Hertz MPX 165.3 PRO 6.5" Coaxial Car Speaker

If you've ever sat in a car and felt like the music was just playing at you rather than around you, the Hertz MPX 165.3 PRO is built to change that. This 6.5" coaxial speaker is engineered to recreate the kind of natural, three-dimensional soundstage you'd expect from a live performance — right inside your car. With a 200W peak power rating, a concentric tweeter design, and premium materials throughout, it's a serious upgrade for anyone who genuinely cares about how their music sounds on the road.

What is this Product?

The Hertz MPX 165.3 PRO is a 6.5" (165 mm) coaxial car audio speaker from Hertz's MPX Pro series. It combines a woofer and a tweeter into a single unit, with the tweeter mounted concentrically inside the woofer's voice coil. This design creates one single point of sound emission, which is the key to its natural, phase-accurate sound. It handles up to 200W peak power (100W continuous) at 4 Ohm impedance and covers a frequency range of 45 Hz to 21,500 Hz.

Why Choose This Product?

• ✅ Concentric tweeter placement delivers a single emission point for a natural, live-music soundstage
• ✅ 200W peak power handling for loud, clean audio even at high volumes
• ✅ 36 mm pure copper voice coil ensures dynamic, compression-free bass reproduction
• ✅ Neodymium tweeter magnet for crisp, detailed high-frequency response
• ✅ Pressed-pulp cotton-fiber cone balances stiffness and lightness for wide frequency coverage
• ✅ Low-profile aluminium alloy basket fits standard 6.5" door speaker locations
• ✅ Anti-vibration rubber magnet cover keeps the sound clean at all power levels

Key Features

• Component Type: Coaxial (woofer + tweeter in one unit)
• Speaker Size: 165 mm / 6.5 inches — fits standard car door speaker cutouts
• Peak Power: 200W — handles high-powered head units and amplifiers
• Continuous Power: 100W — rated for sustained, real-world listening
• Impedance: 4 Ohm — compatible with most factory and aftermarket head units
• Frequency Response: 45 Hz to 21,500 Hz — covers deep bass through airy highs
• Woofer Voice Coil: 36 mm (1.42") pure copper, wound on a Polyamide former
• Tweeter Voice Coil: 20 mm (0.8") for precise high-frequency detail
• Woofer Magnet: High-density flux ferrite for low distortion at high power
• Tweeter Magnet: Neodymium for strong, efficient high-frequency output
• Cone Material: Pressed-pulp with cotton fibers — stiff yet lightweight
• Dome Material: Tetolon for smooth, extended treble response
• Surround: Boundary Free rubber surround for improved efficiency and wider midbass
• Xmech: ±6 mm (0.24") mechanical excursion for controlled bass movement
• Weight (per speaker): 1.27 kg (2.8 lbs)
• Basket: Acoustically transparent aluminium alloy with diamond-cut finish

Advanced Technologies

Concentric Coaxial Tweeter (Center Tuning Duct): The tweeter is built directly into the woofer's voice coil, creating a single point of sound emission. This is the same principle used in high-end studio monitors — it means the highs and mids arrive at your ears at exactly the same time, giving you a coherent, natural soundstage rather than the scattered sound you get from conventional coaxials. The Center Tuning Duct geometry also lowers the tweeter's resonance frequency, and internal damping materials keep the acoustic emission linear and controlled.

36 mm Pure Copper Woofer Voice Coil on Polyamide Former: Copper is a better conductor than aluminium, and a larger voice coil means more surface area to dissipate heat. The result is a woofer that stays cool under sustained high-power use and reproduces bass with minimal dynamic compression — meaning the bass stays tight and punchy even when you push the volume.

Pressed-Pulp Cone with Cotton Fibers: The cone is the part of the speaker that actually moves air and creates sound. Hertz uses a pressed-pulp material reinforced with cotton fibers, which gives the cone the right balance of rigidity and lightness. The cone profile is also geometrically matched to the tweeter's emission pattern, so the transition between bass and treble is smooth and phase-consistent.

Boundary Free Rubber Surround: The surround connects the cone to the basket and controls how far the cone can move. Hertz's Boundary Free design allows greater cone excursion than a standard surround, which translates to better efficiency and deeper, more extended midbass — especially important in car door installations where bass can be hard to achieve.

Oversized Ferrite Magnet with Low-Carbon Iron Plates: A larger magnet creates a stronger magnetic field, which gives the voice coil more control over the cone. The low-carbon iron plates reduce magnetic distortion, keeping the sound clean even when the speaker is working hard at high power levels.

