Hertz ML 2000.3 Review: 700 W Mille Legend Bass From a 10-Litre Sealed Box
Updated: Oct 6
The Hertz ML 2000.3 is an 8-inch (200 mm) Mille Legend subwoofer that puts a 100 mm voice coil and a neodymium motor behind a small cone, with a single 4 Ω coil rated at 700 W continuous and 1,400 W peak. Hertz optimised it for sealed boxes of just 10–17 litres. At an MRP of ₹69,990 it is the second most expensive Hertz subwoofer we list, below the 10-inch ML 2500.3. It is aimed at owners who want serious bass from a box small enough to share the boot with luggage. You can check the current offer on our ML 2000.3 product page.
Key takeaways
An 8-inch driver with the same 100 mm coil diameter and 700 W continuous rating as Hertz's 10-inch ML 2500.3.
Hertz lists two sealed volumes, 10 litres (compact) and 17 litres (performance), and no ported option.
86 dB sensitivity and a single 4 Ω coil mean it needs a capable mono amplifier.
Owner feedback is thin: one short retailer review, about a grille rather than sound.
Hertz ML 2000.3 specifications
Specification | Hertz ML 2000.3 |
|---|---|
Type | 8-inch (200 mm) subwoofer, single voice coil |
Impedance | 4 Ω |
Power handling | 700 W continuous / 1,400 W peak |
Sensitivity | 86 dB |
Frequency response | 30–600 Hz |
Voice coil | 100 mm (4 in), CCAW on a TIL fibreglass former |
Magnet | Neodymium |
Cone | Pressed pulp with mineral powders |
Xmax / Xmech | 13 mm / ±23 mm |
Fs / Qts / Vas | 40 Hz / 0.56 / 9.5 litres |
Recommended enclosure | Sealed, 10–17 litres |
Mounting depth | 117 mm |
Cutout diameter | 185 mm |
Weight | 6.12 kg |
Grille | Not included; optional MLG 2000.3 |
India MRP | ₹69,990 |
Figures come from Hertz's official ML 2000.3 tech sheet, and Hertz's product page lists the same values. Depth and cutout are taken from Hertz's drawing; OnlineCarStereo also lists the top-mount depth as 4-5/8 inches.
What Hertz packed into an 8-inch driver
The voice coil is the headline. It measures 100 mm across, is wound from copper-clad aluminium wire, and Hertz rates it for 1,400 W of musical power with a low working temperature. It is wound in/out so the layers cool evenly, on a TIL former, a fibreglass material Hertz says combines aluminium's heat dissipation with the stiffness of polyamide composites. The neodymium magnet sits inside the coil, and an aluminium shorting ring on the pole lowers distortion and helps low-frequency extension.
The cone is an exponential V-cone in pressed pulp with mineral powders, for rigidity and damping, on a Boundary Free butyl rubber surround that Hertz says raises output for a given outer diameter. The six-spoke aluminium basket has vents under the spider. Physics still applies: an 8-inch cone moves less air than a 10-inch at the same excursion, which is why the big coil and 13 mm of linear travel matter.
Box size: compact or performance
Hertz's product page gives two sealed volumes, labelled Sealed Compact at 10 litres and Sealed Performance at 17 litres, and the tech sheet calls the design ultra-compact, optimised for sealed boxes in that range. The larger box gives a gentler roll-off and a little more depth for the same power; the smaller one saves space and asks more of the amplifier.
That flexibility suits Indian cars. A 10-litre box can tuck into a boot corner, which helps in a small hatchback or a car where a CNG cylinder already takes much of the space, while 17 litres sits comfortably in most sedan boots. Allow for the 117 mm mounting depth and the panel thickness when you plan the external size.
Amplifier pairing and wiring
The single 4 Ω coil makes wiring simple: one sub is a 4 Ω load, and two in parallel are 2 Ω. With 86 dB sensitivity and a small sealed box, it needs a proper monoblock rather than a pair of bridged channels from a small four-channel amp. Hertz's 700 W continuous rating is the ceiling. JL Audio's JD1000/1 makes 600 W into 4 Ω at 14.4 V, inside that limit, and two ML 2000.3s in parallel on its 1,000 W 2 Ω rating would share about 500 W each.
Use power cable sized for the amplifier, fuse it near the battery and make a clean chassis ground. If you are adding your first amplifier, our guide to why car systems need an amplifier explains the basics.
