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Hertz Mille Pro MP 70.3 3" (8cm) Midrange Speaker

Technical 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.
  • More technical details
Normal price €139,00
Normal price €139,00 Selling price €139,00
5% discount with prepayment
inkl. VAT , possibly plus shipping
Delivery
Mar 24, - Mar 27,
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Mille Pro MP 70.3 by Hertz

Hertz's 3-inch midrange driver, the Mille Pro MP 70.3, is equipped with a powerful neodymium dual magnet inside the voice coil, delivering captivating midrange tones and offering strong dynamics thanks to the 20-mm coil. Special features include the V-cone® profile, which enables optimal lateral dispersion, and the Boundary Free Surround for extending into the lower frequency range. Also notable are the symmetry of the dual neodymium magnet structure and the Exponential V cone, which provide a wide frequency response and highest linearity.

Technical Data

  • Size mm 70
  • Power Handling - Peak W 100
  • Power Handling - Peak Note (High-pass filter @250Hz - 12 dB/oct.)
  • Impedance Ohm 4
  • Voice 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
  • Magnet Neodymium
  • Cone Pressed paper 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
  • Le 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

  • Vibration-damping rubber magnet cover to reduce unwanted vibrations, removable for installations with limited mounting depth.
  • Acoustically transparent aluminum alloy basket with elegant diamond cut and aluminum Hertz logo.
  • Full-protection metal grille with the aluminum Hertz logo and an attractive appearance, a mineral powder-coated inner grille is included for multiple installation combinations.
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    Hertz Mille Pro MP 70.3 Datasheet

    Frequently Asked Questions about Mille Pro MP 70.3


    What are the main technical features of the Mille Pro MP 70.3 speaker?

    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 extended bass midrange frequency. Its exponential V-cone made of pressed cellulose combines stiffness and lightweight construction, ensuring a wide frequency response and maximum linearity.

    What does the frequency response of the Hertz Mille Pro MP 70.3 look like?

    The frequency response of the Mille Pro MP 70.3 ranges from 180 Hz to 18 kHz. This wide spectrum allows it to reproduce midrange and high frequencies accurately. The exponential V-cone 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.

    What is the significance of the V-cone® profile in the Mille Pro MP 70.3 speaker?

    The V-cone® profile from Hertz is a vital technological innovation of the Mille Pro MP 70.3 midrange driver. It consists of a membrane made of 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 performances.

    What advantages does the dual neodymium magnet structure offer in the Mille Pro MP 70.3?

    The dual neodymium magnet structure of the Mille Pro MP 70.3 offers numerous advantages, including stronger magnetic force compared to conventional magnetic materials. Developed with FEM simulations, it ensures outstanding dynamics and precise control. This technology enhances the performance of the speaker 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.

    How does the voice coil of the Mille Pro MP 70.3 affect sound quality?

    The 20 mm CCAW dual-layer voice coil of the Mille Pro MP 70.3 from 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.

    How easy is it to install the Mille Pro MP 70.3 in various audio systems?

    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 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 across different vehicle types, making installation easier in both cars and home theater systems.

    What role does the acoustically transparent aluminum basket of the Mille Pro MP 70.3 play?

    The acoustically transparent aluminum alloy basket of the Mille Pro MP 70.3 has several significances. This design allows for unrestricted sound propagation and reduces enclosure interference. The aluminum basket is also robust and lightweight, enhancing the structural integrity of the speaker and minimizing vibrations. The elegant diamond cut and the embedded Hertz logo provide an aesthetically pleasing appearance, emphasizing the high-quality nature of the product. An additional advantage is protection against dust and mechanical damage.

    How does the V-cone® profile affect the radiation behavior of the Mille Pro MP 70.3?

    The V-cone® profile of the Mille Pro MP 70.3 speaker significantly contributes to improving the radiation behavior. It optimizes sound distribution, allowing frequencies to 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 in conjunction with the 'Boundary Free' surround to enhance tonal consistency and precision, creating an immersive listening experience that meets even the most demanding audiophile requirements.

    What specific materials are used for the diaphragm of the Mille Pro MP 70.3 and why?

    The diaphragm of the Mille Pro MP 70.3 is made from pressed pulp reinforced with cotton fibers. This material choice offers an excellent balance between stiffness and lightness, which in turn enables optimal frequency response and high sound linearity. Cotton fibers increase structural strength, while the pulp maintains a certain flexibility necessary for dynamic sound reproduction. This combination allows the diaphragm to respond precisely to different frequency ranges, significantly improving overall sound quality and making the speaker ideal for highly detailed musical playback.

    What accents does the Mille Pro MP 70.3 speaker set in terms of design and functionality?

    The Mille Pro MP 70.3 from Hertz combines functionality with an appealing design. The speaker features a basket made of aluminum alloy with a diamond cut, enhancing both technical performance and aesthetic appeal. The recessed Hertz logo made of aluminum complements the striking appearance of the speaker. Functionally, the removable metal grille provides protection and versatile installation options, while the rubber magnet cover minimizes disruptive vibrations. This speaker unites technical excellence with high-quality design, ideal for demanding audio applications, whether at home or in the vehicle.

    Manufacturer information / responsible person

    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

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