No...the correct way is to connect the sub via rca coaxial cable from your receiver. Usually, the sub has a built in amp.
How do I connect a subwoofer to my speakers?
I have Definitive Technology BP7006 speakers in my theatre system. One with a blown amp, and the other on the way. I want to hook up one subwoofer. All my wires are in the walls. Can I connect the subwoofer to the speaker terminals on my DTs? thanks in advance.