The easiest thing to do if you have a five way binding post in your speaker is the following:
Unscrew the post sufficiently to exposure the hole through the center of the post. Insert one of the z-plugs in this hole (they will fit) Then screw the post back down so that it is snug over that z-plug. Then insert the other z-plug into the hole hole atop the post.
This works just fine and is perfectly acceptable to do with z-plugs. It is better than using another connector to double up because those tend to degrade the signal and/or add capacitance. The nice thing about z-plugs vs. banans is that they can fit in both holes of a five way binding post...
Unscrew the post sufficiently to exposure the hole through the center of the post. Insert one of the z-plugs in this hole (they will fit) Then screw the post back down so that it is snug over that z-plug. Then insert the other z-plug into the hole hole atop the post.
This works just fine and is perfectly acceptable to do with z-plugs. It is better than using another connector to double up because those tend to degrade the signal and/or add capacitance. The nice thing about z-plugs vs. banans is that they can fit in both holes of a five way binding post...