -4 dB, or -6 dB. This provides the ability to linearize the midrange frequency response according to their mounting location.
Wiring: The crossover inputs and outputs are set screw terminals; they will accept bare wire up to 8 gauge.
Crossover Dimensions:
- Width: 7.7"
- Height: 1.6"
- Depth: 4.7"
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