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Hertz

Mille Pro MP 25.3

dome tweeter

99,00€
99,00€ 99,00€
incl. VAT , possibly plus shipping

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Highlights

  • Power handling 120 W, impedance 4 Ohm, frequency response 1.4k-22.5k Hz.
  • Neodymium magnet, 25mm voice coil, resonance frequency 1200Hz.
  • Tetolon dome, SPL 91 dB, ferrofluid cooling for optimized performance.
Seen more cheaply Personal Offer
brand: Hertz
Delivery time:
Available, in 3-8 days with you
Number:
set
Watt RMS:
60
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The Mille Pro MP 25.3 is an outstanding dome tweeter from Hertz. With its innovative Tetolon dome and 25 mm voice coil, this tweeter delivers a wide, linear frequency response. The unique "Central Tuning Channel" and the powerful neodymium magnet ensure excellent air exchange between the dome and the loading chamber, resulting in optimal acoustics. The result is a very low resonance frequency that significantly improves sound reproduction. Discover the technical details and special features of this tweeter below.

Technical Data

  • Size mm 29
  • Load capacity - Peak W 120
  • Load capacity - Peak Note (High-pass filtered @ 2.5kHz - 12 dB Oct.)
  • Impedance Ohm 4
  • Swinging coil Ø 25 (1)
  • Frequency response Hz 1.4k - 22.5k
  • Magnet size B x T x H mm 24.5 x 6 x 3.5
  • Weight kg 0.07
  • Neodymium Magnet

Physical Specifications

Mille Pro MP 25.3

  • A 44 mm
  • B 41 mm
  • C 27 mm
  • D 17 mm

Electro-Acoustic Specifications

  • D mm 29
  • Re Ohm 3.9
  • Fs Hz 1200
  • The mH 0.02
  • Vas I -
  • Mms g 0.17
  • Cms mm/N 0.1
  • BL T*m 1.6
  • Qts 0.55
  • Qes 1.98
  • Qms 0.57
  • Spl dB 91

