Bybee Ultimate Speaker Filters...need info..

Maybe its just a language issue. Binding post on each (Bybee). Mine had a spade on one end and a binding post on the other.

My older units have binding posts to receive the end of the existing speaker cable, and then an attached pigtail of speaker wire terminated with spades to attach directly to my speakers which only take spades. Another option is pigtails of speaker wire terminating in banana plug for those speakers which can take that termination.
It sounds as if your speaker filters expect you to provide your own final length of speaker wire from the Bybee to your speaker terminals. Maybe, they figure you want to exactly match every portion of speaker wire in your system.

Every bybee speaker filter I ever owned,and I been through all the models had binding posts on one end and either spades or banannas on the other.