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Loudspeaker System

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A loudspeaker translates electrical impulses into sound waves; ideally, the loudspeaker / translator leaves nothing out and puts nothing extraneous in. It doesn't omit or color or mask. The perfect translator is perfectly simple.

Simple and impossible, until the Heil Air-Motion Transformer revolutionized sound reproduction. The Heil midrange / high-frequency transformer is the perfect translator.

There is only one compact system with a full-size Heil. The ESS AMT 1A Bookshelf system. Perfectly simple. Your ears will appreciate the difference.


Type: 2 way, 2 driver loudspeaker system

Frequency Response: 50Hz to 20kHz

Power Handling: 350W

Recommended Amplifier: 75W (minimum)

Crossover Frequency: 850Hz

Impedance: 4Ω

Sensitivity: 82dB

Bass: 12" cone

Tweeter: heil air motion transformer

Grille: brown

Finish: walnut veneer

Dimensions: 610 x 356 x 356mm

Weight: 27.27kg


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