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  5. Mille Pro MP 250 D2.3 / D4.3

Mille Pro MP 250 D2.3 / D4.3

3 reviews

600 Watt

Mille Pro MP 250 D2.3 / D4.3

3 reviews

Technical 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.
  • More technical details
€221.58
-26% €299.00 €221.58
2% discount with credit card

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ProductMille Pro MP 250 D2.3 / D4.3 · D2 (2x2 Ohm)

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Impedance: D2 (2x2 Ohm)
Estimated delivery: Sep 16–Sep 21.
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datasheet
Hertz-Mille Pro MP 250 D2.3 / D4.3-10" (25cm) Subwoofer-masori-kaufen
€221.58
€299.00 €221.58

Hertz Mille Pro MP 250 D2.3 / D4.3 is a 10 inch (25 cm) Subwoofer with 600 W RMS and 1200 W peak power. Dual-voice-coil configurations of 2+2 Ohm or 4+4 Ohm. 65 mm, 4-layer CCAW voice coil on TIL-P carrier with ventilation holes. Boundary Free IIR rubber surround, exponential V-cone geometry, and paper diaphragm with mineral content. Resonance-optimized aluminum alloy basket with six spokes and integrated ventilation holes, as well as CNC-machined basket edge with Hertz logo. High-density ferrite magnet, magnet size 165 x 75 x 35 mm, Xmax 17 mm and Xmech ±27 mm. Designed for sealed enclosures starting from 17 l and with terminal block for cables up to 8 AWG with plastic cover.

Features
  • 10 inch (25 cm) Subwoofer
  • 600 W RMS
  • 1200 W peak power
  • Impedance: 2+2 Ohm / 4+4 Ohm (DVC)
  • 65 mm, 4-layer CCAW voice coil
  • TIL-P coil carrier with ventilation holes
  • Boundary Free IIR rubber surround
  • Exponential V-cone geometry
  • Paper diaphragm with mineral content
  • Resonance-optimized aluminum alloy basket, six spokes, ventilation holes under the spider
  • CNC-machined, diamond-cut basket edge with Hertz logo
  • High-density ferrite magnet
  • Terminal block for cables up to 8 AWG, plastic cover
  • Option for mounting to the box wall
  • Weight: 8.2 kg
  • Dimensions: A 268 mm, B 236 mm, C 160 mm, D 141 mm, E 274 mm, F 58.5 mm
  • Mounting opening: 236 mm
  • Designed for sealed enclosures starting from 17 l
Technical Specifications
  • Size: 250 mm
  • Magnet size (W x D x H): 165 x 75 x 35 mm
  • Xmax: 17 mm
  • Xmech: ±27 mm
  • Re: 0.85 Ohm
  • Fs: 30 Hz
  • Le: 0.65 mH
  • Vas: 25 l
  • Mms: 182 g
  • Cms: 0.14 mm/N
  • BL: 7.1 T*m
  • Qts: 0.54
  • Qes: 0.6
  • Qms: 5.92
  • SPL: 83.5 dB
  • Electroacoustic diameter D: 213 mm
  • Enclosure data sealed: Vb 17 l, Fb 50 Hz, Qtc 0.85
  • Enclosure dimensions sealed (W x H x D): 450 x 350 x 190 mm
  • Mounting opening sealed: 236 mm
  • Wood thickness sealed: 19 mm
  • Panel cutting list sealed: A 450 x 350 mm (2x), B 450 x 152 mm (2x), C 312 x 152 mm (2x)
  • Enclosure data bass reflex: Vb 22 l, Fb 38 Hz
  • Enclosure dimensions bass reflex (W x H x D): 534 x 330 x 276 mm
  • Mounting opening bass reflex: 236 mm
  • Wood thickness bass reflex: 19 mm
  • Panel cutting list bass reflex: A 534 x 330 mm (2x), B 534 x 238 mm (2x), C 292 x 238 mm (2x)

Frequently Asked Questions about Mille Pro MP 250 D2.3 / D4.3

What technical features does the Mille Pro MP 250 D2.3/D4.3 Subwoofer have?

The Mille Pro MP 250 D2.3/D4.3 from Hertz is a compact 10" Subwoofer with several notable technical features. It offers an RMS power of 600 W and a peak value of 1200 W. The speaker cone is made from pressed pulp with mineral powders, providing 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 Ohm, allowing for versatile adaptation to amplifier systems.

What does the Boundary Free Surround technology mean for the MP 250 D2.3/D4.3?

The Boundary Free Surround technology of the Mille Pro MP 250 D2.3/D4.3 enables a higher sound pressure level (SPL) without increasing the outer diameter of the Subwoofer. This technique maximizes the usable cone area, allowing the Subwoofer to remain 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 sealed enclosures, where strong, clear bass is essential.

What installation requirements apply to the Hertz Mille Pro MP 250 D2.3/D4.3?

The Hertz Mille Pro MP 250 D2.3/D4.3 Subwoofer is suitable for installation in sealed enclosures with a volume of at least 17 liters. The geometric dimensions are 268 mm (A) in diameter, 236 mm (B) in the mounting opening, 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.

What impedance options does the MP 250 D2.3/D4.3 offer?

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 adjust the wiring to meet your amplifier requirements, achieving either a low impedance for maximum amplifier power or higher impedances for networked systems. This makes the Subwoofer versatile in various setups that can be connected both in parallel and in series to meet your needs.

How does the voice coil affect the performance of the Mille Pro MP 250 D2.3/D4.3?

The voice coil of the Mille Pro MP 250 D2.3/D4.3 is a 4-layer, 65 mm CCAW coil (Copper Coated Aluminum) 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.

What parameters characterize the sound of the Hertz Mille Pro MP 250 D2.3/D4.3?

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 balanced bass reproduction. The Exponential V-cone® geometry ensures high stiffness and resonance-free operation, guaranteeing rich and precise bass reproduction.

How does the enclosure type affect the performance of the MP 250 D2.3/D4.3?

The enclosure configuration has a decisive impact on the performance of the Mille Pro MP 250 D2.3/D4.3 Subwoofer. In a sealed 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 further, as air vibrations are amplified, with the Helmholtz resonance at 38 Hz providing a deep bass boost. A BA cabinet helps optimize bass reproduction and ensures that the sound quality and efficiency of the Subwoofer are fully utilized.

What materials are used for the construction of the MP 250 D2.3/D4.3?

The Mille Pro MP 250 D2.3/D4.3 Subwoofer uses 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.

Is the Hertz Mille Pro MP 250 D2.3/D4.3 compatible with all vehicles?

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 ensure it is installed correctly. However, check the dimensions of your vehicle's compartment before installation to ensure there is enough space for the enclosure volume and the Subwoofer dimensions.

What mounting options are available for the Mille Pro MP 250 D2.3/D4.3?

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 minimum 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 both acoustically and physically in the car to maximize bass performance and safety.

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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