Hertz MLK 165.3 Legend 6.5" 2-Way Component Speaker System
The Hertz Legend series has always been about one thing: getting the music right. The MLK 165.3 Legend brings that same philosophy into a more accessible package, inheriting the core technologies of Hertz’s flagship ML 1650.3 Legend — the Boundary Free Surround, the V-Cone® pressed-pulp woofer, the six-spoke aluminium basket — and pairing them with a Neodymium ML 28.3 tweeter and a crossover that gives you real control over how the system sounds in your specific car. This is a speaker system built for people who take their music seriously.
What is the Hertz Mille Legend MLK 165.3 ?
The MLK 165.3 Legend is a 6.5-inch (165mm) 2-way component car speaker system from Hertz’s Legend series. It combines the ML 165.3 Legend woofer, the ML 28.3 Legend Neodymium tweeter, and the MLCX 165.3 dedicated passive crossover. The woofer is derived directly from the flagship ML 1650.3 Legend, sharing its key structural and acoustic technologies while using a high-density ferrite magnet assembly optimised for midrange performance. The system handles 300W peak and 150W continuous power, with a frequency response stretching from 40 Hz to 25,000 Hz.
Why Choose the Hertz MLK 165.3 Legend?
- ✅ Woofer technology inherited directly from Hertz’s flagship ML 1650.3 Legend
- ✅ ML 28.3 Neodymium tweeter — the same magnet assembly as the top-of-the-line ML 280.3 Legend
- ✅ V-Cone® pressed-pulp cone with cotton fibres for natural, accurate midrange reproduction
- ✅ Boundary Free Surround (BFS) for extended low-frequency reach without a subwoofer
- ✅ Hi-Contour crossover control to adjust the tweeter cut-off frequency to your car and mounting position
- ✅ 3-position tweeter level control (2 dB step attenuation) for precise timbre balance
- ✅ Large 36mm woofer voice coil for excellent power handling and thermal stability
- ✅ 91 dB sensitivity — performs well with a head unit and scales beautifully with amplification
Key Features
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6.5-inch (165mm) ML 165.3 Legend Woofer: Derived from the flagship ML 1650.3 Legend, featuring a pressed-pulp cone with cotton fibres, a six-spoke aluminium basket with vented holes, and a 36mm voice coil — all optimised for accurate midrange and extended bass
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ML 28.3 Legend Neodymium Tweeter (35mm / 1.38-inch): Shares the same Neodymium magnet assembly and FEA-optimised dome profile as the ML 280.3 Legend tweeter, delivering detailed, extended high-frequency reproduction up to 25,000 Hz
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28mm (1.1-inch) Tweeter Voice Coil: A large voice coil for a tweeter, contributing to smooth, controlled high-frequency output
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36mm (1.4-inch) Woofer Voice Coil: Significantly larger than standard 25mm coils, providing superior heat dissipation and consistent performance under sustained power
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300W Peak / 150W Continuous Power: Handles serious amplifier output without distortion or thermal stress
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4 Ohm Impedance: Compatible with virtually all aftermarket head units and amplifiers
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91 dB Sensitivity: Efficient enough to perform well with a quality head unit, and scales with amplification
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40 Hz – 25,000 Hz Frequency Response: Covers the full audible spectrum and beyond, capturing ultra-fine detail in high-resolution recordings
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MLCX 165.3 Crossover at 3.5 kHz (12 dB/Oct): A dedicated crossover with Hi-Contour cut-off selector and 3-position tweeter level control for precise system tuning
Advanced Technologies
V-Cone® Pressed-Pulp Cone with Cotton Fibres: The ML 165.3 woofer uses a pressed-pulp cone reinforced with cotton fibres — a material chosen for its combination of rigidity, internal damping, and low mass. Unlike synthetic cones, pressed pulp has a natural ability to absorb unwanted resonances, which means the woofer reproduces the midrange with a warmth and accuracy that synthetic materials often struggle to match. The V-Cone® geometry further enhances off-axis sound dispersion, so the sound spreads evenly across the cabin rather than projecting in a narrow beam.
Boundary Free Surround (BFS): The BFS surround design allows the woofer cone to travel further with less mechanical resistance, extending its low-frequency reach well beyond what a standard 6.5-inch speaker can achieve. In practical terms, this means deeper, more satisfying bass without a dedicated subwoofer — particularly useful in hatchbacks, sedans, and SUVs where boot space is at a premium.
