Lomb,

Apologies for my participation in the hijack.

If you'll look on the back of your speakers, you'll find two sets of posts on each speaker where you hook up your speaker wire You'll see a copper....uh, brass.....you'll see a metal "strap" running from one positive post to the other positive post, and another running from one negative post to the other negative post. Just be sure that the two "straps" are positioned properly, and all 4 posts are tightened to hold those straps FIRMLY. If proper contact is not made, it's possible one or more of the drivers in the speaker will be non-functioning. If you run your speakers at a reasonable volume, and put your ear up close to each driver in each speaker, and find that all are working properly, the "straps" are probably already correctly positioned and tightened.

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton