Hertz CPX 165 6.5-Inch Coaxial Car Speaker
If you love music and spend a lot of time in your car, the Hertz CPX 165 is the upgrade your audio system deserves. This 6.5-inch coaxial speaker brings the legendary Hertz sound signature to vehicles where a full two-way component kit simply won't fit — delivering clear highs, a natural midrange, and a surprisingly punchy low end, all from a single, easy-to-install unit.
What is this Product?
The Hertz CPX 165 is a 165mm (6.5-inch) coaxial car speaker from Hertz's CPX series. It handles up to 285W peak power (95W continuous) at 4 Ohm impedance and covers a frequency range of 45Hz to 22kHz. It combines a woofer and tweeter in one unit, making it a direct replacement for factory speakers in most cars without any complex modifications.
Why Choose This Product?
- ✅ Genuine Hertz quality — one of Italy's most respected car audio brands
- ✅ Fits standard 6.5-inch speaker locations — no cutting or custom fabrication needed
- ✅ Tetolon dome tweeter delivers smooth, fatigue-free high frequencies
- ✅ Neodymium tweeter magnet for powerful output in a compact size
- ✅ Radial Venting System keeps the voice coil cool during long listening sessions
- ✅ Mille-inspired basket design with rubber-coated magnet for vibration damping
- ✅ Optional grille available for a clean, finished look
Key Features
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Size: 165mm / 6.5 inches — fits the most common car speaker mounting size
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Peak Power: 285W — handles high-powered head units and amplifiers
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Continuous Power: 95W — rated for sustained, real-world listening
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Impedance: 4 Ohm — compatible with virtually all car head units and amplifiers
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Frequency Response: 45Hz – 22kHz — covers bass, midrange, and treble in one speaker
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Tweeter Diaphragm: 26mm (1 inch) — large enough for detailed, airy highs
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Woofer Voice Coil: 25mm (1 inch) — pure copper for high excursion capability
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Tweeter Voice Coil: 20mm (0.8 inch) — cooled with ferrofluid for reliability
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Woofer Magnet: High-density ferrite — low distortion at high power levels
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Tweeter Magnet: Neodymium — strong magnetic field in a small package
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Cone Material: Pressed paper — FEM-optimized geometry for rigid, lightweight response
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Suspension: Butyl rubber — extended low-frequency response and long-term durability
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Xmech: ±6.9mm (0.27 inch) — generous mechanical excursion for bass output
- Weight: 1.13 kg (2.49 lb) per speaker
Advanced Technologies
Radial Venting System (RVS): Eight precisely placed venting holes at the base of the motor allow air to circulate freely between the woofer and the tweeter support. This keeps the voice coil cooler during extended high-volume use, which directly translates to better reliability and a more consistent sound — even when you're pushing the speaker hard on a long drive.
Tetolon Dome Tweeter: The tweeter uses a soft Tetolon fiber dome — a material chosen for its ability to reproduce high frequencies smoothly without the harshness you sometimes get from metal dome tweeters. The 20mm voice coil is cooled with ferrofluid, which helps it handle heat and maintain performance over time. The result is high-frequency sound that's detailed and extended without ever becoming tiring to listen to.
FEM-Optimized Pressed-Paper Cone: The woofer cone is made from pressed paper with a geometry refined using Finite Element Method (FEM) analysis. This means the cone is stiff where it needs to be and light where it doesn't — so it moves accurately and quickly, producing a clean, color-free midrange and a tight, punchy bass.
Mille-Inspired Basket Design: The 3-spoke basket is borrowed from Hertz's flagship Mille series. It's acoustically transparent, compact, and paired with a rubber-coated magnet cover that absorbs unwanted vibrations from the car body — keeping the sound clean and free from rattles.
Benefits
- 🎵 Noticeably better sound than factory speakers — more detail, more depth, more punch
- 🔧 Simple drop-in installation in most 6.5-inch speaker locations
- ❄️ Runs cooler under load thanks to the Radial Venting System
- 🎶 Smooth, non-fatiguing highs from the Tetolon dome tweeter
- 💪 Handles up to 285W peak — ready for an amplifier upgrade later
- 🚗 Compact design fits tight door cavities without modification
- 🛡️ Rubber-coated magnet cover reduces vibration and protects the motor
Who Should Buy This Product?