Frequency response

Mille Pro MP 25.3

FEATURES

Mille Pro MP 25.3

  • Soft dome made of Tetolon fiber for a natural yet detailed reproduction of musical nuances.
  • "Center Tuning Duct" geometry for lower resonance frequency and reduced harmonic distortions.
  • Neodymium magnet with high density, optimized for maximum control during high-energy dynamic transients in the mid to high frequency range.
  • 25-mm ferrofluid-cooled mobile voice coil.
  • The rear chamber is filled with selected damping material and is designed for lower Fs to ensure a well-damped drop of the high-pass frequency, allowing for a transition point with a low cutoff frequency.
  • Front plate with FEM-optimized geometry (Finite Element Modeling) for high linearity in off-axis installations.
  • Large selection of installation accessories for easy OEM integration.
The Mille Pro MP 25.3 from Hertz offers an exceptionally wide frequency range of 1,400 Hz to 22,500 Hz. This range is evenly covered by the use of a 25 mm voice coil and a Tetolon dome. The tweeter is characterized by its ability to reach low resonance frequencies of up to 1,200 Hz, supported by a neodymium magnet system that ensures high control. Musicians particularly appreciate the Mille Pro MP 25.3's ability to reproduce all nuances in high sound ranges, contributing to a natural and detailed musical reproduction.
The Tetolon dome of the Mille Pro MP 25.3 ensures outstanding sound performance by providing a balanced combination of stiffness and damping. This promotes precise reproduction of musical nuances without producing harsh or distorted sound peaks. The special Tetolon fiber construction supports mid to high frequencies and maximizes the linearity of the frequency response. Additionally, it contributes to the reduction of harmonic distortions, significantly improving sound fidelity. Listeners thus experience a clear and detailed soundstage, ideal for audiophile applications.
The neodymium magnet of the Mille Pro MP 25.3 serves as an essential component for generating a strong magnetic field with minimal weight. This ensures that the movements of the voice coil are fast and precise, which is particularly advantageous in dynamic transients. Thanks to the high density and magnetic strength of neodymium, greater control is achieved in the mid and high frequency range. Additionally, the neodymium magnet contributes to reducing the overall height of the tweeter, facilitating integration into various vehicle designs and leading to efficient energy conversion.
The 'Center Tuning Duct' in the Mille Pro MP 25.3 is an innovative geometric solution that reduces the resonance frequencies in the tweeter. This technology achieves an even sound distribution and minimizes harmonic distortions. Particularly in high-frequency applications, the 'Center Tuning Duct' allows for clearer and more precise sound reproduction by effectively regulating air pressure. This ensures that the tweeter can reproduce clear highs even in complex musical passages, resulting in a significantly improved listening experience.
The 25 mm voice coil of the Mille Pro MP 25.3 plays a central role in sound reproduction. It is responsible for the precise conversion of electrical signal impulses into mechanical movements that set the dome in motion. The size of the voice coil directly affects the thermal load capacity and the ability to handle high power peaks. With a frequency response extending up to 22,500 Hz and a controlled impedance of 4 ohms, the voice coil ensures undistorted sound even at high volumes. The use of ferrofluid for cooling increases the longevity and efficiency of the tweeter.
The Mille Pro MP 25.3 is designed to handle a peak load of 120 watts, which is impressive for a tweeter of this class. This capability is supported by a sophisticated high-pass filtering at 2.5 kHz with a slope of 12 dB/octave. This technical arrangement ensures that the tweeter delivers a clear and undistorted sound even at high music volumes. The exceptional durability is also due to the efficient heat management of the 25 mm voice coil and the use of high-density neodymium in the magnetic system.
The installation of the Mille Pro MP 25.3 in the vehicle is relatively simple thanks to the front plate with FEM-optimized geometry, which offers high linearity in off-axis installations. The physical specifications, with a size of 29 mm and a weight of 0.07 kg, make it a lightweight and compact tweeter. It can therefore be easily integrated into most vehicle installations, including OEM applications. The adaptability of the design ensures that the tweeter is optimally positioned in the car to guarantee the highest sound performance.
The Mille Pro MP 25.3 from Hertz is designed with an impedance of 4 Ohms, providing an ideal balance between sound quality and power consumption. The Re value is 3.9 Ohms, ensuring minimal losses in signal transmission while also protecting the amplifier. This impedance level allows for broad compatibility with various amplifier systems. The electro-acoustic specifications, such as a total Q value (Qts) of 0.55 and specific losses (Qes) of 1.98, contribute to an optimized sound behavior of the tweeter by minimizing harmonic distortions.
The damping material in the rear chamber of the Mille Pro MP 25.3 has a decisive influence on sound performance. It is responsible for the well-damped transition of the high-pass frequency, resulting in a low cutoff frequency. The specific damping reduces unwanted resonances and noise that could arise from rear sound reflections. This acoustic optimization significantly improves sound quality by ensuring a clean frequency drop, which is particularly beneficial in critical analysis environments and in audiophile applications.
The Mille Pro MP 25.3 is characterized by specific Thiele-Small parameters that define its electro-acoustic performance. These parameters include a total Q factor (Qts) of 0.55, an electrical Q factor (Qes) of 1.98, and a mechanical Q factor (Qms) of 0.57. The mechanical compliance value (Cms) is 0.1 mm/N, which contributes to controlling the oscillation movements of the dome. The Bl value of 1.6 T*m indicates the electromagnetic driving force of the voice coil. These parameters are crucial for tuning to different acoustic environments and ensure that the tweeter operates accurately and without distortion.

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

Hertz

Product type

Dome tweeter

Features

  • Highlights

    • Power handling 120 W, impedance 4 Ohm, frequency response 1.4k-22.5k Hz.
    • Neodymium magnet, 25mm voice coil, resonance frequency 1200Hz.
    • Tetolon dome, SPL 91 dB, ferrofluid cooling for optimized performance.

