Hertz MP 70.3
Mille Pro Series 3" midrange speakers
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Hertz MP 70.3 PRO | Mille Pro 3" Midrange Speakers
The Hertz MP 70.3 PRO is a high-end 3-inch (70 mm) midrange driver designed to be the heart of a sophisticated 3-way component system. Featuring a Neodymium double magnet inside the voice coil, this speaker is engineered to produce an enthralling and detailed midrange. It is the perfect acoustic bridge between the powerful low-end of Mille Pro woofers and the refined highs of Mille Pro tweeters, creating a seamless and lifelike soundstage.
Product Highlights
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Exceptional Midrange Detail: The double Neodymium magnet structure provides a highly symmetrical magnetic field, ensuring maximum vocal clarity and instrumental precision.
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V-cone® Technology: This proprietary exponential profile optimizes off-axis dispersion, meaning the speakers sound balanced and clear even when they aren't pointed directly at your ears.
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Boundary Free Surround: Allows for a larger cone surface area within the same footprint, providing better efficiency and a wider extension into lower frequencies.
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High Efficiency: With a sensitivity of 88 dB, these drivers are optimized to deliver high-output performance when paired with quality aftermarket amplification.
Key Features
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Pressed-Pulp Cone with Cotton Fibers: Combines the natural, warm sound of paper with the stiffness of cotton fibers to eliminate unwanted resonances and distortion.
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20 mm (0.8") Voice Coil: Maximizes dynamic response and provides excellent thermal management for consistent performance during long listening sessions.
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Compact Mounting Profile: With a mounting depth of only 1.73 inches, these drivers are easier to integrate into custom A-pillars or factory dash locations.
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Reliable Construction: Built with premium materials to ensure the "Hertz Sound Experience" remains consistent throughout the life of your vehicle.
Technical Specifications
| Feature | Specification |
| Speaker Size | 70 mm (3 in.) |
| Component Type | Midrange |
| Power Handling (Peak) | 100 Watts (Hi-Pass filtered @250Hz - 12 dB Oct.) |
| Nominal Impedance | 4-Ohm |
| Frequency Response | 180 Hz – 18,000 Hz |
| Sensitivity | 88 dB SPL |
| Voice Coil Diameter | 20 mm (0.8 in.) |
| Mounting Depth | 44 mm (1.73 in.) |
What’s In The Box?
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(2) Hertz MP 70.3 PRO 3" Midrange Speakers
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(2) Mounting gaskets
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(8) Mounting screws
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(1) Owner’s manual
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(1) Warranty card
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.