Subwoofer Hertz MP 250 D2.3 PRO - 10" - 600W RMS - 2+2Ω - Mille PRO - V-Cone

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The Sound Auto Concept Team

Highlights

• Mille PRO 10-inch subwoofer for extraordinary performance in a compact volume
• 600W RMS power and 1200W peak power
• Mineral powder-filled cellulose cone (Legend technology)
• V-cone® profile for maximum rigidity and piston-like operation
• Boundary Free Surround technology for superior emitting surface
• 65 mm 4-layer voice coil on TIL-P former
• 2Ω + 2Ω impedance for maximum versatility
• Optimized ventilation system without bottom plate drilling

Description

Extraordinary performance in a compact volume: this is the challenge of Mille PRO car audio subwoofers. Building on the solid experience gained with Mille Legend, the R&D team has optimized the production process to offer the "Hertz Sound Experience" to a wider audience, by re-employing the technologies and materials of this flagship line.

CONE AND SURROUND

The MP 250 D2.3 cone is made of mineral powder-filled cellulose, using the same construction technique as for Legend. The V-cone® profile increases rigidity, allowing the cone to operate like a piston. The surround is made of very pure IIR butyl.

BOUNDARY FREE SURROUND

As with the Legend ML 2000.3 and ML 2500.3, Mille PRO subwoofers use Boundary Free Surround technology, which allows for a larger radiating surface at the same diameter, for higher sound pressure.

COMPACT BASKET

The compact six-spoke anti-resonant aluminum basket is the same as for the ML 2500.3; it contributes to the mechanical damping of the subwoofer by being acoustically transparent.

HIGH-PERFORMANCE VOICE COIL

The 4-layer voice coil wound on a 65 mm diameter TIL-P former is over 60 mm high to allow for greater excursions. The 2Ω + 2Ω impedance improves versatility by allowing the use of all types of amplifiers.

OPTIMIZED VENTILATION SYSTEM

The ventilation and pressure relief system avoids the need for a hole in the bottom plate with the following advantages:

• Better thermal inertia for lower operating temperatures during musical transients
• Better induction of the magnetic field in the coil with the same motor size. Thanks to the high iron content in the pole pieces, the probability of magnetic saturation decreases by maximizing the flux density generated by the magnet
• Possibility of installing the subwoofer on the rear wall, taking advantage of its compact dimensions. A damping disk is supplied with the product, allowing it to be attached to the enclosure through the 10 pre-drilled threads

OPTIMIZED COOLING

The holes around the voice coil and the 10 perforations in the back plate allow for better air exchange with the inside of the windings by forcing air to pass through the air gap to maintain a low operating temperature even during the most extreme musical passages.

PROFESSIONAL CONNECTORS

Connection is made via sturdy push-on connectors with short-circuit protection, accepting 8 AWG cables for the lowest possible resistance in low impedance (1Ω) configurations.

• Mille PRO 10-inch subwoofer for extraordinary performance in a compact volume
• 600W RMS power and 1200W peak power for deep bass
• Mineral powder-filled cellulose cone (same technique as Legend)
• V-cone® profile increasing rigidity for piston-like operation
• Very pure IIR butyl surround for durability and performance
• Boundary Free Surround technology for superior radiating surface
• Higher sound pressure at the same diameter
• Compact six-spoke anti-resonant aluminum basket (same as ML 2500.3)
• Optimal mechanical damping and total acoustic transparency
• 65 mm diameter 4-layer voice coil on TIL-P former
• Voice coil height over 60 mm for large excursions
• Linear excursion (Xmax) of 17 mm for significant air displacement
• Mechanical excursion (Xmech) of ±27 mm (1.06") for extreme performance
• 2Ω + 2Ω impedance for maximum versatility with all amplifiers
• Ventilation system without bottom plate drilling
• Better thermal inertia for lower temperatures
• Better induction of the magnetic field in the coil
• High iron content in pole pieces to prevent magnetic saturation
• Possible installation on the rear wall due to compact dimensions
• Damping disk supplied with 10 threaded holes for attachment
• Holes around the voice coil for better air exchange
• 10 perforations in the back plate for optimal cooling
• Low operating temperature even on extreme musical passages
• Sturdy push-on connectors with short-circuit protection
• Accepts 8 AWG cables for minimal resistance in 1Ω configuration
• High-flux density ferrite magnet for high motor force
• Magnet size: 165 x 75 x 35 mm for optimal performance
• Resonance frequency (Fs) of 30 Hz for ultra-deep bass
• Qts of 0.54 ideal for sealed and bass-reflex enclosures
• Sensitivity of 83.5 dB for optimal efficiency
• Robust construction weighing 8.2 kg for maximum durability

Technical Specifications

Thiele & Small Parameters

Mounting Dimensions

Why Choose It

• Mille PRO subwoofer offering the Hertz Sound Experience to a wider audience
• Technologies and materials from the flagship Legend line for exceptional performance
• Mineral powder-filled cellulose cone (same technique as Legend)
• V-cone® profile for maximum rigidity and piston-like operation
• Very pure IIR butyl surround for durability and consistent performance
• Boundary Free Surround technology for superior radiating surface
• Higher sound pressure at the same diameter
• Compact six-spoke anti-resonant aluminum basket (same as ML 2500.3)
• Optimal mechanical damping and total acoustic transparency
• 65 mm diameter 4-layer voice coil on TIL-P former
• Voice coil height over 60 mm for large excursions
• Linear excursion (Xmax) of 17 mm for significant air displacement
• Mechanical excursion (Xmech) of ±27 mm for extreme performance
• 2Ω + 2Ω impedance for maximum versatility with all amplifiers
• Ventilation system without bottom plate drilling for multiple advantages
• Better thermal inertia for lower temperatures during musical transients
• Better induction of the magnetic field in the coil
• High iron content in pole pieces to prevent magnetic saturation
• Possible installation on the rear wall due to compact dimensions
• Damping disk supplied with 10 threaded holes for attachment to the enclosure
• Holes around the voice coil for better air exchange
• 10 perforations in the back plate for optimal cooling
• Low operating temperature even on extreme musical passages
• Sturdy push-on connectors with short-circuit protection
• Accepts 8 AWG cables for minimal resistance in 1Ω configuration
• Resonance frequency (Fs) of 30 Hz for ultra-deep bass
• Qts of 0.54 ideal for sealed and bass-reflex enclosures
• Robust 8.2 kg construction ensuring maximum durability
• Ultimate solution for extraordinary performance in a compact volume

Documentation

For more technical information and the complete installation manual, please consult the official Hertz documentation.