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Hertz
Hertz Mille ML 2500.3 LEGENDCar Audio Subwoofer
Music fans who attend live concerts know well the emotions that low undistorted frequencies without dynamic compression can arouse. For this reason, the HertzAudioVideo R&D created ML 2500.3 Legend car audio subwoofer.
Highlights
- Extraordinary large neodymium magnet, optimized with FEA simulations, to ensure magnetic field stability even under high excursion.
- Very low carbon content CNC machined plates, for maximum magnetic permeability and low distortion at high power levels.
- Voice coil internal magnet with high size / performance ratio, for maximum efficiency.
- CCAW, 100 mm (4”) voice coil, capable of handling 1400 W musical power, keeping the working temperature very low, reducing dynamic compression to the minimum.
Key specs
Full specs- Size mm (in.)
- 250 (10)
- Power Handling - Continuous W
- 700
- Power Handling - Peak W
- 1400
- Impedance Ohm
- 4
- No Filter Component
- Subwoofers
- Voice Coil Ø
- 100 (4)
- Frequency Response Hz
- 27 ÷ 500
- Magnet size D x d x h mm (in.)
- 95 x 28 x 6 D x d x h (in.) (3.7 x 1.1 x 0.24)
Key specs
Full specs- Size mm (in.)
- 250 (10)
- Power Handling - Continuous W
- 700
- Power Handling - Peak W
- 1400
- Impedance Ohm
- 4
Highlights
Overview- Extraordinary large neodymium magnet, optimized with FEA simulations, to ensure magnetic field stability even under high excursion.
- Very low carbon content CNC machined plates, for maximum magnetic permeability and low distortion at high power levels.
- Voice coil internal magnet with high size / performance ratio, for maximum efficiency.
Overview
Music fans who attend live concerts know well the emotions that low undistorted frequencies without dynamic compression can arouse. For this reason, the HertzAudioVideo R&D created ML 2500.3 Legend car audio subwoofer. During the long development phase, the designers set themselves just one ambitious goal: to transfer the emotions of a live performance to the car environment. Thanks to a completely renewed design, ML2500.3 car audio subwoofers have extremely compact size and are optimized to play in enclosures with reduced boxes. This choice of design combines two requirements hard to achieve up to now: reference performance and ease of installation.
Highlights
Key features
- Extraordinary large neodymium magnet, optimized with FEA simulations, to ensure magnetic field stability even under high excursion.
- Very low carbon content CNC machined plates, for maximum magnetic permeability and low distortion at high power levels.
- Voice coil internal magnet with high size / performance ratio, for maximum efficiency.
- CCAW, 100 mm (4”) voice coil, capable of handling 1400 W musical power, keeping the working temperature very low, reducing dynamic compression to the minimum.
- Voice coil wound with In/Out method, for even cooling of the different coil layers.
- Voice coil wound on TIL former: this material made from fibreglass combines the heat dissipation properties of aluminium with the stiffness of Polyamide composites, for a no-compromise acoustic performance.
- Central pole featuring “Aluminium Shorting Ring”, for minimum distortion and maximum extension at low frequency.
- “Boundary Free” IIR rubber surround, for higher SPL performance than other subwoofers with same external diameter.
- Exponential V-cone® with optimized geometry for high cone stiffness and strong resistance to deformation even at maximum excursions.
- Mineral-injected paper cone, for superior rigidity and damping.
- Very acoustically transparent anti-resonant aluminium alloy basket featuring six-spoke self-standing structure and built-in venting holes underneath the spider.
- CNC machined elegant diamond-cut basket edge featuring the Hertz logo.
