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Hertz

Mille Pro MP 250 D2.3 / D4.3

10" (25cm) Subwoofer

299,00€
299,00€ 299,00€
incl. VAT , possibly plus shipping

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Highlights

  • Power consumption 600 W RMS and 1200 W peak, impedance 2+2/4+4 Ohm.
  • 65 mm voice coil with 4 layers CCAW, for high performance.
  • Aluminum non-resonant basket, optimized for low wiring resistance.
Impedance: D2 (2x2 Ohm)
Seen more cheaply Personal Offer
brand: Hertz
Delivery time:
Available, in 3-8 days with you
Number:
Piece
Watt RMS:
600
Subwoofer Type:
ferrite
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Hertz-Mille Pro MP 250 D2.3 / D4.3-10" (25cm) Subwoofer-masori-kaufen
299,00€
299,00€ 299,00€

Discover the Mille Pro MP 250 D2.3 / D4.3, a 10" (25cm) subwoofer from the renowned manufacturer Hertz. This further development of the successful Mille Legend is an outstanding example of compact size and high performance. A highlight is the special manufacturing of the speaker membrane, using the same process as in the Legend series. The subwoofer offers thoughtful technologies and materials, such as the Boundary Free Surround technology for higher sound pressure and a particularly robust aluminum non-resonance basket construction. The Mille Pro is therefore the perfect companion if you want to experience the Hertz sound in your car.

Technical Data

  • Size mm 250
  • Load capacity - RMS W 600
  • Load capacity - Peak value W 1200
  • Impedance Ohm 2+2 / 4+4
  • Oscillating coil Ø 65 (2.56)
  • Magnet size B x T x H mm 165 x 75 x 35
  • Weight kg 8.2
  • High-density flux ferrite magnet
  • Membrane Pressed Pulp Cone with Mineral Powders
  • Xmech mm ±27

Physical Specifications

Mille Pro MP 250 D2.3 / D4.3

  • A 268 mm
  • B 236 mm
  • C 160 mm
  • D 141 mm
  • E 274 mm
  • F 58.5 mm

Electro-Acoustic Specifications

  • D mm 213
  • Xmax mm 17.00
  • Re Ohm 0.85
  • Fs Hz 30.00
  • The mH 0.65
  • Vas I 25.00
  • Mms g 182.00
  • Cms mm/N 0.14
  • BL T*m 7,1
  • Qts 0.54
  • Qes 0.6
  • Qms 5.92
  • Spl dB 83.5

housing

Closed

Mille Pro MP 250 D2.3 / D4.3

Housing data - Closed

  • Vb l(cu.ft.) 17 (0.60)
  • Fb Hz 50
  • Qtc 0.85
  • B mm 450
  • H mm 350
  • T mm 190
  • Montageloch - M 236
  • Wood thickness 19

Sheet Cutting List - Sealed Box

  • A mm 450 X 350 Quantity 2
  • B mm 450 x 152 Quantity 2
  • C mm 312 x 152 Quantity 2

Reflex Box

Mille Pro MP 250 D2.3 / D4.3

Mille Pro MP 250 D2.3 / D4.3

Technical Data of the Box - Reflex Box

  • Vb l(cu.ft.) 22 (0.78)
  • Fb Hz 38
  • Qtc -
  • B mm 534
  • H mm 330
  • T mm 276
  • Mounting hole - 236
  • Wood thickness 19

Sheet Cutting List - Reflex Box

  • A mm 534 x 330 quantity 2
  • B mm 534 x 238 Quantity 2
  • C mm 292 x 238 Quantity 2