- Car owners looking to replace dull factory speakers with a genuine audio upgrade
- Music lovers who want better sound without the complexity of a full component kit
- Anyone with a standard 6.5-inch speaker location in their car
- Enthusiasts who want Hertz sound quality at a more accessible price point than the Mille or Uno series
- Drivers who listen to a wide range of music — the CPX 165 handles everything from vocals to bass-heavy tracks
Technical Specifications
| Specification |
Value |
| Type |
Coaxial |
| Size |
165mm / 6.5 inches |
| Peak Power Handling |
285W |
| Continuous Power Handling |
95W |
| Impedance |
4 Ohm |
| Frequency Response |
45Hz – 22,000Hz |
| Tweeter Diaphragm |
26mm (1 inch) — Tetolon dome |
| Woofer Voice Coil Diameter |
25mm (1 inch) |
| Tweeter Voice Coil Diameter |
20mm (0.8 inch) |
| Woofer Magnet |
High-density ferrite — 85 x 32 x 17mm |
| Tweeter Magnet |
Neodymium — 19 x 3mm |
| Cone Material |
Pressed paper (FEM-optimized) |
| Dome Material |
Tetolon fiber |
| Suspension |
Butyl rubber |
| Mechanical Excursion (Xmech) |
±6.9mm (0.27 inch) |
| Weight (per speaker) |
1.13 kg (2.49 lb) |
| Grille |
Optional (ABS frame + metallic mesh) |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products — every product we sell is sourced directly from authorised distributors
- ✅ Expert Guidance — our team understands car audio and can help you choose the right fit for your vehicle
- ✅ Pan-India Delivery — we ship to every corner of India, quickly and reliably
- ✅ Secure Packaging — your speakers arrive safely, protected against transit damage
- ✅ After-Sales Support — we're here after your purchase if you have questions or need help
- ✅ Trusted by Enthusiasts — thousands of car audio fans across India trust Dolphin Accessories for their upgrades
Frequently Asked Questions
Q: Will the Hertz CPX 165 fit my car without any modifications?
A: In most cases, yes. The CPX 165 is designed for standard 6.5-inch (165mm) speaker locations, which are found in the doors or rear deck of the majority of cars sold in India. We recommend checking your car's speaker size before ordering.
Q: Can I connect the CPX 165 directly to my factory head unit?
A: Yes. At 4 Ohm impedance, the CPX 165 is fully compatible with factory head units. You'll hear a clear improvement over stock speakers even without an amplifier.
Q: What is the difference between a coaxial speaker and a component speaker?
A: A coaxial speaker combines the woofer and tweeter in one unit, making installation simple. A component system separates them for more precise sound staging. The CPX 165 is ideal if you want a significant upgrade without complex installation.
Q: Do I need an amplifier to run the Hertz CPX 165?
A: No, you don't need one. The CPX 165 works well with a head unit alone. However, if you do add an amplifier later, these speakers can handle up to 285W peak, so they'll grow with your system.
Q: What does the Radial Venting System do?
A: It's a cooling system built into the speaker motor. Eight venting holes allow air to circulate around the voice coil, preventing heat build-up during long listening sessions at high volume. This keeps the speaker performing consistently and extends its life.
Q: What is a Tetolon dome tweeter?
A: Tetolon is a soft fiber material used for the tweeter's dome. It produces smooth, detailed high frequencies without the harshness that some metal dome tweeters can have. It's a good choice if you listen to vocals, acoustic music, or anything where clarity matters.
Q: Is the grille included with the CPX 165?
A: The grille is listed as optional and is not included in the standard package. You can purchase it separately if you want a finished, protected look for your speakers.
Q: What is the sensitivity rating of the CPX 165?
A: The sensitivity specification is not listed in the official product data for this model. Please contact us and we'll confirm the exact figure for you.
Q: How many speakers come in the box?
A: The weight listed is per speaker (1.13 kg each), and Hertz coaxial speakers are typically sold as a pair. Please confirm with us at the time of order if you need clarification.
Q: Is the Hertz CPX 165 suitable for bass-heavy music like EDM or hip-hop?
A: Yes, it handles bass reasonably well for a coaxial speaker, with a low-frequency response down to 45Hz and a butyl rubber suspension for extended excursion. For very heavy bass, pairing it with a subwoofer will give you the best results.
Q: How do I install the Hertz CPX 165?
A: Installation follows the same process as any standard 6.5-inch coaxial speaker — remove the door panel, disconnect the factory speaker, connect the CPX 165 using the existing wiring harness (an adapter may be needed for some cars), and mount it in place. A professional installer can do this in under an hour.
Q: Is this product covered by a warranty?
A: Hertz products sold through authorised dealers like Dolphin Accessories come with manufacturer warranty coverage. Please contact us for specific warranty terms applicable to your purchase.
