[can i conect a sub on klipsch 41rpm??]

yes it has one, but i dont know if i am doin wrong or what... 

[can i conect a sub on klipsch 41rpm??]

hello, is my firts klipsch speaker i buy.

and they are great, but i wold like to know if those speakers can be conected to a subwoofer active...

because i have one, and i try to conect it.. but it dosent work... i dont want to keep doin it, because i dont want to broke the speakers .

for that reason i want to know i need to buy a new subwoofer or just cant be conected..