Hertz MP 25.3 PRO

Hertz MP 25.3 PRO | Mille Pro Series 1.14" Component Tweeters

The Hertz MP 25.3 PRO (Part Number: MP 25.3) is a high-end tweeter set from the Mille Pro series, engineered to provide an expansive and linear frequency response. By utilizing a Tetolon® fiber dome and a specialized Center Tuning Duct, these tweeters achieve a remarkably low resonance frequency. This design allows for a lower crossover point with woofers, effectively elevating the soundstage and delivering a more immersive, natural listening experience in any vehicle.

Product Highlights

Tetolon® Fiber Soft Dome: These 29 mm (1.14 in.) tweeters feature a Tetolon® fiber diaphragm and a 25 mm voice coil. This material is prized for its ability to provide a natural yet highly detailed reproduction of musical nuances, ensuring your high-end audio remains crisp without becoming harsh or fatiguing.

Center Tuning Duct Geometry: Positioned in the center of the magnetic circuit, the Center Tuning Duct ensures a balanced exchange of air between the dome and the rear load chamber. This acoustic fine-tuning significantly lowers the resonance frequency and reduces harmonic distortion for cleaner sound.

High-Density Neodymium Magnet: The high-energy neodymium motor is optimized using FEM (Finite Element Method) modeling. This provides utmost control over the voice coil during high-energy dynamic transients, resulting in superior accuracy in the mid-high frequency range.

Damped Rear Chamber: The rear chamber is filled with selected damping material and sized specifically to lower the speaker's Fs (resonance frequency). This ensures a well-damped high-pass roll-off, which allows the tweeters to be crossed over at lower frequencies for better integration with mid-bass drivers.

Key Features

FEM Optimized Faceplate: The faceplate geometry is refined through Finite Element Modeling to ensure high linearity and excellent dispersion. This is critical for car audio, as it maintains sound quality even in off-axis installations where the tweeters aren't aimed directly at the listener.

Ferrofluid-Cooled Voice Coil: The 25 mm mobile voice coil is ferrofluid-cooled to improve thermal management. This allows the tweeters to handle high power levels consistently during long, high-volume listening sessions without performance degradation.

Versatile Installation Accessories: Hertz includes a wide array of mounting hardware, including angled supports and flush-mounting rings. These accessories facilitate easy OEM integration into dashboards, A-pillars, or door sails.

Hi-Res Performance: With a frequency response extending up to 22.5 kHz, the MP 25.3 PRO captures the fine details of high-resolution audio, adding air and texture to the music that standard factory tweeters often miss.

Technical Specifications

What’s In The Box?

• (2) Hertz MP 25.3 PRO Tweeters (with attached 10" speaker wire)

• (2) Flush-mount trim rings & (2) Flush-mount clamps

• (2) Angled surface-mount housings

• (2) OEM mounting brackets

• (2) Metal grilles (pre-installed)

• Mounting screws and speed clips

• Ships within 1–3 business days from our warehouse
• Tracking included with every order
• Free 30-day returns if it doesn’t work for your setup

• 2-year manufacturer warranty
• Authorized dealer guarantee
• Real installer-backed support before and after purchase