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Hertz

Mille Pro MP 70.3

3" (8cm) midrange driver

Normal price 139,00€
Normal price 139,00€ selling price 139,00€
incl. VAT , possibly plus shipping

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Highlights

  • 20 mm coil, 4 ohm impedance, frequency response 180-18k Hz.
  • Neodymium magnet, V-cone® profile, boundary free surround.
  • Exponential V-diaphragm, high linearity, wide frequency response.
Seen more cheaply Personal Offer
brand: Hertz
Delivery time:
Available, in 3-8 days with you
Number:
set
Watt RMS:
50
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Normal price 139,00€
Normal price 139,00€ selling price 139,00€

Hertz's 3" (8cm) midrange driver, the Mille Pro MP 70.3, comes equipped with a strong neodymium double magnet inside the coil, delivering powerful midrange tones and featuring a robust dynamics thanks to the 20mm coil. Special features include the V-cone® profile, which allows for optimal lateral radiation behavior, and the Boundary Free Surround for an extension into the lower frequency range. Also noteworthy are the symmetry of the dual neodymium magnet structure and the exponential V-membrane, which provide a wide frequency response and highest linearity.

Technical Data

  • Size mm 70
  • Load capacity - Peak W 100
  • Load Capacity - Peak Note (High-pass filter @250Hz - 12 dB Oct.)
  • Impedance Ohm 4
  • Swinging coil Ø 20
  • Frequency response Hz 180 - 18k
  • Magnet size B x T x H mm 19.7 x 0 x 2
  • Weight kg 0.17
  • Neodymium Magnet
  • Membrane press pulp cone with cotton fibers

Physical Specifications

Mille Pro MP 70.3

  • A 87.8 mm
  • B 73 mm
  • C 50 mm
  • D 44 mm
  • E 93 mm
  • F 17 mm

Electro-Acoustic Specifications

  • D mm 65
  • Re Ohm 3.7
  • Fs Hz 110
  • The mH 0.12
  • Vas I 1
  • Mms g 2.9
  • Cms mm/N 0.7
  • BL T*m 2.8
  • Qts 0.82
  • Qes 1
  • Qms 4,6
  • Spl dB 88