Technologies
V-CONE®
The V-CONE® profile prevents the cone from deforming during its course, ensuring that the “piston” works in a
Boundary Free Surround
This technology provides the ability to achieve wider emission surface of the cone compared to speakers with same
Specs
Technical Specs
12
| Size mm (in.) | 250 (10) |
| Power Handling - Continuous W | 700 |
| Power Handling - Peak W | 1400 |
| Impedance Ohm | 4 |
| No Filter Component | Subwoofers |
| Voice Coil Ø | 100 (4) |
| Frequency Response Hz | 27 ÷ 500 |
| Magnet size D x d x h mm (in.) | 95 x 28 x 6 D x d x h (in.) (3.7 x 1.1 x 0.24) |
| Weight of one component kg (lb.) | 7,5 (16.53) |
| Magnet | Neodymium |
| Cone | Pressed-pulp cone with mineral powders |
| Xmech mm (in.) | ±27 (1.06) |
Electro-acoustic Specs
13
| D mm | 212,5 |
| Xmax mm | 17 |
| Re Ohm | 2,75 |
| Fs Hz | 33 |
| Le mH | 1,05 |
| Vas I | 23,5 |
| Mms g | 175 |
| Cms mm/N | 0,125 |
| BL T*m | 12,6 |
| Qts | 0,63 |
| Qes | 0,65 |
| Qms | 7,5 |
| Spl dB | 88 |
Physical Specs
6
| A | 268 mm | 10.55 in. |
| B | 234 mm | 9.21 in. |
| C | 159 mm | 6.26 in. |
| D | 137 mm | 5.4 in. |
| E | 274 mm | 10.78 in. |
| F | 50 mm | 1.97 in. |
Frequency response
Visual spec reference.
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Enclosures / Box Advisor
Sealed - Compact
Best performance / space ratio. Enclosure size similar to that of a side trunk installation.
- Vb l(cu.ft.)
- 17 (0.6)
- Fb Hz
- 49
- Qtc
- 0,89
- W mm(in.)
- 350 (13.78)
- H mm(in.)
- 300 (11.81)
- D mm(in.)
- 250 (9.84)
- Mounting Hole - M
- 235 (9.25)
- Wood Thickness
- 19 (0.75)
- A mm(in.)
- 350 x 300 (13.78 x 11.81) Qty 2
- B mm(in.)
- 350 x 212 (13.78 x 9.84) Qty 2
- C mm(in.)
- 262 x 212 (11.81 x 9.84) Qty 2
Box Tech Data - Sealed Compact
| Box Tech Data - Sealed Compact | |
|---|---|
| Vb l(cu.ft.) | 17 (0.6) |
| Fb Hz | 49 |
| Qtc | 0,89 |
| W mm(in.) | 350 (13.78) |
| H mm(in.) | 300 (11.81) |
| D mm(in.) | 250 (9.84) |
| Mounting Hole - M | 235 (9.25) |
| Wood Thickness | 19 (0.75) |
Panels Cut List - Sealed Compact
| Panels Cut List - Sealed Compact | ||
|---|---|---|
| A mm(in.) | 350 x 300 (13.78 x 11.81) | Qty 2 |
| B mm(in.) | 350 x 212 (13.78 x 9.84) | Qty 2 |
| C mm(in.) | 262 x 212 (11.81 x 9.84) | Qty 2 |
Sealed - Performance
Suggested for a tight yet solid audiophile bass. Use of subsonic filter is advisable for clean reproduction in the lower range (10Hz – 24 dB Oct.)
- Vb l(cu.ft.)
- 25 (0.88)
- Fb Hz
- 42,5
- Qtc
- 0,80
- W mm(in.)
- 400 (15.75)
- H mm(in.)
- 350 (13.78)
- D mm(in.)
- 260 (10.24)
- Mounting Hole - M
- 235 (9.25)
- Wood Thickness
- 19 (0.75)
- A mm(in.)
- 400 x 350 (15.75 x 13.78) Qty 2
- B mm(in.)
- 400 x 222 (15.75 x 10.24) Qty 2
- C mm(in.)
- 312 x 222 (13.78 x 10.24) Qty 2
Box Tech Data - Sealed Performance
| Box Tech Data - Sealed Performance | |
|---|---|
| Vb l(cu.ft.) | 25 (0.88) |
| Fb Hz | 42,5 |
| Qtc | 0,80 |
| W mm(in.) | 400 (15.75) |
| H mm(in.) | 350 (13.78) |
| D mm(in.) | 260 (10.24) |
| Mounting Hole - M | 235 (9.25) |
| Wood Thickness | 19 (0.75) |
Panels Cut List - Sealed Performance
| Panels Cut List - Sealed Performance | ||
|---|---|---|
| A mm(in.) | 400 x 350 (15.75 x 13.78) | Qty 2 |
| B mm(in.) | 400 x 222 (15.75 x 10.24) | Qty 2 |
| C mm(in.) | 312 x 222 (13.78 x 10.24) | Qty 2 |
Support
Awards / Press
ML 2500.3 LEGEND
Award 2
La leggenda continua 2016-08-09
Accessories
Grille
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