HEDD Audio HEDDphone AMT Driver Headphones

HEDDphones use Air Motion Transformers, visible from the outside of the open-back earcups, to deliver an incredibly rich soundstage and pristine high end.

Made for audiophiles and recording artists, HEDD AMT headphones feature the full-range Air Motion Transformer (AMT), an electrodynamic transducer ‚Äčthat allows to move air significantly faster than common voice coil, planar, or electrostatic systems. Their traditional piston-like movement is overcome by a folded diaphragm that squeezes out air four times faster: A breakthrough for capturing more details in a musical recording.

30 years ago, HEDD founder and CTO Klaus Heinz designed the first compact and marketable AMT tweeter based on American-German Physicist Oskar Heil's original Air Motion Transformer invention. Since then, Heinz has increased its sonic quality in several fundamental revisions for his loudspeaker tweeter designs at ADAM Audio and HEDD.

In 2019 Heinz has started developing a full range Air Motion Transformer to break grounds for this superior transducer principle. In order to reproduce the complete audible frequency band (and beyond), the HEDDphone incorporates VVT technology (Variable Velocity Transform). It offers variable diaphragm geometry that expands the AMT principle to a linear full range (10Hz-40kHz) headphone transducer.

The HEDDphone brings the enormous dynamic capabilities and the superior sonic resolution of the AMT principle to the world of top-end headphones. HEDDphone excels where it really matters: in accurate, untamed, and touching music reproduction.


- Open over ear headphone
- Full-range Air Motion Transformer with VVT read more Technology
- Up to 3 times the diaphragm size compared to conventional drivers
- Mini-XLR Connector, high quality 6.3mm single ended 2 m cable included
- Custom artificial leather earpads
- Hand-built in Berlin, Germany
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Efficiency: 87 dB SPL for 1 mW
Impedance: 42 Ohms
Weight: 718 g
Dimensions and Weight in Packaging
Warehouse Resealed
Shipping Weight: 7 lbs
Shipping Dimensions: 16 x 13 x 8 in
Manufacturer Part Number (MPN): HEDDPHONEONE

For support or warranty questions, please contact the manufacturer:
Email: info@hedd.audio
Web: https://hedd.audio/contact/

Reviewers gave this product an overall rating of 5 out of 5 stars. (2 ratings)
Submitted March 17, 2023 by a customer from gmail.com in Houston, TX

"Awesome in all categories"

Overall: 5 out of 5 stars
(see rating details)
The overall sound signature is amazing. It is a warm neutral signature. Its presented with a flat profile, all instruments and voices are natural. The clarity, depth, imaging, separation of instruments are awesome. These are on the level of the Senn HD 800s, maybe better depending on the listener. I am audio engineer and I use these for my work. It will need a high power quality amp to get the best out of them. However they still give you good sound without an amp, I am not going to sit here and say its an absolute must, like most reviews and websites say, its just silly to say they don't put out sound unless you get an amp. The type of amp matters though. As I started with the THX 789, it was ok, but it was below others price more when tried. I upgraded to a singular amp, the sound changed quite a bit and better. I also use them with my Onkyo Denon AVR-X2700H, it brought out the depth and separation of instruments to a whole new level. I would say there veryfew headphones that can compete sound wise and technically at $1899 and below, they compete in the $3000k range with Hifiman He1000se. Heddphone do need sometime to break in at least 20 hrs. I recommend if price is not an issue as if you buy these theres no need to buy $3k to $4k priced headphones, unless you have specific taste as in bright or warm sounds.

Musical Background:

Mix Engineer

Musical Style:

Hip Hop/R R&B
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