Hertz CX 165 6.5 Inch 2-Way Coaxial Car Speaker 210W Peak
If you've been living with your car's factory speakers and wondering why music never quite sounds the way it should, the Hertz CX 165 is the upgrade you've been looking for. These 6.5-inch coaxial speakers from the Cento series are built for people who genuinely care about how their music sounds on the road — not just louder, but cleaner, more detailed, and more alive.
What is this Product?
The Hertz CX 165 is a 2-way coaxial loudspeaker designed to replace standard 6.5-inch OEM car speakers. It combines a woofer and tweeter into a single unit, making installation straightforward while delivering a significant step up in audio quality. Part of Hertz's Cento series, the CX 165 is engineered for real-world car audio environments — where placement isn't always ideal and the speaker still needs to perform.
Why Choose This Product?
- ✅ Genuine Hertz Cento series speaker — not a budget imitation
- ✅ 210W peak power handling for dynamic, distortion-free sound at volume
- ✅ Tetolon® dome tweeter for smooth, extended high frequencies
- ✅ RHFC rotary tweeter that you can angle toward the listener
- ✅ SPP-M cone balances lightness with excellent damping
- ✅ Drop-in fit for most standard 6.5-inch OEM speaker locations
- ✅ Backed by Dolphin Accessories with pan-India delivery and after-sales support
Key Features
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6.5-inch (165 mm) woofer — fits standard OEM door and dash speaker cutouts without modification in most vehicles
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210W peak / 70W continuous power handling — handles both everyday listening and high-volume sessions without breaking up
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24 mm Tetolon® dome tweeter — produces smooth, natural highs that don't fatigue your ears on long drives
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13 mm voice coil with ferrofluid cooling — keeps the tweeter running cool and stable even at higher power levels
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25 mm aluminum former woofer coil — allows greater excursion for deeper, more controlled bass
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4 Ohm impedance — compatible with most factory head units and aftermarket amplifiers
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Frequency response: 55 Hz – 22 kHz — covers the full range from warm bass to crisp, airy highs
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High-density ferrite woofer magnet — delivers strong, consistent magnetic flux for reduced distortion
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Neodymium tweeter magnet — compact and powerful, keeping the tweeter assembly light and responsive
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Three-spoke basket with rubber magnet cover — minimises unwanted resonance and vibration from the speaker frame
Advanced Technologies
Tetolon® Dome Tweeter: Hertz developed the Tetolon® fiber material specifically for their tweeters. Unlike standard plastic or silk domes, Tetolon® offers a combination of stiffness and internal damping that results in a more natural, musical treble. You get extended high-frequency detail without the harshness that cheaper materials often introduce.
RHFC — Rotary High Frequency Contour: One of the most practical features on the CX 165 is the RHFC system, which lets you physically rotate and angle the tweeter toward the listening position. In a car, speakers are rarely aimed directly at your ears, so this adjustment makes a real difference to how balanced and focused the soundstage feels.
FEM-Optimised Tweeter Faceplate: Hertz used Finite Element Modeling (FEM) simulations to shape the tweeter faceplate. This means the geometry isn't guesswork — it's been mathematically optimised to maintain a linear frequency response even when the speaker is installed off-axis, which is almost always the case in a car.
SPP-M Cone (Semi Pressed Paper-Mica): The woofer cone is made from semi-pressed paper enhanced with Mica powder. This combination gives the cone the lightness needed for quick, accurate movement while adding the rigidity and damping required to prevent unwanted flexing at higher volumes. The result is tighter, more accurate mid-bass reproduction.
Benefits
- 🎵 Noticeably cleaner, more detailed sound compared to factory speakers
- 🔊 Handles high power without distortion — great for amplified systems
- 🎯 Adjustable tweeter angle means better soundstage in any car
- 🛠️ Straightforward installation in standard 6.5-inch OEM locations
- 🚗 Designed for real car environments, not just lab conditions
- 💡 Works well with both head unit power and external amplifiers
- 🏆 Backed by Hertz's engineering heritage and Dolphin Accessories' support
Who Should Buy This Product?
