Mundorf AMT U40W1.2-C Air Motion Transformer

-10 %

RRP 209,00 €

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Mundorf AMT U40W1.2-C Air Motion Transformer
4 Ohms · Ø80mm · Neodymium

The AMT U40W1.2 is the smallest model in the U.Series. It is suitable for 2-way table top speakers as well as for 3-way floor standing speakers. Thanks to its compact design, the AMT U40W1.2 can also be effortlessly integrated into Car-HiFi systems. Small as it is, it provides all the quality features of the AMT U.Series with Mundorf diaphragm: Exceptionally low K3 / K5 distortion data, a truly powerful music performance within the entire application range and, at the same time, the fine micro-dynamics and richness of music details that distinguish all Mundorf AMT’s.

Our AMT U.Series tweeters are gaining more and more popularity among discerning DIY loudspeaker builders too. In order to meet their demands in terms of precise but easy baffle-front mounting and quality finish, from now on, every U.Series model also will come with an attractive black aluminum face plate. A precisely fitting cutout in the back of the 6mm! thick plate ensures that the AMT motor unit is perfectly centered and can be integrated flush into the loudspeaker baffle with an enlarged contact surface.

Short data

Usage as Tweeter
Power Handling 10 Watt
Impedance 4 Ohm
Frequency from 3.2 Hz
Max. Frequency 43 kHz


Overall dimensions Ø80 mm
Baffle cutout 33.2 x 33.2 mm
Depth (Total) 45.2 mm
Membrane Type Air Motion


Resonance fs fs: 3900 Hz
DC-Resistance Re: 3.7 Ohm
Sound pressure dB: 92 SPL



Technical Drawing


PDF-Product information

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