Benefits

• 🎵 Hear your music the way it was recorded — natural, detailed, and three-dimensional
• 🔊 Clean, loud audio without distortion, even at high volumes
• 🏎️ Deep, controlled bass that fills your car without sounding muddy
• ⚡ Handles high-powered amplifiers without breaking a sweat
• 🔧 Straightforward installation in standard 6.5" door speaker locations
• 💎 Premium build quality that lasts — no rattles, no vibrations
• 🎯 Wide frequency range means you don't need a separate tweeter upgrade

Who Should Buy This Product?

• Car audio enthusiasts who want a significant upgrade from factory speakers without going full component
• Drivers who listen to a wide range of music — from bass-heavy tracks to acoustic and vocal-heavy genres
• Anyone running an aftermarket head unit or amplifier and needs speakers that can keep up
• Those who want a clean, professional installation without the complexity of a separate crossover network
• Music lovers who want live-performance-quality sound during their daily commute

Technical Specifications

Why Choose Dolphin Accessories?

• ✅ 100% Genuine Products — Every product we sell is sourced directly from authorised distributors. No fakes, no grey imports.
• ✅ Expert Guidance — Our team knows car audio. We help you pick the right product for your car and your setup, not just the most expensive one.
• ✅ Pan-India Delivery — We ship to every corner of India, with careful packaging to make sure your order arrives in perfect condition.
• ✅ Secure Packaging — Audio equipment is fragile. We pack every order to survive the journey, so you receive it exactly as it left us.
• ✅ After-Sales Support — Have a question after your purchase? We're here to help with installation advice, compatibility queries, and warranty support.
• ✅ Trusted by Enthusiasts — Thousands of car audio enthusiasts across India trust Dolphin Accessories for their upgrades. Join the community.

Frequently Asked Questions

Q: What size are the Hertz MPX 165.3 PRO speakers?
A: They are 165 mm (6.5 inch) coaxial speakers, which is the most common car door speaker size. They fit the majority of standard 6.5" speaker cutouts without modification.

Q: What is the power handling of the Hertz MPX 165.3 PRO?
A: The MPX 165.3 PRO handles 100W continuous (RMS) and 200W peak power. This makes them compatible with both factory head units and aftermarket amplifiers.

Q: What does "coaxial" mean and how is this different from component speakers?
A: A coaxial speaker combines the woofer and tweeter into a single unit, making installation simpler. Component speakers separate the woofer and tweeter for more precise placement. The MPX 165.3 PRO's concentric tweeter design gives it much of the sonic benefit of a component system in a coaxial package.

Q: What is the impedance of the Hertz MPX 165.3 PRO?
A: The impedance is 4 Ohm, which is the standard for most car audio head units and amplifiers. They will work with virtually any aftermarket car stereo.

Q: What frequency range do these speakers cover?
A: The MPX 165.3 PRO covers 45 Hz to 21,500 Hz, giving you deep bass, clear midrange, and extended high frequencies all from a single speaker unit.

Q: Do I need an amplifier to run the Hertz MPX 165.3 PRO?
A: No, you can run them directly from a good aftermarket head unit. However, pairing them with an amplifier will allow you to take full advantage of their 200W peak power handling and get the best possible sound quality.

Q: What is the concentric tweeter design and why does it matter?
A: In the MPX 165.3 PRO, the tweeter is mounted concentrically inside the woofer's voice coil. This creates a single point of sound emission, so highs and mids reach your ears at the same time. The result is a more natural, coherent soundstage — similar to what you'd hear from a high-end studio monitor.

Q: Are these speakers compatible with my car?
A: If your car has standard 6.5" (165 mm) door speaker locations, the MPX 165.3 PRO should fit. We recommend checking your car's speaker size before ordering, or contacting our team for fitment advice specific to your vehicle.

Q: What is the voice coil material and why does it matter?
A: The woofer uses a 36 mm pure copper voice coil wound on a Polyamide former. Copper conducts electricity more efficiently than aluminium, which means better power handling and less heat buildup — keeping the sound clean even at high volumes over long listening sessions.

Q: Do the Hertz MPX 165.3 PRO speakers come as a pair?
A: Yes, they are sold as a pair (two speakers), which is standard for car audio coaxial speakers.

Q: What is the warranty on the Hertz MPX 165.3 PRO?
A: Please contact the Dolphin Accessories team for warranty details specific to this product. We support all after-sales queries and can guide you through the warranty process if needed.

Q: How do I buy the Hertz MPX 165.3 PRO from Dolphin Accessories?
A: Simply add the product to your cart and place your order online. We offer pan-India delivery with secure packaging. If you have any questions before buying, our team is available to help you make the right choice.