Hertz ML 2500.3 Legend 10" 1400W Neodymium Car Subwoofer
If you've ever stood close to a live concert stage and felt the bass move through your chest, you'll know that feeling is hard to replicate in a car. The Hertz ML 2500.3 Legend was built specifically to close that gap. Engineered by the Hertz Audio R&D team with one clear goal — bring the emotion of a live performance into your vehicle — this 10-inch subwoofer delivers deep, clean, and powerful bass without the distortion or dynamic compression that holds most car subs back.
What is the Hertz ML 2500.3 Legend?
The ML 2500.3 is part of Hertz's flagship Legend series of car audio subwoofers. It features a 250mm (10-inch) driver with a 1400W peak power handling, a neodymium magnet motor, and a 100mm CCAW voice coil wound on a TIL fibreglass former. The entire design is optimised for sealed box installations with a compact 17–25 litre enclosure volume, making it a practical choice even in vehicles with limited boot space. This is not just a powerful subwoofer — it's a precision acoustic instrument.
Why Choose the Hertz ML 2500.3 Legend?
- ✅ Flagship Legend series — Hertz's highest-performance subwoofer line
- ✅ Neodymium magnet motor for exceptional efficiency in a compact form factor
- ✅ 1400W peak power handling — built for serious bass output
- ✅ Extremely low distortion at high excursion levels
- ✅ Optimised for sealed enclosures — easier to install in most vehicles
- ✅ CNC-machined basket with diamond-cut Hertz logo — premium finish inside and out
- ✅ FEA-simulated motor design for consistent magnetic field stability
Key Features
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250mm (10") Driver Size — A versatile size that balances deep bass extension with compact installation requirements.
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1400W Peak / 700W Continuous Power — Handles serious amplifier power without breaking a sweat.
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4 Ohm Impedance — Compatible with a wide range of mono and multi-channel amplifiers.
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Neodymium Magnet (95 x 28 x 6mm) — Delivers a powerful magnetic field in a much smaller and lighter package than ferrite alternatives.
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100mm (4") CCAW Voice Coil — Copper-clad aluminium wire keeps weight low and heat dissipation high, reducing dynamic compression.
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TIL Fibreglass Former — Combines the heat dissipation of aluminium with the stiffness of polyamide composites for no-compromise performance.
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Exponential V-cone® — Optimised cone geometry for high stiffness and resistance to deformation even at maximum excursion (±27mm).
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Mineral-Injected Paper Cone — Superior rigidity and damping for accurate, controlled bass reproduction.
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"Boundary Free" IIR Rubber Surround — Delivers higher SPL than conventional surrounds of the same diameter.
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Aluminium Shorting Ring on Central Pole — Minimises distortion and extends low-frequency response.
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Anti-Resonant Aluminium Alloy Basket — Six-spoke self-standing structure with built-in venting holes beneath the spider for thermal management.
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CNC Diamond-Cut Basket Edge — Precision-machined with the Hertz logo for a premium, show-quality appearance.
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Frequency Response: 27–500 Hz — Covers the full sub-bass and bass range with authority.
Advanced Technologies
FEA-Optimised Neodymium Motor System: The motor assembly was designed using Finite Element Analysis (FEA) simulations to ensure the magnetic field remains stable even at extreme excursion levels. Very low carbon content CNC-machined plates maximise magnetic permeability and keep distortion low even when the amplifier is pushing hard. The result is a motor that stays in control when most others start to fall apart.
TIL Voice Coil Former: The voice coil is wound on a TIL (Thermally Improved Laminate) fibreglass former — a material that combines the heat dissipation properties of aluminium with the structural stiffness of polyamide composites. The In/Out winding method ensures even cooling across all coil layers, which directly reduces dynamic compression and keeps your bass sounding consistent at high volume levels.
Exponential V-cone® Geometry: The cone shape is not arbitrary — it follows an exponential V-profile that has been mathematically optimised for maximum stiffness-to-weight ratio. This means the cone resists deformation even at the full ±27mm mechanical excursion, preserving the accuracy of bass reproduction at all output levels.
"Boundary Free" IIR Rubber Surround: The Integrated Inner Roll surround design removes the traditional boundary constraints of the surround, allowing the cone to travel further and more freely. This translates directly into higher SPL output compared to conventional subwoofers of the same external diameter — you get more bass from the same size driver.
Benefits
- 🎵 Feel the bass the way the artist intended — deep, clean, and emotionally engaging
- ⚡ Handles high amplifier power without distortion or thermal shutdown
- 📦 Compact sealed-box design fits in most car boots without major modifications
- 🔇 Extremely low distortion even at maximum excursion — no unwanted noise
- 🌡️ Advanced thermal management keeps performance consistent on long drives
- 🏆 Flagship Legend series — the best Hertz has to offer in subwoofer technology
- 🔩 Premium CNC-machined basket — looks as good as it sounds
Who Should Buy the Hertz ML 2500.3 Legend?
