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"Fit perfectly and worked exactly as expected — support was excellent."
Hertz DCX 87.3
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Real installer support before and after purchase
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Full Manufacturer 2 Years Warranty
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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
- 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 87.3
Sale price$99.99
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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