Hertz MP 300 D4.3
Mille Pro Series 12" subwoofer with dual 4-ohm voice coils
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Hertz MP 300 D4.3 Mille PRO Series 12" 1200W Peak Power Handling at 4-Ohms, Dual Voice Coil Component Car Subwoofer
Like the Legend ML2000.3 and ML2500.3, the Mille PRO series uses Boundary Free Surround technology, allowing a larger emission surface within the same diameter — resulting in higher sound pressure and improved output.
Its compact 6-spoke aluminum alloy anti-resonant basket, identical to the one used in the flagship ML 2500.3, enhances mechanical damping and prevents unwanted resonances.
The 65 mm, 4-layer voice coil wound on a TIL-P former delivers high linear excursion, and the 4Ω + 4Ω DVC configuration provides excellent wiring flexibility for different amplifier setups.
Key Features
– Paper-pulp cone with mineral injection for superior rigidity
– V-cone® profile for piston-like motion and accurate bass response
– Boundary Free Surround technology for higher sound pressure output
– 6-spoke aluminum alloy anti-resonant basket for improved stability
– High-excursion 65 mm voice coil for powerful, controlled low frequencies
– Dual 4-ohm voice coil design for maximum wiring versatility
– Compact yet high-performance design inspired by Mille Legend technology
What's Inside?
- (1) 12" 4 Ohms Dual voice coil subwoofer
- (10) 1-3/8" Allen Head Screws
- 4mm Allen Head bit
- (10) Speed clips
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.