Frequency response

Mille Pro MP 70.3

FEATURES

Mille Pro MP 70.3

  • Symmetrical dual neodymium magnet structure specifically developed with FEM simulations (Finite Element Modeling) to ensure superior dynamics and control.
  • 20 mm CCAW double-layer voice coil, wound on a polyamide carrier with 8 decompression holes, for exceptional durability and compression-free reproduction.
  • Exponential V-Membrane Profile® made of pressed cellulose with cotton fibers, combines stiffness and lightness for a wide frequency response. Geometrically optimized membrane profile for highest linearity and radiation behavior in the mid to high frequency range.
  • "Boundary Free" rubber seal for better efficiency and wider mid-bass frequency.
  • Vibration-damping rubber magnet cover for damping disruptive vibrations, removable for installations with limited mounting depth.
  • Acoustically transparent basket made of aluminum alloy with elegant diamond cut and Hertz logo made of aluminum.
  • Full protection metal grid with the Hertz logo made of aluminum and an attractive appearance, a mineral powder-coated inner grill is included for multiple installation combinations.
The Mille Pro MP 70.3 from Hertz is a 3" midrange driver equipped with a dual neodymium magnet structure. This allows for superior dynamics. It features a 20 mm CCAW dual-layer voice coil on a polyamide carrier, ensuring high load capacity. The V-cone® profile provides improved lateral radiation behavior, while the Boundary Free Surround offers an extended bass midrange frequency. Its exponential V-membrane made of pressed cellulose combines stiffness and lightweight construction, ensuring a wide frequency response and highest linearity.
The frequency response of the Mille Pro MP 70.3 ranges from 180 Hz to 18 kHz. This wide spectrum allows it to reproduce midtones and high frequencies accurately. The exponential V-membrane profile is particularly responsible for this linearity in the frequency response, while the V-cone® profile optimizes the radiation behavior. The rubber surround with 'Boundary Free' technology also supports efficiency across these frequency ranges. This combination of technologies ensures that the speaker reproduces every nuance of the music accurately.
The V-Membrane Profile® from Hertz is a vital technological innovation of the Mille Pro MP 70.3 midrange driver. It consists of a membrane made from pressed cellulose, reinforced with cotton fibers, which guarantees both stiffness and lightness. This construction allows for an extended frequency response and contributes to excellent linearity. The structured shape of the membrane optimizes the radiation behavior in the mid to high frequency range, ensuring remarkable sound detail fidelity, ideal for demanding musical representations.
The dual neodymium magnet structure of the Mille Pro MP 70.3 offers numerous advantages, including a stronger magnetic force compared to conventional magnetic materials. Developed with FEM simulations, it ensures outstanding dynamics and precise control. This technology enhances the speaker's performance by increasing accuracy and efficiency, especially at higher volumes, without distortion. The result is a midrange driver that creates excellent acoustic experiences despite its compact size, even in demanding audio environments.
The 20 mm CCAW dual-layer voice coil of the Mille Pro MP 70.3 by Hertz is mounted on a polyamide carrier, which significantly influences sound quality. This construction allows for exceptional thermal resilience while greatly reducing compression effects. The voice coil offers high efficiency in converting electrical signals into acoustic output, ensuring that even the finest musical details are preserved. The 8 decompression holes in the polyamide carrier also help reduce mechanical resonances, resulting in a clean, clear sound image.
The installation of the Mille Pro MP 70.3 is relatively straightforward due to its compact design. With a diameter of 70 mm and a total weight of only 0.17 kg, it fits easily into various audio systems. The removable rubber magnet cover minimizes the installation depth, which is advantageous when space is limited. Additionally, extensive mounting options are possible with the included protective grille. The physical dimensions A 87.8 mm, B 73 mm, C 50 mm, and D 44 mm provide flexibility in positioning in different vehicle types, making installation easier in both cars and home theater systems.
The acoustically transparent basket made of aluminum alloy of the Mille Pro MP 70.3 has several meanings. This design allows for unrestricted sound propagation and reduces enclosure interference. The aluminum basket is also robust and lightweight, which improves the structural integrity of the speaker and minimizes vibrations. An aesthetically pleasing appearance is provided by the elegant diamond cut and the embedded Hertz logo, which not only looks aesthetic but also emphasizes the high-quality character of the product. An additional advantage is the protection against dust and mechanical damage.
The V-cone® profile of the Mille Pro MP 70.3 speaker significantly contributes to improving the radiation behavior. It optimizes sound distribution so that frequencies can be heard more evenly and clearly over a wider angle. This is particularly important in an environment where listeners are not positioned directly in the center of the sound field. The structure of the V-cone® profile works together with the 'Boundary Free' surround to enhance tonal consistency and precision, thereby creating an immersive listening experience that meets even the most demanding audiophile requirements.
The membrane of the Mille Pro MP 70.3 is made from pressed cellulose that is reinforced with cotton fibers. This choice of material provides an excellent balance between stiffness and lightness, which in turn allows for optimal frequency response and high sound linearity. Cotton fibers increase structural strength, while the cellulose maintains a certain flexibility that is necessary for dynamic sound reproduction. This combination enables the membrane to respond precisely to different frequency ranges, significantly improving overall sound quality and making the speaker well-suited for highly detailed musical playback.
The Mille Pro MP 70.3 from Hertz combines functionality with an appealing design. The speaker is equipped with a basket made of aluminum alloy with diamond cut, which enhances both technical performance and aesthetic appeal. The recessed Hertz logo made of aluminum complements the striking appearance of the speaker. In terms of functionality, the removable metal grille provides protection and versatile installation options, while the rubber magnet cover minimizes disturbing vibrations. This speaker unites technical excellence with high-quality design, ideal for demanding audio applications, whether at home or in the vehicle.

Elettromedia SpA
62018 Potenza Picena (MC)
Strada Regina km 3,500
Italy

Contact person:
Simone Iampieri
Executive Director Assistant
T +39 0733 870 813
Elettromedia SpA
62018 Potenza Picena (MC) Italy
Strada Regina km 3,500
T + 39 0733 870 870

Contact: simone.iampieri@elettromedia.it

Product Specifications


Manufacturer

Features


  • Highlights

    • 20 mm coil, 4 ohm impedance, frequency response 180-18k Hz.
    • Neodymium magnet, V-cone® profile, boundary free surround.
    • Exponential V-diaphragm, high linearity, wide frequency response.
  • Uvp

    148

weight

0.17 kg

Technical data


Watt RMS Load Capacity

50

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Your advantages with Masori


Powerful dynamics with 20 mm voice coil and neodymium magnet

The Hertz Mille Pro MP 70.3 midrange driver delivers impressive performance thanks to a 20 mm CCAW dual-layer voice coil wound on a polyamide core, equipped with eight decompression holes. This construction maximizes power handling and enables compression-free reproduction, ideal for detailed sound reproduction in your vehicle. The neodymium dual magnet inside the coil produces powerful midrange frequencies and, thanks to precise FEM (finite element modeling) simulation, ensures superior dynamics and control. The combination of the strong magnetic force and the optimally designed voice coil ensures that the Hertz midrange driver delivers clear and distortion-free sound reproduction even at high volumes, making it a perfect choice for any car hi-fi solution where high power reserves are required.

