ESS’ Ricky Caudillo played the 12″ AMT floorstanding speakers ($4,499/pr) for me and I got a “clear” window into the music. The upper midrange and treble were detailed, extended, precise, and had a nice open quality. The transition to the 12″ woofer/mid was the best yet for ESS, owing to the implementation of the largest Heil AMT driver being crossed over at a low 800 Hz, the bass was strong and went deep. If you recall liking the AMT-1 from decades ago you ought to hear the latest from ESS, as it is well worth an audition. Channel Islands electronics drove the AMTs with great results.
ESS HEIL AMT, The Art of Pure Air Motion Sound
The Heil diaphragm, made of soft, quiet mylar to reduce background noice, is bonded with conductive aluminum strips. It is the equivalent in surface area to a conventional cone type eight inch band for better point source dispersion. The low mass diaphragm is suspended in a massive magnet structure concentrating an intense magnetic field around the diaphragm.
The ESS Heil Air Motion Transformer (AMT) is recognized by the audio industry as the most significant loudspeaker breakthrough of the last half-century and is licensed exclusively to ESS. Once you’ve heard it, you’ll agree that the ESS Heil AMT indeed delivers “SOUND AS CLEAR AS LIGHT.”