- Liittynyt
- 13.12.2016
- Viestejä
- 1 755
An AMT for headphones
After spending more than a decade refining the AMT as a tweeter for use in loudspeakers and monitors, Klaus still had one more idea: applying it to a wearable headphone. The idea wasn’t entirely new as there had been a few attempts to integrate AMTs in headphones but none had succeeded at reproducing the entire frequency spectrum, focusing instead on providing the mid- to high frequency clarity of the AMT combined with a separate dynamic bass driver.
The HEDD team approached the problem in a similar way to how Klaus had originally come up with the ART design: what if changing the geometry of the Kapton folds could open things up and enable accurate full range sound?
What followed was a long process of trial and error that eventually led to what we call Variable Velocity Transform (VVT), an update to the geometry of an AMT driver’s folds, which in a monitor requires them to be of the exact same shape. With VVT, the AMT’s diaphragm features folds that vary both in width and depth and can therefore reproduce the full audio spectrum from 10 to 40 kHz.
VVT was unveiled in 2020 with the launch of the HEDDphone, the world’s first full-range AMT headphones and the latest evolutionary step in the history of the AMT driver. In 2023, following intensive rounds of R&D incorporating feedback from users, we released the HEDDphone TWO which features an updated AMT design that improves on the build and accuracy of VVT
Olisiko se innovaatio tässä nyt sitten tämä Variable Velocity Transform (VVT), jos AMT (Air Motion Transformer) on jo 60-luvulla keksitty? Eli siis haitarin taitosten vaihteleva leveys ja syvyys?
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The HEDD Air Motion Transformer Driver - Clarity and Innovation
HEDD co-founder Klaus Heinz was the engineer who innovated the AMT driver design to make it more compact, an idea that changed monitor design in the 1990s. At HEDD, this legacy of innovation continues with our own AMT design integrated into all our products. Learn more.hedd.audio
Juuri tuon se vaatii, jotta saadaan toistettua muutakin kuin diskanttia. Juuri sopivasti oikoluen arvostelua RAAL SR-1a:sta, joten vielä tämän kuun puolella tulee juttua nauhaelementeistä kuulokkeissa. HEDDphone 2:n saan luultavasti myös testattavaksi syksymmällä.




Toki samalla tiedostan, missä haasteet menee massavalmistuksen ja laadunvalvonnan osalta. Pienikin muutos elementeissä, rakenteessa tai korvapehmusteissa, niin kertaalleen määritetyt DSP-asetukset onkin yhtäkkiä hieman pielessä.
