Imagine the Mille Pro MP 300 D2.3 / D4.3, an outstanding 12-inch subwoofer from the renowned manufacturer Hertz. This powerful model stands out for its compact size and is designed to deliver superior performance without compromising sound quality. Equipped with advanced technology and high-quality materials, this subwoofer offers a wide range of features that elevate the listening experience for car owners to a new level. In short, it is an impressive product designed to deliver deep, powerful bass while preserving the clarity and warmth of the sound.

Technical Specifications

• Size mm 300
• Power Handling - RMS W 600
• Power Handling - Peak W 1200
• Impedance Ohm 4+4 / 2+2
• Voice Coil Ø 65 (2.5)
• Magnet Size W x D x H mm 165 x 75 x 35
• Weight per Component kg 8.63
• Magnet High-Density Ferrite
• Cone Water-Resistant Pressed Paper
• Xmech mm ±27

Electro-Acoustic Specifications

• D mm 260
• Xmax mm 17
• Re Ohm 1.9
• Fs Hz 24
• Le mH 1.6
• Vas l 74
• Mms g 235
• Cms mm/N 0.19
• BL T*m 12
• Qts 0.42
• Qes 0.45
• Qms 5.9
• SPL dB 86

Physical Specifications

• A 321 mm
• B 287 mm
• C 187 mm
• D 164 mm
• E 327.5 mm
• F 59 mm

ENCLOSURE

SEALED BOX

Enclosure Data - REFLEX BOX

• Vb l(cu.ft.) 36 (1.27)
• Fb Hz 33
• Qtc -
• B mm 620
• H mm 390
• T mm 330
• Mounting Hole - 287
• Wood Thickness 19

CUTTING LIST - REFLEX BOX

• A mm 620 x 390 Quantity 2
• B mm 620 x 292 Quantity 2
• C mm 352 x 292 Quantity 2

FEATURES

• Ergonomic, compact design, specially developed for sealed enclosures from 27 liters volume.
• CCAW, 65 mm (2.5 inch) 4-layer voice coil capable of handling 1200 W music power. The 4 Ω + 4 Ω DVC impedance configuration enhances versatility and fits any amplifier system.
• Voice coil wound on TIL-P material with ventilation holes behind the winding. This combines efficient heat dissipation with a high Qms factor (low mechanical loss) for dynamic sound.
• Exponential V-cone with optimized geometry for high cone stiffness and strong deformation resistance even at maximum excursions.
• Surround-free IIR rubber surround for higher SPL performance while maintaining a nominal outer diameter.
• Mineral-injected paper cone for superior stiffness and damping.
• Extremely acoustically transparent, low-resonance aluminum alloy basket with six-spoke standing structure and built-in ventilation holes under the spider.
• CNC-machined, elegant, diamond-cut basket edge with the Hertz logo.
• The terminal block accepts cables up to 8 AWG to provide extremely low wiring resistance in low-impedance configurations. A plastic cover prevents accidental short circuits.
• Option to mount the subwoofer on the enclosure wall, fully utilizing its minimal dimensions.
• High-performance compact motor with a superior magnetic field transferred to the coil.