What owners and reviewers say about the Hertz ML 2000.3
Feedback on this model is scarce. When we checked in October 2026, OnlineCarStereo had a single review, dated March 2024. It is about the grille the buyer added: they had worried about the exposed cone getting damaged, found the grille very durable and said it gives the sub a nice look. It says nothing about sound. Crutchfield showed no reviews.
Hertz's own news pages announce reviews of the ML 2000.3 by Italy's AudioReview and Germany's Car HiFi magazine, but the links to the full reviews no longer worked when we tried them, so we cannot report what either said. A 2016 German magazine test of the larger ML 2500.3, hosted by Hertz and not about this model, calls the ML 2000.3 the earlier sub that caused a stir, and says the two share little beyond the coil diameter and winding method.
There is no owner consensus to report. If you run an ML 2000.3, tell us how it sounds in your car.
Hertz ML 2000.3 vs ML 2500.3, JL Audio 8W3v3-4 and Hertz CS 200 S4
The 10-inch Hertz ML 2500.3 (₹99,990 MRP) adds 2 dB of sensitivity, a lower 27 Hz limit and 17 mm of Xmax, and Hertz promotes an EISA Award it won for 2016-2017. It needs a 17–25 litre box and 137 mm of depth, and costs ₹30,000 more.
JL Audio's 8W3v3-4 (₹39,990 MRP) is rated at 250 W continuous with 10 mm of Xmax, and JL publishes both an 8.5-litre sealed box and a 9.9-litre ported one. The Hertz handles far more power and has more linear travel; the JL costs ₹30,000 less and offers the ported option. Hertz's own CS 200 S4 (₹14,990 MRP) is the budget 8-inch: 150 W continuous, a 35 mm coil, a ferrite magnet and a 9.6-litre sealed box.
Who should buy it, and who shouldn't
Buy the ML 2000.3 if space is tight but you still want a sub that can take real power, you are building a sound-quality system, and you will give it a well-built sealed box and a capable mono amplifier.
Look elsewhere if you can fit a 17-litre-plus box (the ML 2500.3 will go deeper and louder), you want a ported enclosure, or your amplifier makes only a couple of hundred watts, in which case the price premium buys headroom you will not use.
Installation notes for Indian cars
Small sealed boxes punish leaks, so glue and seal every joint and the terminal cup, and use thick MDF so the panels do not flex. Fix the box down securely; speed breakers will move a loose box. If the sub faces the luggage area, fit the optional grille.
Place the amplifier where it gets airflow, away from the sun-heated rear glass, and route power cable along the floor away from signal leads. Treat rattles in the boot lid and number plate; our sound damping guide shows how. VA3 Car Studio offers professional installation in Ghaziabad.
Price and where to buy
The Hertz ML 2000.3 has an MRP of ₹69,990. VA3 Car Studio often sells below MRP, so see the current price on the ML 2000.3 product page. It comes as a bare driver; the MLG 2000.3 grille and the enclosure are extra. Every unit we sell is a genuine Hertz product.
The bottom line
The ML 2000.3 is Hertz's answer to a common problem: wanting a sub that can take serious power with very little boot space to give it. The catch is the price, the need for a serious amplifier, and almost no independent feedback to lean on. For a compact sound-quality build, it makes a strong case on paper.
Hertz ML 2000.3 FAQ
How big a box does the Hertz ML 2000.3 need?
Hertz recommends a sealed box of 10 to 17 litres. Its product page calls 10 litres the compact option and 17 litres the performance option, and no ported alignment is published.
What amplifier suits the ML 2000.3?
A mono amplifier with a solid 4 Ω rating. Hertz rates the sub at 700 W continuous on its single 4 Ω coil, so an amplifier making several hundred watts into 4 Ω, without exceeding that rating, is a good match.
Is the ML 2000.3 better than a 10-inch subwoofer?
Not for outright depth or output, where a good 10-inch has more cone area. Its advantage is that it gets high power handling and long excursion into a much smaller box, which matters when boot space is limited.
Buy Hertz Subwoofers in India
Check the Hertz ML 2000.3 Mille Legend 8 Inch Car Subwoofer price in India, browse more Hertz subwoofers or compare all car subwoofers in India. Want it fitted properly? Book subwoofer installation at our Ghaziabad studio.
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