Hertz DCX 165.3 2-Way Coaxial 6.5" Peak 120W Car Speaker

The 6.5-inch speaker is the go-to upgrade for most car audio enthusiasts — and for good reason. It's the size that delivers the best balance of bass extension, midrange clarity, and physical fit across the widest range of vehicles. The Hertz DCX 165.3 takes that advantage and adds genuine Hertz engineering: a neodymium tweeter, a PEI dome, a built-in crossover, and a TPU surround. If you're looking for one speaker upgrade that makes the biggest difference to your car's sound, this is it.

What is the Hertz DCX 165.3?

The Hertz DCX 165.3 is a 6.5-inch (165mm) 2-way coaxial car speaker from Hertz's Dieci series. It combines a woofer with a neodymium-backed PEI dome tweeter and a built-in crossover, all in a single unit designed for standard 165mm speaker positions. With 120W peak power handling, 60W RMS, and 4 Ohm impedance, it works with factory head units and aftermarket amplifiers. The 72mm mounting depth makes it compatible with most door cavities, and the 25mm voice coil handles heat well during extended listening sessions.

Why Choose the Hertz DCX 165.3?

• ✅ 6.5-inch size — the most popular upgrade size for door speakers in cars, SUVs, and hatchbacks
• ✅ 120W peak / 60W RMS — handles serious volume without distortion
• ✅ Built-in crossover — no external crossover needed, cleaner installation and more accurate frequency splitting
• ✅ Neodymium tweeter magnet — stronger magnetic field in a smaller package than ferrite
• ✅ Exclusive PEI dome tweeter — smooth, fatigue-free high frequencies
• ✅ TPU surround — durable, heat-resistant, maintains consistent bass response over time
• ✅ Water-repellent paper cone — handles moisture and humidity without degrading
• ✅ 72mm mounting depth — fits most standard door cavities without modification
• ✅ 4 Ohm impedance — compatible with factory and aftermarket head units
• ✅ Sold as a pair — both speakers included in the box

Key Features

• Size: 6.5 inch (165mm) — fits standard 165mm speaker cutouts in front and rear doors across most vehicles
• Peak Power: 120W — handles high-volume listening without distortion
• Continuous (RMS) Power: 60W — the real-world sustained output rating
• Impedance: 4 Ohm — compatible with virtually all head units and amplifiers
• Frequency Response: 60Hz – 21kHz — reaches into the upper bass range; pair with a subwoofer for full-range sound
• Mounting Depth: 72mm (2.8 in.) — fits most standard door cavities; verify your door depth before installing
• Voice Coil Diameter: 25mm (1.0 in.) — handles heat well during extended listening sessions
• Built-in Crossover — handles frequency splitting internally; no external crossover components required
• Woofer Magnet: 80 x 40 x 15mm — high-density ferrite for controlled, accurate bass
• Tweeter Magnet: Neodymium — rare-earth magnet for a stronger field in a compact tweeter
• Cone Material: Water-repellent pressed paper — resists moisture without sacrificing natural sound character
• Dome Material: PEI — Hertz's exclusive polyetherimide dome for smooth, accurate highs
• Surround Material: TPU (Thermoplastic Polyurethane) — long-lasting, heat-resistant, consistent bass response
• Weight per speaker: 0.77 kg (1.69 lb.)

Advanced Technologies

Built-in Crossover: The DCX 165.3 includes a properly designed built-in crossover that handles frequency division between the woofer and tweeter internally. This means the tweeter only receives the high-frequency content it's designed for, and the woofer handles the rest — reducing distortion and improving overall clarity without any additional components or wiring. For most installations, this makes the DCX 165.3 a true plug-and-play upgrade that sounds better than most separately crossed-over budget systems.

Neodymium Tweeter Magnet: The DCX 165.3's tweeter uses a neodymium (rare-earth) magnet rather than the ferrite magnets found in most budget coaxials. Neodymium delivers a significantly stronger magnetic field from a much smaller magnet, allowing the tweeter to perform with real authority while keeping the overall speaker profile shallow enough for tight door installations. This is particularly important in a 6.5-inch speaker where door cavity depth can be a limiting factor.

PEI Dome Tweeter: Hertz's polyetherimide (PEI) dome is a signature feature across the Dieci series. PEI reproduces high frequencies with a smooth, natural character — no harshness, no listening fatigue. In a 6.5-inch coaxial that's often used as the primary speaker in a system, the quality of the tweeter has an outsized impact on how the whole system sounds. The PEI dome ensures that impact is a positive one.

TPU (Thermoplastic Polyurethane) Surround: The TPU surround is one of the most durable materials used in car speaker construction. Unlike foam surrounds that degrade in heat and humidity, TPU maintains its elasticity across the temperature extremes common in Indian conditions — from scorching summer afternoons to monsoon humidity. The result is bass that stays tight and consistent over years of use, even in the most demanding climates.

Water-Repellent Paper Cone: The woofer cone is treated with a water-repellent coating that protects it from moisture, condensation, and humidity. In a door-mounted speaker, this matters more than most people realise — door panels are not fully sealed, and moisture ingress is a real cause of speaker degradation over time. The water-repellent treatment extends the speaker's lifespan and keeps the sound consistent regardless of the weather outside.

