Hertz DCX 87.3
Dieci Series 3-1/2" 2-way car speakers
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Hertz DCX 87.3 | Dieci Series 3.4" 2-Way Coaxial Speakers
The Hertz DCX 87.3 is a high-performance 3.4-inch (87 mm) coaxial speaker designed for vehicles with small factory dash or pillar locations. Part of the popular Dieci series, these speakers prove that size isn't everything. By combining a neodymium tweeter with a high-density flux ferrite woofer, Hertz has created a compact driver that delivers a wide frequency response and a rich, emotional sound experience without requiring a large mounting footprint.
Product Highlights
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Oversized Magnetic Group: Despite its 3.4" frame, the speaker features a powerful magnet assembly that provides ultimate control over the voice coil for accurate, distortion-free sound.
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Neodymium Tweeter: Equipped with a 15 mm PEI dome tweeter and a neodymium magnet, ensuring brilliant, energetic highs that breathe life into your music.
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Exceptional Efficiency: With a 92 dB sensitivity, these speakers are optimized to perform beautifully even when powered by the relatively low output of a factory head unit.
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Linear Response: Specifically engineered to provide a smooth, balanced sound profile across its entire frequency range, making it a massive upgrade over generic factory drivers.
Key Features
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Water-Repellent Pressed Paper Cone: Offers a natural, warm tonal quality while remaining resistant to the environmental stresses of a car interior.
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PEI Dome Tweeter: Known for its rigidity and lightweight properties, the PEI dome provides extended high-frequency detail and superior off-axis performance.
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Pure Copper Voice Coil: Wound on a Conex former for maximum lightness and efficient heat dissipation, allowing for higher reliability at sustained volumes.
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TPU (Thermoplastic Polyurethane) Surround: Provides a stable, long-throw excursion for the woofer while effectively damping unwanted resonances.
Technical Specifications
| Feature | Specification |
| Speaker Size | 87 mm (3.4 in.) |
| Design | 2-Way Coaxial |
| Power Handling (RMS) | 30 Watts |
| Power Handling (Peak) | 60 Watts |
| Impedance | 4-Ohm |
| Frequency Response | 130 Hz – 21,000 Hz |
| Sensitivity | 92 dB SPL |
| Mounting Depth | 1.3 in (34 mm) |
What’s In The Box?
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(2) Hertz DCX 87.3 3.4" Coaxial Speakers
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(8) Mounting screws
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(8) Speed clips
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Owner’s manual (Multiple languages)
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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.