Very Rare ESS Ad, 1981, Transar/atd II Speaker, Article | eBay
ESS Labs - The key to our AMT-10 and AMT-12 floorstanding speakers is our ESS Heil Air Motion Transformer. Using revolutionary, one-of-a-kind technology, just about every genre of music sounds better on
Transar II - Techtalk Speaker Building, Audio, Video Discussion Forum
THE Show 2012 (at CES) - ESS Labs speakers, CI Audio - Audio Federation
ESS Laboratories 12" AMT Series Loudspeakers - Positive Feedback