Benefits

• 🎵 Immediately better sound than factory 6.5-inch speakers — more bass, more clarity, more presence
• 🔊 Built-in crossover means cleaner sound right out of the box — no extra components needed
• 🌡️ Built for Indian climate — TPU surround and water-repellent cone handle heat and humidity
• ⚡ Works without an amplifier — plug straight into your factory head unit
• 🔧 72mm mounting depth — fits most door cavities without cutting or modification
• 🎯 Neodymium tweeter delivers crisp, detailed highs even at low volume
• 📦 Sold as a pair — front or rear door positions covered in one purchase

Who Should Buy the Hertz DCX 165.3?

• Car owners with 6.5-inch (165mm) door speaker positions looking for a genuine, noticeable upgrade
• Anyone replacing thin, lifeless factory door speakers in sedans, hatchbacks, SUVs, or MPVs
• Drivers who want better sound without adding an external crossover or amplifier
• Those building a system where the DCX 165.3 handles front or rear door positions
• Enthusiasts who want a trusted European audio brand in the most popular door speaker size
• Anyone running a factory head unit who wants more bass extension and clarity from their audio
• Owners of popular Indian vehicles — Maruti, Hyundai, Tata, Mahindra, Honda — with standard 6.5-inch door positions

Technical Specifications

Why Choose Dolphin Accessories?

• ✅ 100% Genuine Products — every product is sourced directly from authorised distributors
• ✅ Expert Guidance — our team understands car audio and can help you find the right fit for your vehicle
• ✅ Pan-India Delivery — we ship to all major cities and towns across India
• ✅ Secure Packaging — speakers are packed carefully to arrive in perfect condition
• ✅ After-Sales Support — we're here to help after your purchase, not just before it
• ✅ Trusted by Enthusiasts — thousands of car audio upgrades delivered across India

Frequently Asked Questions

Q: What size is the Hertz DCX 165.3?
A: The DCX 165.3 is a 6.5-inch (165mm) speaker. It fits standard 165mm speaker cutouts commonly found in front and rear door positions in most cars, SUVs, hatchbacks, and sedans sold in India.

Q: What is the mounting depth of the Hertz DCX 165.3?
A: The mounting depth is 72mm (2.8 inches). Before installing, measure your door cavity depth to confirm it can accommodate the speaker. Most standard car doors in India have sufficient depth for this speaker.

Q: Does the Hertz DCX 165.3 have a built-in crossover?
A: Yes. The DCX 165.3 includes a built-in crossover that handles frequency splitting between the woofer and tweeter internally. You don't need to buy or install a separate crossover unit.

Q: Do I need an amplifier to run the Hertz DCX 165.3?
A: No. At 4 Ohm impedance, these speakers work directly with factory and aftermarket head units. An amplifier will improve performance further, but it's not required to enjoy a significant upgrade over factory speakers.

Q: What is the RMS power of the DCX 165.3?
A: The continuous (RMS) power handling is 60W per speaker. The 120W figure is the peak rating. For best results, match your amplifier's RMS output to the speaker's RMS rating.

Q: Is the Hertz DCX 165.3 sold as a pair or a single speaker?
A: It is sold as a pair — you receive two speakers in the box, enough for one set of front or rear door positions.

Q: What is the frequency response of the DCX 165.3?
A: The frequency response is 60Hz to 21,000Hz. This speaker reaches into the upper bass range and handles midrange and high frequencies well. For deep bass below 60Hz, pair it with a subwoofer in your system.

Q: Why does the DCX 165.3 use a neodymium tweeter magnet?
A: Neodymium is a rare-earth magnet material that delivers a much stronger magnetic field than ferrite in a smaller size. This allows the tweeter to perform with real authority while keeping the speaker's mounting depth shallow enough for tight door installations.

Q: Is the Hertz DCX 165.3 suitable for Indian weather conditions?
A: Yes. The TPU surround and water-repellent paper cone are designed to handle heat, humidity, and moisture — all common challenges across India's varied climate, including monsoon season and coastal humidity.

Q: Will the DCX 165.3 fit my car's door speaker position?
A: If your car has a standard 6.5-inch (165mm) door speaker cutout and at least 72mm of door cavity depth, the DCX 165.3 will fit. This includes most popular Indian vehicles from Maruti, Hyundai, Tata, Mahindra, Honda, and others. Check your specific model's speaker size before purchasing.

Q: How does the DCX 165.3 compare to factory 6.5-inch speakers?
A: Factory 6.5-inch speakers are typically built to a cost target — basic magnets, no proper crossover, and cheap dome materials. The DCX 165.3 uses a ferrite woofer magnet, neodymium tweeter, PEI dome, built-in crossover, TPU surround, and a water-repellent cone. The improvement in bass extension, clarity, and detail is immediately noticeable from the first listen.

Q: Is this product genuine and covered by warranty?
A: Yes. Dolphin Accessories sells 100% genuine Hertz products sourced from authorised distributors. Warranty terms follow Hertz India's standard policy — contact us after purchase for warranty support.