HEDD have announced a pair of headphones to complement their growing range of monitor speakers, which like their monitors feature the AMT driver for which they are best known. These open backed headphones feature a redesigned AMT driver which has been adapted to deliver full range performance rather than the HF only duties the AMT tweeters cater for in the monitors.

AMT Now With VVT

To achieve this full range performance Klaus Heinz, the designer behind HEDD products, has developed a new technology called VVT which is a new variable diaphragm geometry that replaces the regular geometric structure of conventional AMT tweeters. By varying the width and depth of the folds in the AMT driver, the performance can be extended down to cover the whole audio spectrum.

Unlike conventional headphone drivers, ATM drivers aren’t pistonic and due to their clever design they are more efficient, In fact the AMT moves air four times faster than the diaphragm moves, conventional pistonic designs have a a 1:1 relationship between the air speed and the diaphragm speed. The single folds of an AMT driver squeeze the air in a 4:1 ratio. See the diagram to see how they work.

Aiming at both, the audiophile and professional markets, the HEDDphone brings the dynamics and resolution of the AMT principle to the world of top-end headphones. The HEDDphones will be available in Q3 2019. The price will be “well below 2000€”.