Features

Mille Pro MP 250 D2.3 / D4.3

  • Ergonomic, compact design, specifically developed for closed enclosures from 17 l volume.
  • CCAW, 65 mm (2.5") 4-layer voice coil that can handle 1200 W of musical power. The 2 Ω + 2 Ω DVC impedance configuration enhances versatility and fits any amplifier system.
  • The voice coil is wound on TIL-P material and has ventilation holes behind the winding. This combines efficient heat dissipation with a high Qms factor (low mechanical loss) for a bursting dynamic sound.
  • Exponential V-cone® with optimized geometry for high cone stiffness and strong resistance to deformation even at maximum deflections.
  • Boundary Free IIR rubber edge, for higher SPL performance while maintaining the same outer diameter.
  • Mineral-infused paper membrane, for outstanding stiffness and damping.
  • Extremely acoustically transparent, low-resonance basket made of an aluminum alloy with six spokes and integrated ventilation holes under the spider.
  • CNC-milled, elegant, diamond-cut rim with Hertz logo.
  • Terminal block for cables up to 8 AWG to ensure an extremely low wiring resistance in low-resistance configurations. A plastic cover prevents accidental short circuits.
  • Possibility to mount the subwoofer on the speaker wall while fully utilizing its minimal dimensions.
  • Powerful, compact motor with an excellent magnetic field that is transferred to the coil.
The Mille Pro MP 250 D2.3/D4.3 from Hertz is a compact 10" subwoofer with several remarkable technical features. It offers an RMS power of 600 W and a peak value of 1200 W. The speaker membrane is made from pressed pulp with mineral powders, which ensures high stiffness and good damping. The subwoofer utilizes Boundary Free Surround technology, which allows for higher SPL at the same size. The voice coil has a diameter of 65 mm with a 4-layer construction. The subwoofer has an impedance of 2+2/4+4 Ohms, allowing for versatile adaptation to amplifier systems.
The Boundary Free Surround technology of the Mille Pro MP 250 D2.3/D4.3 allows for a higher sound pressure level (SPL) without increasing the outer diameter of the subwoofer. This technique maximizes the usable diaphragm area, ensuring that the subwoofer remains powerful despite its compact dimensions. Ideal for applications where both space requirements and acoustic performance are critical, this technology offers more effective bass reproduction with improved linearity. For this reason, the subwoofer is particularly suitable for closed enclosures, where a strong, clear bass is essential.
The Hertz Mille Pro MP 250 D2.3/D4.3 subwoofer is suitable for installation in closed enclosures with a volume of at least 17 liters. The geometric dimensions are 268 mm (A) in diameter, 236 mm (B) in the mounting hole, 160 mm (C) in depth, and 141 mm (D) in installation. The minimum enclosure size allows for integration into various vehicle types, with proper mounting being important to reduce resonances. The aluminum construction provides stability and minimizes unwanted vibrations.
The Mille Pro MP 250 D2.3/D4.3 offers impedance configurations of 2+2 or 4+4 ohms. This Dual Voice-Coil (DVC) configuration allows you to flexibly adapt the wiring to your amplifier requirements, achieving either a low impedance for maximum amplifier power or higher impedances for networked systems. This makes the subwoofer versatile for various setups that can be connected both in parallel and in series to meet your needs.
The voice coil of the Mille Pro MP 250 D2.3/D4.3 is a 4-layer, 65 mm CCAW (Copper Coated Aluminum) coil designed to handle power levels of up to 1200 W. The voice coil uses a TIL-P material that is equipped with ventilation holes behind the winding to ensure effective heat dissipation. This ensures high thermal stability and prevents power loss under heavy load. The impedance of 2 Ω + 2 Ω DVC configuration promotes versatility regarding amplifier settings.
The electro-acoustic parameters of the Mille Pro MP 250 D2.3/D4.3 are crucial for its sound character. With a resonance frequency (Fs) of 30 Hz and an equivalent volume Vas of 25 liters, the subwoofer delivers deep, powerful bass. The mechanical quality factor (Qms) of 5.92 and the electrical quality factor (Qes) of 0.6 result in a total quality factor (Qts) of 0.54, indicating a balanced bass reproduction. The Exponential V-cone® geometry ensures high stiffness and resonance freedom, guaranteeing rich and precise bass reproduction.
The enclosure configuration has a decisive influence on the performance of the Mille Pro MP 250 D2.3/D4.3 subwoofer. In a closed enclosure of 17 liters, the subwoofer can produce precise and deep-sounding bass. In a reflex box with 22 liters, the low-frequency performance improves even more, as air vibrations are amplified, and the Helmholtz resonance at 38 Hz provides a deep bass boost. A BA cabinet helps to optimize bass reproduction and ensure that the sound quality and efficiency of the subwoofer are fully utilized.
The Mille Pro MP 250 D2.3/D4.3 subwoofer utilizes a variety of high-quality materials. The diaphragm is made of pressed pulp with embedded mineral powders for exceptional stiffness and damping. The basket made of an aluminum alloy is low-resonance and features a six-spoke design with ventilation holes under the spider, ideal for good airflow and enhancing the dynamic range. The subwoofer also includes a CNC-machined, sleek, diamond-cut basket edge with the Hertz logo, which not only contributes to acoustic improvement but also serves as an aesthetic design feature.
The Mille Pro MP 250 D2.3/D4.3 is not specifically designed for a particular car brand, but its compact design facilitates integration into a variety of vehicles. The physical dimensions and ergonomic design allow for integration into many trunk sizes, supporting universal compatibility. The installation instructions and enclosure dimensions help to install it correctly. However, check the dimensions of your car compartment before installation to ensure that there is enough space for the enclosure volume and the subwoofer dimensions.
The Mille Pro MP 250 D2.3/D4.3 offers flexible mounting options. The subwoofer can be mounted in a box wall, fully utilizing the minimal enclosure dimensions. A standardized terminal block allows for the connection of cables up to 8 AWG, maintaining a low wiring resistance in low-impedance configurations. A plastic cover protects against short circuits. This flexibility ensures that the subwoofer can be optimally positioned in the vehicle both acoustically and physically to maximize bass performance and safety.