- Car owners who want a meaningful audio upgrade without a full system overhaul
- Music lovers who find factory speakers flat, thin, or lacking detail
- Anyone running an aftermarket head unit or amplifier and needs speakers that can keep up
- Enthusiasts who want a trusted European audio brand at a sensible price point
- Drivers who spend long hours in the car and want fatigue-free, enjoyable sound
Technical Specifications
| Specification |
Value |
| Component Type |
Coaxial (2-Way) |
| Size |
165 mm (6.5 in.) |
| Power Handling – Continuous |
70 W |
| Power Handling – Peak |
210 W |
| Impedance |
4 Ohm |
| Frequency Response |
55 Hz – 22,000 Hz |
| Woofer Voice Coil Diameter |
25 mm (1 in.) |
| Tweeter Voice Coil Diameter |
13 mm (0.5 in.) |
| Tweeter Dome Material |
Tetolon® fiber |
| Cone Material |
Semi Pressed Paper + Mica (SPP-M) |
| Woofer Magnet Type |
High-density flux ferrite |
| Tweeter Magnet Type |
Neodymium |
| Woofer Magnet Size (D × d × h) |
85 × 32 × 15 mm (3.35 × 1.26 × 0.59 in.) |
| Tweeter Magnet Size (D × h) |
13 × 2 mm (0.51 × 0.08 in.) |
| Xmech |
4.9 mm (0.19 in.) |
| Weight (per speaker) |
0.95 kg (2.09 lb.) |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products — every item 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 all major cities and towns across India
- ✅ Secure Packaging — your speakers arrive safely, protected for transit
- ✅ After-Sales Support — we're here if you have questions after your purchase
- ✅ Trusted by Enthusiasts — thousands of car audio upgrades delivered across India
Frequently Asked Questions
Q: Will the Hertz CX 165 fit my car's factory speaker location?
A: The CX 165 is designed for standard 6.5-inch (165 mm) speaker cutouts, which are found in the doors or dash of most popular cars. It's worth checking your specific vehicle's speaker size before ordering.
Q: Do I need an amplifier to run these speakers?
A: No. The CX 165 works with most factory and aftermarket head units. However, pairing them with an external amplifier will let you take full advantage of their 210W peak power handling.
Q: What does the RHFC tweeter system do?
A: RHFC stands for Rotary High Frequency Contour. It lets you rotate the tweeter to point it toward the listening position, which improves the soundstage and makes the audio feel more centred and balanced inside the car.
Q: What is a Tetolon® dome tweeter?
A: Tetolon® is a proprietary fiber material developed by Hertz for their tweeters. It produces smoother, more natural high frequencies compared to standard plastic domes, without the harshness that some materials introduce at higher volumes.
Q: What is the impedance of the CX 165?
A: The CX 165 has a 4 Ohm impedance, which is compatible with the vast majority of car head units and amplifiers available today.
Q: What is the difference between continuous and peak power?
A: Continuous power (70W) is what the speaker can handle safely over a sustained period. Peak power (210W) is the maximum it can handle in short bursts. For everyday use, matching the continuous rating to your amplifier's output is the right approach.
Q: What does SPP-M cone mean?
A: SPP-M stands for Semi Pressed Paper-Mica. The cone is made from paper reinforced with Mica powder, which makes it light enough for accurate movement but rigid enough to resist flexing at higher volumes.
Q: Is this a coaxial or component speaker?
A: The CX 165 is a coaxial speaker, meaning the tweeter is mounted at the centre of the woofer in a single unit. This makes installation simpler than a component system while still delivering excellent sound quality.
Q: What is the frequency response of the Hertz CX 165?
A: The CX 165 covers a frequency range of 55 Hz to 22,000 Hz, which spans from warm mid-bass through to the upper limits of human hearing.
Q: Are these speakers suitable for use with a subwoofer?
A: Yes. The CX 165 handles mid and high frequencies well, and pairing them with a subwoofer for the low end is a popular and effective setup for a full-range car audio system.
Q: Do the Hertz CX 165 speakers come with a grille?
A: An elegant ABS grille with a metallic finish and protective metal mesh is available as an optional accessory for the CX 165.
Q: How do I buy the Hertz CX 165 from Dolphin Accessories?
A: Simply add the CX 165 to your cart on our website and complete checkout. We offer pan-India delivery with secure packaging, and our team is available if you need help before or after your purchase.
