Hertz Mille Pro MP 28.3 Car Audio Tetolon Dome 35mm Tweeters 180w Peak Pair

The Hertz Mille Pro MP 28.3 is a 35 mm Tetolon fibre dome tweeter with 180 W peak power handling, sold as a pair with a separate MPCX 2T.3 crossover. It is part of the Hertz Mille Pro range.

This listing is the MP 28.3 (35 mm). The Mille Pro tweeter range is also available as the MP 25.3 (29 mm, 120 W peak).

Key specifications

• Component: tweeter, 35 mm (1.38 in)
• Dome material: Tetolon fibre
• Power handling: 180 W peak
• Impedance: 4 ohm
• Voice coil: 28 mm (1.1 in) CCAW, ferrofluid cooled
• Frequency response: 1 kHz to 25 kHz
• Resonance frequency (Fs): 900 Hz
• Crossover included: MPCX 2T.3 with level adjustment switch (0, −2 dB)
• Weight per speaker: 0.075 kg

MP 28.3 PRO

The MP 28.3 shares its core technology with the Mille Legend ML 28.3, bringing a 28 mm voice coil and high-end construction to the Mille Pro line.

• Tetolon fibre dome optimised with FEA simulations for excellent dynamics and wide angle dispersion.
• Double neodymium magnet optimised with FEA simulations for maximum field symmetry and efficient energy transfer.
• Extended rear chamber filled with natural fibre non-woven sound-absorption material for better damping and more natural acoustic output.
• 28 mm CCAW (Copper Clad Aluminium Wire) ferrofluid-cooled voice coil for high power handling and a lightweight moving assembly.
• 900 Hz Fs for a well-damped high-pass roll-off, enabling a low crossover point between tweeter and woofer.
• Faceplate with FEM (Finite Element Modelling) optimised geometry for high linearity in off-axis installations.
• Angled tweeter support included for straightforward fitting on A-pillars or the car dashboard.
• Wide range of installation accessories for OEM integration.
• Separate ultra-compact MPCX 2T.3 crossover with level adjustment switch (0, −2 dB).

The Tetolon dome geometry maximises off-axis dispersion. The rear acoustic chamber with damping material extends response to lower frequencies, reaching a resonance frequency of just 900 Hz, which allows the crossover point between tweeter and woofer to be lowered and improves sound imaging from the car dashboard.

The neodymium motor minimises nonlinearity for dynamic transient handling, while the CCAW voice coil keeps the moving assembly lightweight and stiff. Together these elements deliver high-frequency extension to 28 kHz.