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

10" (25cm) subwoofer

Features

  • Highlights

    • Power consumption 600 W RMS and 1200 W peak, impedance 2+2/4+4 Ohm.
    • 65 mm voice coil with 4 layers CCAW, for high performance.
    • Aluminum non-resonant basket, optimized for low wiring resistance.

  • Uvp

    320

weight

8.2 kg

Technical data

Watt RMS Load Capacity

600

configurators

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Your advantages with Masori

Mille Pro MP 250 D2.3 / D4.3 from Hertz: Compact 10 subwoofer for high performance

Discover the powerful Hertz Mille Pro MP 250 D2.3 / D4.3 subwoofer, the ideal companion for your car hi-fi system. With an RMS power handling of 600 W and a peak power of 1200 W, this subwoofer delivers impressive sound pressure for every musical challenge. The dual impedance option of 2+2 ohms and 4+4 ohms increases the versatility of integration into existing amplifier configurations. Despite its compact size of 250 mm, the Mille Pro makes a powerful acoustic impression. Boundary Free Surround technology ensures even greater sound pressure. Benefit from the Masori Lowest Price Guarantee and buy this subwoofer online at Masori.de.

Ergonomic design and aluminum construction for maximum robustness

The Hertz Mille Pro MP 250 D2.3 / D4.3 impresses with its non-resonant aluminum construction with six spokes, which combines lightweight and robust materials to minimize sound distortion. The innovative Boundary Free IIR rubber surround improves sound performance while maintaining compactness. This unique design allows for an increase in SPL without increasing the external dimensions. The optimized geometry of the Exponential V-cone® ensures high rigidity and prevents deformation even under large excursions. This is where Hertz's advantage in material selection and processing technology becomes apparent, which focuses on durability and sound quality, which is particularly evident in high-power applications.

Thiele-Small parameters for precise sound optimization in the Mille Pro MP 250

With an equivalent volume (Vas) of 25 l, a resonance frequency (Fs) of 30 Hz, and a low Qts value of 0.54, the Mille Pro subwoofer offers precise tuning for a variety of enclosure types. The high BL value of 7.1 T*m demonstrates the power of the drive and ensures defined bass reproduction. The mechanical Qms value is 5.92, while the electrical Qes value is 0.6. The combination of these parameters ensures a dynamic and clean sound, ideal for sealed enclosures with a volume of 17 liters or more. This allows you to flexibly adapt to different resonance requirements to achieve the optimal sound in your vehicle.

10-inch voice coil for durable performance and heat resistance in the Hertz subwoofer

The 65 mm, 4-layer voice coil is wound on TIL-P material and specially designed with ventilation holes behind the winding. This promotes efficient heat dissipation and minimizes mechanical losses, which is reflected in a high Qms value. These features provide robust protection against thermal stress to guarantee stable and long-lasting performance. The combination of high power handling and precisely tuned components makes the subwoofer ideal for anyone seeking long, full-bodied sound reproduction, even under intense conditions.

10 subwoofer for closed and reflex enclosures

The Hertz Mille Pro MP 250 D2.3 / D4.3 is specially tuned for sealed enclosures from 17 liters and reflex enclosures up to 22 liters. This flexibility in the enclosure design allows for adaptation to different vehicle configurations. The subwoofer is optimized for a Qtc value of 0.85 in sealed enclosures and delivers precise bass at a frequency of 50 Hz. In reflex enclosures, the tuning frequency is 38 Hz, which makes the bass reproduction particularly deep and low in resonance. Choosing the right enclosure can have a decisive influence on your sound, while the Hertz subwoofer provides the basis for versatile adaptations.

Magnet and resilience: Maximum control and quality

The Mille Pro subwoofer is equipped with a high-density flux ferrite magnet that generates a strong magnetic field. This technology ensures the efficient transmission of the enormous 1200W power handling. This ensures not only powerful performance at high levels but also precise, controlled sound with low distortion.

Optimized terminal block for low resistance

The terminal block is designed for wire up to 8 AWG, enabling extremely low wiring resistance in low-impedance configurations. A plastic cover protects against accidental short circuits, increasing the reliability of your car hi-fi system. These thoughtful details reflect Hertz's engineering expertise, which focuses on maximum efficiency and safety.

Support and expertise at masori.de

For seamless installation and technical support, Masori offers a variety of services, from on-site installation in Frankfurt (Oder) , to expert support (FAQs & Help ), to a comprehensive audio blog . The support offered facilitates the integration and optimization of the Mille Pro subwoofer in your vehicle, maximizing your listening experience.