Hertz DCX 170.3
Dieci Series 6-3/4" 2-way car speakers
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Hertz DCX 170.3 | Dieci Series 6.7" 2-Way Coaxial Speakers
The Hertz DCX 170.3 is a high-performance "flat" coaxial speaker specifically designed for vehicles with shallow mounting depths. With a maximum depth of only 51 mm (2.0 in.), these speakers are the perfect solution for modern door panels and restricted spaces where standard speakers won't fit. Despite their slim profile, they deliver the signature "Hertz Sound" through advanced materials and painstaking Italian engineering.
Product Highlights
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Ultra-Shallow Design: Optimized for seamless installation in reduced spaces without sacrificing acoustic reproduction quality.
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Neodymium Tweeter: Features a powerful Neodymium magnet and PEI dome for brilliant, energetic high-frequency response.
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TPU Surround: The Thermoplastic Polyurethane surround ensures high excursion and resonance damping, even at high volume levels.
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Exceptional Efficiency: With a 93 dB sensitivity, these speakers provide high output even when powered by a standard factory head unit.
Key Features
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Water-Repellent Pressed Paper Cone: Provides a natural sound and resists moisture, making it ideal for the automotive door environment.
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Copper Voice Coil: Wound on a Conex former for superior lightness and efficient thermal dissipation.
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Integrated Crossover: Built-in crossover ensures a smooth transition between the woofer and tweeter for a balanced audio profile.
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High-Density Flux Ferrite Magnet: Provides the magnetic force necessary for punchy mid-bass despite the shallow basket design.
Technical Specifications
| Feature | Specification |
| Speaker Size | 170 mm (6.7 in.) |
| Design | 2-Way Coaxial |
| Power Handling (RMS) | 50 Watts |
| Power Handling (Peak) | 100 Watts |
| Impedance | 4-Ohm |
| Frequency Response | 60 Hz – 21,000 Hz |
| Sensitivity | 93 dB SPL |
| Mounting Depth | 2.0 in. (51 mm) |
What’s In The Box?
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(2) Hertz DCX 170.3 6.7" Coaxial Speakers
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(8) Mounting screws
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(8) Speed clips
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Owner’s manual
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Warranty documentation
Hertz DSK170.3 Dieci Series 6.5" 80W RMS (160W Peak Power Handling) 4 Ohms, 2-Way Car Component System
High-Performance Car Audio System with Premium Materials
Experience top-tier audio performance with Dieci car audio systems, designed to deliver exceptional sound quality with simplicity and precision. Featuring woofers with the exclusive V-cone® profile, these speakers provide outstanding off-axis response and detailed mid-to-high range clarity. The TPU (Thermoplastic Polyurethane) surround ensures linearity and reduces unwanted resonance, even during high-excursion playback, while the neodymium motor assembly and PEI membrane extend the high-frequency response for a richer, more immersive audio experience.
Premium Components for Maximum Control and Power Handling
Engineered to fully exploit the potential of Hertz HCP and HDP amplifiers as well as all 2 Ω stable electronics, these speakers feature a 95 mm ferrite magnet allowing a ±4.5 mm voice coil linear excursion for precise control. The Boundary Free Surround moves more air for deeper bass, while the V-cone® profile improves off-axis dispersion for realistic in-car listening. The aluminium alloy basket neutralizes unwanted vibrations, ensuring clean, distortion-free sound across all frequencies. Passive filters are conveniently integrated into the supplied connection cables, and a full set of accessories enhances install-friendliness and reduces installation time.
Physical Specifications
– A: 165 mm (6.5 in.)
– B: 144 mm (5.7 in.)
– C: 72 mm (2.8 in.)
– D: 64 mm (2.5 in.)
Key Features
– Exclusive V-cone® woofer profile for improved off-axis response
– TPU surround for linearity and reduced resonance
– Neodymium motor assembly and PEI membrane for extended high frequencies
– 95 mm ferrite magnet for precise voice coil excursion
– Boundary Free Surround for increased air movement and deeper bass
– Aluminium alloy basket to neutralize vibrations
– Passive filters integrated into connection cables
– Optimized for Hertz HCP and HDP amplifiers and 2 Ω stable systems
– Includes a full accessory set for fast, easy installation
What's Inside?
- (2) DV 170.3 Woofers
- (2) DT 24.3 Tweeters (with attached 6" length of speaker wire)
- (2) DX 300 Crossover networks
- (2) Tweeter flush mount trim rings
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.