Six-Spoke Aluminium Basket with Vented Holes: The woofer’s basket is cast from aluminium with a six-spoke design and vented holes throughout. The aluminium construction keeps the basket rigid under high excursion, preventing flex that would otherwise introduce distortion. The vented holes improve airflow around the voice coil, helping to keep it cool during sustained high-power use.
ML 28.3 Neodymium Tweeter with FEA-Optimised Dome: The ML 28.3 tweeter shares its Neodymium magnet assembly with the flagship ML 280.3 Legend tweeter — the same rare-earth magnet technology that gives Hertz’s top-of-the-line tweeter its speed and detail. The dome profile has been refined using Finite Element Analysis (FEA) to minimise resonance and ensure smooth, extended high-frequency response. The result is a tweeter that sounds open and detailed without harshness.
Hi-Contour Crossover Control: The MLCX 165.3 crossover features a Hi-Contour selector that adjusts the tweeter’s crossover cut-off frequency. This lets you tune the crossover point to match your tweeter’s mounting position in the car — a tweeter mounted on the A-pillar close to the listener behaves differently to one mounted in the door, and the Hi-Contour control lets you compensate for that difference without any external equaliser.
3-Position Tweeter Level Control: Unlike the simple 2-position (0/+2 dB) controls found on many component crossovers, the MLCX 165.3 offers a 3-position tweeter level control with 2 dB step attenuation. This gives you finer control over the tweeter’s output level relative to the woofer, making it easier to achieve a natural, balanced timbre regardless of your car’s acoustics or your personal preference.
Benefits
- 🎵 Music sounds natural and accurate — the pressed-pulp cone and Neodymium tweeter work together for genuine tonal fidelity
- 🔊 Extended bass from a 6.5-inch woofer — BFS technology reaches 40 Hz without a subwoofer
- 🎧 Crisp, detailed highs up to 25,000 Hz — every cymbal, string, and vocal harmonic reproduced faithfully
- ⚡ Fine-tune the crossover to your car with Hi-Contour — no DSP or equaliser required
- 🎛️ 3-position tweeter level control for precise timbre balance — more flexibility than most component crossovers offer
- 🏆 Legend series engineering at a more accessible price point — flagship DNA without the flagship price tag
Who Should Buy the Hertz MLK 165.3 Legend?
- Audiophiles who want Legend series sound quality without stepping up to the full MLK 1650.3 flagship
- Car audio enthusiasts upgrading from a Mille Pro system who want noticeably better tweeter performance and crossover flexibility
- Music lovers who listen to acoustic, jazz, classical, or vocal music where tonal accuracy and natural timbre matter most
- Drivers who want to fine-tune their system to their specific car without investing in a DSP processor
- Anyone building a high-quality front stage with a dedicated amplifier and wanting a speaker system that justifies the investment
Technical Specifications
| Specification |
Value |
| System Type |
2-Way Component System |
| Woofer Size |
165 mm (6.5 in.) |
| Power Handling – Continuous |
150 W |
| Power Handling – Peak |
300 W |
| Impedance |
4 Ohm |
| Sensitivity |
91 dB SPL |
| Frequency Response |
40 Hz – 25,000 Hz |
| Tweeter Model |
ML 28.3 Legend |
| Tweeter Diaphragm |
35 mm (1.38 in.) |
| Tweeter Magnet Type |
Neodymium |
| Tweeter Voice Coil Diameter |
28 mm (1.1 in.) |
| Woofer Model |
ML 165.3 Legend |
| Woofer Voice Coil Diameter |
36 mm (1.4 in.) |
| Woofer Cone Material |
Pressed-pulp with cotton fibres (V-Cone®) |
| Woofer Basket |
Six-spoke aluminium with vented holes |
| Crossover Model |
MLCX 165.3 |
| Crossover Type |
2-Way Passive Crossover |
| Crossover Cut-off |
3.5 kHz at 12 dB/Oct |
| Hi-Contour Control |
Yes — adjustable tweeter cut-off frequency |
| Tweeter Level Control |
3-position, 2 dB step attenuation |
| Woofer Weight |
1.65 kg (3.64 lb) |
| Tweeter Weight |
0.075 kg (0.16 lb) |
| Crossover Weight |
0.37 kg (0.82 lb) |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products — Every Hertz speaker we sell is sourced directly from authorised distributors. No grey market, no counterfeits.
- ✅ Expert Guidance — Our team understands car audio. We’ll help you match the right speakers, amplifier, and head unit for your specific car and budget.
- ✅ Pan-India Delivery — We ship to every corner of India, with fast dispatch and reliable courier partners.
- ✅ Secure Packaging — Speakers are fragile. We pack every order to survive the journey, so your product arrives in perfect condition.
