1” titanium lts vented tweeter with hybrid tractrix Horn
6.5" Spun copper cerametallic woofers
Bass-reflex via rear-firing tractrix port
Dual binding posts for bi-wire/bi-amp
Strong, flexible removable magnetic grille
Not an all-time low according to Camel*3, but reasonable compared to local RRP of $1600, which is very rarely discounted locally.
These are very well rated speakers, great reviews for the price, some video reviews linked below for those interested.