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Manuals & Resources

ESS Heil Air Motion Transformer AMT Tweeter

Brand:|Model: Heil AMT
This is the original highly acclaimed ESS Heil Air Motion Transformer invented by Dr. Oskar Heil over 30 years ago. Unlike a normal piston loudspeaker that excites the air by alternately pushing and pulling a cone or dome, the Heil Air Motion Transformer linearly squeezes and expands its diaphram.
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Part # 264-600
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Highlights
  • Articulate, open sound quality
  • High sensitivity
  • Dipolar output for naturally ambient sound reproduction
  • Pleated diaphragm "squeezes" air instead of pushing it
  • 800 to 20,000 Hz from a single source
  • Diaphragm shape delivers wide horizontal/narrow vertical dispersion

Product Details

ESS Heil Air Motion Transformer AMT Tweeter

The ESS Heil Air Motion Transformer (AMT) tweeter uses a folded pleated Mylar diaphragm of a mere 0.0005" thickness! Its "voice coil" is a serpentine pattern of precision-etched aluminum, selected for minimal weight and high power handling. Unlike a normal piston loudspeaker that excites the air by alternately pushing and pulling a cone or dome, the Heil AMT Air Motion Transformer linearly squeezes and expands its diaphragm's pleats, moving the airload at a very high velocity. Because the moving mass of the Air Motion Transformer is extremely low and the magnetic structure very powerful, this combination results in extremely high acceleration that yields amazing transients.

Moreover, the Heil Air Motion Transformer diaphragm's low mass and high output also allow for an unusually high combination of efficiency and bandwidth to be attained in a single loudspeaker. That is what also makes it able to efficiently reproduce frequencies over the very wide range, between 500 to 20,000 Hz. The AMT is a dipolar transducer, making it act just like a live musical instrument in many cases propagating as much sound to the front as it does to the rear, enabling a more natural and musical ambience to be heard in the listening environment. The diaphragm's shape delivers wide dispersion in the horizontal axis but tightly controlled vertical coverage. This creates a wide soundstage while simultaneously minimizing unwanted reflections from floor and ceiling. Minimum crossover frequency: 800 Hz at 12dB/octave or more

ESS still manufactures the original Air Motion Transformer invented by Dr. Oskar Heil over 30 years ago.



Product Specifications
  • Tweeter TypePlanar
  • Impedance4 ohms
  • Power Handling (RMS)40 Watts
  • Frequency Response800 to 20,000 Hz
  • Sensitivity92 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)1,500 Hz
  • DC Resistance (Re)2.9 ohms
Mounting Information
  • Overall Outside Diameter6"
  • Cutout Diameter3.75"
  • Depth4.25"
ESS Heil Air Motion Transformer AMT Tweeter
  • BrandESS Labs Inc.
  • ModelHeil AMT
  • Part Number264-600
  • UPC844632079771
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (12 Reviews)
  • Weight14.2 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the ESS Heil Air Motion Transformer AMT Tweeter
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Reviews

ESS Heil Air Motion Transformer AMT Tweeter

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ESS Heil Air Motion Transformer AMT Tweeter

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