- Car audio enthusiasts who want reference-grade bass performance in their vehicle
- Music lovers who attend live concerts and want to recreate that experience on the road
- Audiophiles upgrading from entry or mid-level subwoofers to a flagship driver
- Installers and system builders looking for a high-performance sealed-box subwoofer
- Anyone who demands low distortion and high output from a compact 10-inch driver
Technical Specifications
| Specification |
Value |
| Model |
Hertz ML 2500.3 Legend |
| Driver Size |
250 mm (10 inch) |
| Power Handling – Continuous |
700 W |
| Power Handling – Peak |
1400 W |
| Impedance |
4 Ohm |
| Voice Coil Diameter |
100 mm (4 inch) |
| Frequency Response |
27 – 500 Hz |
| Magnet Type |
Neodymium |
| Magnet Size (D x d x h) |
95 x 28 x 6 mm (3.7 x 1.1 x 0.24 in) |
| Mechanical Excursion (Xmech) |
±27 mm (±1.06 in) |
| Cone Material |
Mineral-injected pressed-pulp paper |
| Surround Type |
"Boundary Free" IIR Rubber |
| Voice Coil Material |
CCAW (Copper-Clad Aluminium Wire) |
| Voice Coil Former |
TIL Fibreglass |
| Basket Material |
Anti-resonant aluminium alloy |
| Recommended Enclosure |
Sealed box, 17 – 25 litres |
| Component Weight |
7.5 kg (16.53 lb) |
| Series |
Legend |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products — Every product we sell is sourced directly from authorised distributors. No counterfeits, no compromises.
- ✅ Expert Guidance — Our team understands car audio. We help you choose the right subwoofer, amplifier, and enclosure for your specific vehicle and listening preferences.
- ✅ Pan-India Delivery — We ship to every corner of India, with careful packaging to ensure your equipment arrives in perfect condition.
- ✅ Secure Packaging — Premium car audio equipment deserves premium protection. Every order is packed to withstand the journey.
- ✅ After-Sales Support — Have a question after your purchase? Our team is here to help with installation advice, compatibility queries, and more.
- ✅ Trusted by Enthusiasts — Dolphin Accessories is the go-to destination for serious car audio enthusiasts across India.
Frequently Asked Questions
Q: What amplifier power does the Hertz ML 2500.3 Legend need?
A: The ML 2500.3 handles 700W continuous and 1400W peak at 4 Ohm. For best results, pair it with a mono amplifier rated between 500W and 1000W RMS at 4 Ohm.
Q: What size enclosure does the Hertz ML 2500.3 work best in?
A: It is optimised for sealed (closed) enclosures with a volume of 17 to 25 litres. This compact requirement makes it suitable for most car boots without major fabrication work.
Q: Is the Hertz ML 2500.3 Legend suitable for daily listening or only for competition use?
A: It is designed for both. The low distortion and controlled excursion make it equally enjoyable for everyday music listening as it is impressive in a high-output system.
Q: What is the impedance of the Hertz ML 2500.3?
A: The ML 2500.3 is a single 4 Ohm subwoofer, compatible with most mono amplifiers available in the market.
Q: Why does the Hertz ML 2500.3 use a neodymium magnet?
A: Neodymium magnets produce a stronger magnetic field in a much smaller and lighter package compared to traditional ferrite magnets. This allows the ML 2500.3 to deliver exceptional performance while keeping the overall size and weight compact.
Q: What does the Exponential V-cone® technology do?
A: The V-cone® is a specially shaped cone with an exponential profile that maximises stiffness while minimising weight. This prevents the cone from flexing or deforming at high excursion levels, keeping bass reproduction accurate and distortion-free.
Q: What is the maximum excursion of the Hertz ML 2500.3?
A: The mechanical excursion (Xmech) is ±27mm (±1.06 inches), which is very high for a 10-inch subwoofer and contributes to its ability to produce deep, high-output bass.
Q: Can I use the Hertz ML 2500.3 in a ported (vented) enclosure?
A: The ML 2500.3 is specifically optimised for sealed enclosures. While it may work in a ported box, the manufacturer's recommended parameters and best performance are achieved in a sealed box of 17–25 litres.
Q: What is the frequency response of the Hertz ML 2500.3 Legend?
A: The frequency response is 27 Hz to 500 Hz, covering deep sub-bass all the way through the upper bass range.
Q: How heavy is the Hertz ML 2500.3 Legend?
A: Each unit weighs 7.5 kg (16.53 lb), which is relatively compact for a subwoofer with this level of motor strength and performance.
Q: Does Dolphin Accessories provide installation support for the Hertz ML 2500.3?
A: Yes. Our team can guide you on amplifier matching, enclosure sizing, and wiring. Reach out to us before or after your purchase for personalised advice.
Q: Is the Hertz ML 2500.3 Legend covered by a warranty?
A: Yes, it comes with the standard Hertz manufacturer warranty. Please contact Dolphin Accessories after your purchase for warranty registration and support details.
