This mylar ribbon diaphragm is then suspended within a dipole magnetic field creating a very tight and tense pressure environment that basically means when a signal is passed through the folded pleats of the mylar ribbon design it moves air a heck of a lot faster than conventional designs, up to 5 times faster.Īs such AMT is perfect for exacting or demanding audio passages with fast transients where conventional designs might struggle to keep up. They are designed in such a way to have a much lower mass than conventional diaphragm with a much smaller surface area, by up to 80% on traditional speaker designs. In contrast to a planar ribbon, the diaphragm of an AMT is of a pleated shape similar to a bellows design, (think of an airbag). Unlike conventional diaphragms, AMT diaphragms are made of mylar ribbon, bonded with conductive aluminum strips. So, just what is AMT?ĪMT is an electroacoustic transducer, unlike traditional planar ribbon designs.
IWORD HEADPHONE REVIEW DRIVER
The HEDDphone is very different in that it is a single AMT driver that covers the full frequency curve and not just one aspect so the sound is ‘pure AMT’ in a sense. oBravo has been doing AMT in their IEMs and headphones for a few years now but that is a hybrid design with AMT being used in a classic tweeter configuration alongside a dynamic driver. I think it’s very important to emphasize that ‘full-range’ sticker for the HEDDphone AMT driver technology because AMT is not something new to headphones. Still no spare change sticker but it is wonderfully refreshing to see a headphone come out with this level of performance and not cost the earth.
More than that, people are speaking about it in relation to $3-4k flagship headphones yet the price is $1800. The key is the driver, this is a full-range AMT headphone that has never been done before. Heinz Electrodynamic Designs (HEDD) are not new to the audio business but this is their first headphone launch. HEDD Audio’s HEDDphone may well be that headphone for 2020, in much the same way last year we had the Meze Empyrean to many or the Diana Phi to others, two headphones that walked away with the awards in 2019. Be it design, performance, or technology that certain headphone tends to capture people’s imagination that others might fail to do. There is always one headphone launch every year that stands out a little from the crowd.
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