Bought new and sold in ’90 a pair of ESS AMT 1Cs’, but never could forget that large amt driver and how damn fast it was...
Kicked self too many times, finally eBay’d a pair with original xovers and pair of meh 12" drivers of unknow origin. (Later reconed for practice...)
Of course I replaced the ribbons, nothing else to break with them except your foot if you're clumsy... ;)
Got gifted with a new pair last year, along with an ESS Eclipse 2241 am xover .
Still looking into a woofer that can keep up with them....*G*