KLH ASW10-120 Subwoofer "passive speakers issues problems" Questions

problems with it, i do have the instruction booklet plus some other "techie" type material that may help. My friends an engineer and had some I am completley new to this site and don't know how to get

...passive stereo/hi-fi speakers of days gone by, modern multi-channel theater systems with front, center, rear and sub-woofer speakers are internally amplified, with active frequency cross-over filters ...

...passive ones. Again they are Behringer EUROLIVE B1800D PRO Active Behringer EUROLIVE B1800D PRO Active Behringer EUROLIVE B1800D PRO Active Behringer EUROLIVE B1800D PRO Active Behringer EUROLIVE ...