Hertz Mille Pro MP 25.3 Car Audio Tetolon Dome 29mm Tweeters 120w Peak Pair

The Hertz Mille Pro MP 25.3 is a 29 mm Tetolon fibre soft-dome tweeter with a 25 mm ferrofluid-cooled voice coil and neodymium magnet, rated at 120 W peak. It is part of the Hertz Mille Pro range and is sold as a pair.

This listing is the MP 25.3 (29 mm). The Mille Pro tweeter is also available as the MP 28.3 (35 mm, 180 W peak).

Key specifications

• Dome: 29 mm (1.14 in) Tetolon fibre soft dome
• Voice coil: 25 mm, ferrofluid cooled
• Power handling: 120 W peak (high-pass at 2.5 kHz, 12 dB/octave)
• Impedance: 4 ohms
• Frequency response: 1.4 kHz to 22.5 kHz
• Magnet: neodymium
• Weight: 0.07 kg per tweeter

MP 25.3 PRO

29 (1.14) mm (in.) | Tweeter | 120 W | 4 Ohm

The MP 25.3 tweeters use a Tetolon dome and 25 mm voice coil to deliver a wide, linear frequency response.

• Tetolon fibre soft dome for natural, detailed reproduction of musical nuances.
• "Center Tuning Duct" geometry for lower resonance frequency and reduced harmonic distortion.
• High-density flux neodymium magnet, optimised for control during high-energy dynamic transients in the mid-high frequency range.
• 25 mm ferrofluid-cooled voice coil.
• Rear chamber filled with selected damping material and sized for a lower Fs, ensuring a well-damped high-pass frequency roll-off and a low cut-off frequency crossover point.
• FEM (Finite Element Modeling) optimised faceplate geometry for high linearity in off-axis installations.
• Wide range of installation accessories included for easy OEM integration.

The "Center Tuning Duct", positioned at the centre of the neodymium magnetic circuit, allows air exchange between the dome and rear load chamber, fine-tuning the acoustics and achieving a very low resonance frequency. This also benefits the woofer crossover point, helping to elevate the sound stage.