Just came across this thread and thought I'd comment. I sold stereo in the mid 70's for a company called Atlantis Sound in the Wash DC area and grew quite fond of the ESS line, especially the AMT-1A and AMT-1T's. I owned a pair of the AMT-3's for a while, but never could get them to sound even remotely coherent. The AMT-1T's were (and are) special, though. I recently acquired a pair and had the woofers rebuilt (surround rot) and am still amazed how well they hold their own against many more modern designs.
Thanks for the trip down memory lane.
Thanks for the trip down memory lane.