Hertz MP 28.3 PRO – 1.38″ High-End Car Audio Tweeter | 180W Peak Power

The Hertz MP 28.3 PRO from the prestigious Mille PRO Series is a high-performance 1.38-inch (35 mm) car audio tweeter designed for enthusiasts seeking exceptional detail, dynamics, and a wide, realistic soundstage.

Based on the advanced technologies of the legendary Hertz Mille Legend ML 28.3, the MP 28.3 PRO combines a premium Tetolon® fiber dome, powerful Double Neodymium magnet motor, and advanced acoustic chamber design to deliver smooth, detailed, and powerful high-frequency reproduction.

Key Features

• Premium 1.38″ (35 mm) Tetolon® dome tweeter
• 180 W Peak Power
• Frequency response: 1 kHz – 25 kHz
• High sensitivity: 91 dB SPL
• Advanced Double Neodymium magnet system
• 28 mm (1.1″) CCAW voice coil with ferrofluid cooling
• Extended rear acoustic chamber for improved damping
• Optimized FEM (Finite Element Modeling) faceplate design
• Includes compact crossover with level adjustment
• Designed for high-end OEM integration and custom installations

Advanced Acoustic Performance

The Hertz MP 28.3 PRO features a specially designed rear acoustic chamber filled with natural fiber damping material. This technology lowers the resonance frequency to approximately 900 Hz, allowing a lower crossover point between the tweeter and midrange/woofer.

The result:

• Better integration with midrange speakers
• Improved sound image on the dashboard
• More natural vocal reproduction
• Wider and more precise soundstage

Premium Tetolon® Dome Technology

The lightweight Tetolon® fiber dome, optimized through FEA simulations, provides excellent transient response and controlled dispersion.

This ensures:

• Smooth high-frequency extension
• Detailed instrument reproduction
• Excellent off-axis listening performance
• Reduced distortion at high output levels

Powerful Motor & Voice Coil Design

The Double Neodymium magnet system provides maximum magnetic efficiency and excellent control, while the large 28 mm CCAW voice coil with ferrofluid cooling ensures high power handling and thermal stability.

The MP 28.3 PRO maintains clarity and dynamics even during demanding musical passages.

Easy Installation & Fine Tuning

The included ultra-compact crossover provides installation flexibility and allows tweeter level adjustment:

• 0 dB
• -2 dB

A wide selection of mounting accessories makes integration easier for both OEM upgrades and advanced custom car audio systems.

Technical Specifications

Why Choose the Hertz MP 28.3 PRO?

The Hertz MP 28.3 PRO is designed for premium car audio systems where precision, power, and realism are essential. With Mille PRO technology, advanced acoustic engineering, and high-quality components, it delivers a detailed and immersive listening experience.

Perfect for:

• 3-way car audio systems
• DSP active installations
• High-end OEM upgrades
• Competition-level sound quality builds

Hertz MP 28.3 PRO – professional-grade high-frequency performance for demanding audio enthusiasts.