Tekton Ufberts

Hello I am somewhat surprised that a Speaker from a Tekton doesnot even come with a instruction sheet ,or st least a pdf file online on a $12,000 speaker.
on the back of the speakers , there are 3 sets of terminals , but information what so ever.
if trywire whichi would think why  no straps to the otherconnectors.
a fellow Audiophile recently bought them ,and asked me since he didnot even get a owners manual.
can anyone shed some light on the3 sets of terminals on the back ? Thanks much .