  • Uvp

    103

weight

0.5 kg

Technical data

Watt RMS Load Capacity

60

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Your advantages with Masori

Mille Pro MP 25.3 by Hertz: Buy innovative dome tweeter online at a great price

When you purchase the Mille Pro MP 25.3 from Hertz, you benefit from a range of technical highlights that will delight sound enthusiasts. With its Tetolon dome, the tweeter offers a wide and linear frequency response from 1.4 kHz to 22.5 kHz. The combination of a 25 mm voice coil and neodymium magnet ensures excellent dynamic transients. With an impedance of 4 ohms and a maximum power handling of 120 W (peak) with a high-pass filter @ 2.5 kHz - 12 dB Oct., it meets the highest demands. A central tuning channel feature optimizes the resonance frequency to just 1200 Hz. Furthermore, the Masori Lowest Price Guarantee ensures that you can buy the tweeter at the best price online.

Tetolon dome for natural sound reproduction with the Hertz tweeter

The Mille Pro MP 25.3 utilizes a soft Tetolon dome, known for its ability to reproduce musical nuances with detail and naturalness. This material selection results in low internal damping and high rigidity, reducing distortion and ensuring a precise soundstage. This property enables clean reproduction of critical frequencies, which is particularly beneficial for complex music. Compared to conventional textile domes, Tetolon offers an outstanding balance between detail and musicality.

Excellent frequency response and low resonance frequency due to Center Tuning Duct

With a frequency response of 1.4kHz to 22.5kHz, this Hertz tweeter covers an impressive range. Thanks to the center tuning duct geometry, the resonance frequency is effectively lowered to 1200Hz, minimizing harmonic distortion. This technical feature enables a particularly smooth transition to the midrange drivers, making the overall sound in the car more harmonious. A lower Fs value is an indicator of the tweeter's ability to reach deeper into the frequency range, which is a particular requirement in car hi-fi applications, where air in the soundstage is often welcome.

High-quality neodymium magnet structure for maximum control

The neodymium magnet used in the Mille Pro MP 25.3 is known for its high density and ability to control high energies during dynamic transients. With dimensions of 24.5 x 6 x 3.5 mm and a force factor (BL) of 1.6 T*m, it enables efficient control of the driver. A stronger magnet could increase sensitivity, but the precise design of this tweeter makes it ideal for dynamic and energetic musical passages, as is often required in automotive applications.

25 mm ferrofluid-cooled voice coil for thermal stability

The 25 mm voice coil of the Mille Pro MP 25.3 is cooled with ferrofluid, which improves thermal stability and longevity. This technology allows for higher power consumption over longer operating times before thermal compression sets in. This is particularly useful in car hi-fi systems, as the acoustics in the vehicle are subject to immediate thermal stress. Ferrofluid also offers the advantage of additional damping, further optimizing control over the oscillation process.

Hertz Mille Pro MP 25.3: Optimal air exchange for acoustic precision

The central tuning channel of the Mille Pro MP 25.3 acts as a kind of airlock, optimizing air exchange between the dome and the loading chamber, thus promoting acoustic precision. This design ensures fine damping and results in a clear and undistorted sound. If this air exchange is less effective, unwanted resonances could occur, negatively affecting the sound. Compared to conventional techniques, the central tuning channel offers significant advantages in terms of detail.

Optimized front panel for improved off-axis installations in the car

The FEM (finite element modeling) optimized front panel of the Mille Pro MP 25.3 is specifically designed to ensure high linearity, even in off-axis installations in the vehicle. This optimization helps maintain a harmonious and balanced soundstage even when speakers are not directly aimed at the listener. This feature is crucial for achieving the best possible sound dispersion and clarity in the dynamic environment of a car, without sacrificing detailed sound experiences.

Easy integration and comprehensive accessories for Mille Pro MP 25.3

The Mille Pro MP 25.3 from Hertz comes with a wide range of installation accessories, making integration into OEM systems effortless. These accessories allow the tweeter to be integrated discreetly and flexibly into the vehicle interior. This adaptability facilitates installation in different vehicle models and allows for adjustment of the tweeter orientation to achieve the ideal sweet spot. Easier installation could facilitate access to custom solutions for high-end audio scenarios. For further support or if you need technical assistance, you can book on-site installation in Frankfurt (Oder) . You can also benefit from our extensive expert support, FAQs & Help , or visit our Audio Blog for more innovative car hi-fi news and trends.