Modern Connectivity
Seamless Apple CarPlay® and Android Auto™ for navigation, music, and calls.
"Fit perfectly and worked exactly as expected — support was excellent."
Hertz DCX 100.3
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Real installer support before and after purchase
Price Match Guarantee
Full Manufacturer 2 Years Warranty
Free 30-Day Returns
Check Compatibility
2 left in stock
Ships within 1-3 days
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Hertz DCX 100.3 | Dieci Series 4" 2-Way Coaxial Speakers
The Hertz DCX 100.3 is a compact 4-inch (100 mm) coaxial speaker engineered to deliver high-fidelity audio in vehicles with very limited mounting space. Part of the Dieci series, these speakers are built with "maniacal care" to provide a linear frequency response and exceptional reliability. Featuring a neodymium magnet and a TPU surround, they offer a significant performance boost over factory speakers while remaining incredibly easy to install.
Product Highlights
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High Efficiency: With a 92 dB sensitivity, these speakers are designed to produce clear, impactful sound even when powered by a low-wattage factory head unit.
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Neodymium Tweeter: The 15mm PEI dome tweeter uses a powerful neodymium magnet to deliver bright, energetic high frequencies with excellent detail.
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Advanced Damping: Equipped with a TPU (Thermoplastic Polyurethane) surround, which ensures high excursion and minimizes unwanted resonances for cleaner audio.
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Moisture Resistant: The water-repellent pressed paper cone provides a natural tonal balance and is built to withstand the humidity common in automotive environments.
Key Features
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Compact 4" Profile: Designed to fit into small factory locations, such as dashboards or rear pillars, where larger speakers cannot go.
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Pure Copper Voice Coil: Wound on a Conex former for maximum lightness and superior thermal dissipation, ensuring long-term performance.
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Integrated Crossover: A built-in crossover network manages the transition between the woofer and tweeter for a seamless, balanced sound.
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High-Density Flux Ferrite Magnet: Provides the necessary motor force for a punchy mid-range and mid-bass response despite the small driver size.
Technical Specifications
| Feature | Specification |
| Speaker Size | 100 mm (4 in.) |
| Design | 2-Way Coaxial |
| Power Handling (RMS) | 30 Watts |
| Power Handling (Peak) | 60 Watts |
| Impedance | 4-Ohm |
| Frequency Response | 70 Hz – 21,000 Hz |
| Sensitivity | 92 dB SPL |
| Mounting Depth | 1.7 in (43 mm) |
What’s In The Box?
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(2) Hertz DCX 100.3 4" Coaxial Speakers
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(8) 3/4" Mounting screws
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(8) Speed clips
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Mounting template (printed on the box)
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Owner’s manual (Multiple languages)
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase
Hertz DCX 100.3
Sale price$129.99
Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Hands-free control reduces distraction and frustrationwhile driving.
Expandable by Design
Add backup cameras, better speakers, amps, or subsanytime.
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
FIND THE RIGHT PRODUCT FOR YOUR EXACT VEHICLE
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
40 Years of Installation Experience
Tens of Thousands of Installs Completed
Authorized Dealer Full Warranties
Why Buying This Here Is Safer Than Anywhere Else
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Verified Vehicle Fit
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Installer Support
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Authorized Products
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Easy Returns
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Physical stores & real installers
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
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