- ✅ After-Sales Support — Have a question after your purchase? Our support team is here to help with installation guidance and warranty queries.
- ✅ Trusted by Enthusiasts — Dolphin Accessories is the go-to destination for serious car audio upgrades across India.
Frequently Asked Questions
Q: What does the Hertz MLK 165.3 Legend include in the box?
A: The kit includes a pair of ML 165.3 Legend woofers, a pair of ML 28.3 Legend Neodymium tweeters, and a pair of MLCX 165.3 passive crossovers — everything needed for a complete 2-way component installation.
Q: How does the MLK 165.3 Legend differ from the flagship MLK 1650.3 Legend?
A: The MLK 165.3 Legend inherits the core woofer technologies from the MLK 1650.3 Legend — the BFS surround, V-Cone® pressed-pulp cone, six-spoke aluminium basket, and 36mm voice coil — but uses a high-density ferrite magnet assembly rather than the flagship’s more exotic configuration. The ML 28.3 tweeter shares the same Neodymium magnet assembly as the ML 280.3 Legend but omits the die-cast aluminium faceplate and CNC-machined solid aluminium body. The crossover does not include bi-amplification capability. The result is a system that delivers genuine Legend series sound quality at a more accessible price point.
Q: What is the Hi-Contour control on the MLCX 165.3 crossover?
A: The Hi-Contour control adjusts the ML 28.3 tweeter’s crossover cut-off frequency, changing the point at which the tweeter takes over from the woofer. This lets you tune the crossover to match your tweeter’s mounting position — a tweeter mounted close to the listener on the A-pillar behaves differently to one mounted further away in the door, and the Hi-Contour control lets you compensate without any external equaliser or DSP.
Q: What does the 3-position tweeter level control do?
A: It adjusts the tweeter’s output level relative to the woofer in 2 dB steps, giving you three distinct settings. This lets you fine-tune the tonal balance of the system to suit your car’s acoustics and your personal preference — more flexibility than the standard 2-position (0/+2 dB) controls found on most component crossovers.
Q: Why does the ML 165.3 woofer use a pressed-pulp cone with cotton fibres?
A: Pressed pulp with cotton fibres is chosen for its combination of low mass, rigidity, and natural internal damping. It absorbs unwanted resonances more effectively than synthetic cone materials, which means the woofer reproduces the midrange with a warmth and accuracy that many synthetic cones can’t match. It’s a material choice that prioritises tonal accuracy over raw efficiency.
Q: What is Boundary Free Surround (BFS) technology?
A: BFS is a surround design that allows the woofer cone to travel further with less mechanical resistance. This extends the woofer’s low-frequency reach, allowing the MLK 165.3 Legend to produce deeper bass than a standard 6.5-inch speaker — useful if you don’t have space for a dedicated subwoofer.
Q: Does the MLK 165.3 Legend support bi-amplification?
A: No. Unlike the MLK 1650.3 Legend, the MLCX 165.3 crossover does not include a bi-amplification switch. The system operates in standard passive mode with a single amplifier channel per side.
Q: What amplifier power is recommended for the MLK 165.3 Legend?
A: The speakers handle 150W continuous and 300W peak at 4 Ohm. An amplifier delivering 100W–150W RMS per channel at 4 Ohm is the ideal match for clean, dynamic performance.
Q: Will the Hertz MLK 165.3 Legend fit my car’s factory speaker location?
A: The 6.5-inch (165mm) woofer fits the most common factory speaker cutout in doors and rear decks. We recommend checking your vehicle’s mounting depth and cutout diameter before installation, as the woofer’s aluminium basket and larger voice coil assembly may require more depth than a standard speaker.
Q: Where should I mount the ML 28.3 tweeter?
A: For the best soundstage, mount the tweeter on the A-pillar or dashboard, angled toward the listening position. The Hi-Contour control on the crossover lets you adjust the cut-off frequency to suit whichever mounting position you choose.
Q: How does the ML 28.3 tweeter compare to the ML 280.3 Legend tweeter?
A: The ML 28.3 shares the same Neodymium magnet assembly and FEA-optimised dome profile as the ML 280.3 Legend. The key differences are the absence of the die-cast aluminium faceplate, the CNC-machined solid aluminium body, and the copper short-circuit ring found on the ML 280.3. These omissions reduce cost without significantly compromising acoustic performance.
Q: Does the Hertz MLK 165.3 Legend come with a warranty?
A: Yes, Hertz products sold through authorised dealers like Dolphin Accessories come with the manufacturer’s warranty. Please contact us for specific warranty terms applicable to your purchase.