V-cone® profile for improved radiation characteristics

The innovative V-cone® profile of the Hertz 3 Mille Pro MP 70.3 midrange driver enables optimal lateral dispersion. This design ensures that the sound is evenly distributed over a wide area, which is particularly beneficial in vehicles with suboptimal acoustics. This broadens the soundstage and enlarges the sweet spot in the interior. Thanks to this feature, the midrange driver is particularly suitable for installations where even sound distribution throughout the entire vehicle interior is desired. Such an extended dispersion pattern makes a difference in the soundstage, allowing all passengers to enjoy a realistic sound image.

Broadband frequency response from 180 Hz to 18 kHz

One of the outstanding advantages of the Hertz Mille Pro MP 70.3 midrange driver is its impressive frequency response of 180 Hz to 18 kHz. This wide frequency coverage allows the midrange driver to reproduce both low and high frequency ranges, making it extremely flexible. This is perfect for systems that cannot accommodate separate tweeters or larger woofers. A lower frequency response could result in a loss of bass punch, while a higher one could reduce the detail in the high frequencies. This wide frequency range ensures a balanced sound image and high sound precision, ideal for a wide variety of music styles.

Hertz quality through geometrically optimized membrane profile

The midrange driver's exponential V-Cone Profile® combines lightness and rigidity through pressed cellulose with cotton fibers. This unique combination contributes significantly to an extended and accurate frequency response, while the geometrically optimized cone profile provides maximum linearity and excellent dispersion in the mid- to high-frequency spectrum. A smaller or non-optimized cone could compromise linearity, resulting in unwanted coloration. Hertz's innovative approach guarantees a consistently high sound standard, which is what sets this speaker apart.

Boundary Free Surround extends the frequency range and efficiency

The Hertz Mille Pro MP 70.3's Boundary Free rubber surround extends the bass-mid frequencies and improves the speaker's efficiency. This innovation achieves a larger diaphragm surface, which has the ability to penetrate deeper into the frequency range, resulting in a richer and fuller sound reproduction. This property is crucial for achieving natural and seamless mid-frequency reproduction throughout the entire system, which would be less effective with a smaller surround. The Hertz solution thus delivers an optimized sound experience while simultaneously increasing the speaker's performance.

Acoustically transparent aluminum basket for maximum sound purity

The Hertz Mille Pro MP 70.3 midrange driver is housed in an acoustically transparent aluminum alloy basket. This design minimizes internal resonances and prevents unwanted vibrations that could distort the sound. The basket also features an elegant diamond cut and the Hertz logo, which not only adds visual appeal but also contributes to mechanical strength. Using other materials could result in unwanted resonance frequencies that would negatively impact the sound. Therefore, this high-quality basket ensures clean and unadulterated sound reproduction.

Finest compression reduction through decompression-hole voice coil

The voice coil of the Hertz Mille Pro MP 70.3 is equipped with eight decompression holes that help reduce compression effects. This technology allows for efficient dissipation of the heat generated at high volume levels while optimally utilizing the magnetic damping of the neodymium magnet. The absence of this design would limit the performance of the midrange driver and lead to increased distortion at higher volumes. The thoughtful design of this speaker guarantees outstanding reliability and long-lasting performance, even under demanding operating conditions.

Application-specific optimization with geometric membrane profile

The geometrically optimized diaphragm profile combined with the symmetrical dual neodymium magnet structure ensures maximum linearity and superior system dynamics. The targeted arrangement of the magnets and the profiled diaphragm promotes precise sound reproduction, which is essential for captivating sonic highlights. This professional optimization is essential to ensure authentic sound reproduction without loss of dynamics or detail. Without these features, a significant wealth of sound detail would often be lost in sophisticated car hi-fi systems.

Installation options and accessories with high-quality design

The Hertz Mille Pro MP 70.3 offers a wide range of installation options, supported by its removable, vibration-damping rubber magnet cover, which effectively suppresses vibrations. The metal-inlaid grille construction with a mineral powder-coated interior grille not only expands the visual installation options but also effectively protects against mechanical damage. These accessories make the speaker a versatile choice, combining design and functionality under one roof. Without these quality components, visible installation limitations and reduced protection could occur. Visit the team on-site in Frankfurt (Oder) for on-site installation or learn more about our expert support FAQ & Help . Discover more in our audio blog .