Marantz 2230 to subwoofer ?

I have a Marantz 2230 receiver made in 1973 anyone know how I would hook up a self powered subwoofer to it.
Thanks!

jimmycg03-13-2016 6:33am

jimmycg OP Details Discussions Posts This discussion Message User 6 posts 03-13-2016 at 04:46pm Copy Comment URL Report Comment Edit Delete Wow, that's the only way?
jimmycg OP Details Discussions Posts This discussion Message User 6 posts 03-13-2016 at 05:47pm Copy Comment URL Report Comment Edit Delete I notice a warning, your receiver MUST have common grounded outputs, or it will damaged if connected to the subwoofers speaker- level inputs! I hate to assume but I assume the Marantz 2230 has common grounded outputs??? Anyone have a clue on this one before I start playing around?? thanks again for everyone's help!!