Ok, here's the setup:

Connect all speakes to the appropriate connectors, then hook up the remote reciever.

Using the adaptor cable that came with the system (1/8-inch stereo to 2 male RCA plugs) and a pair of RCA female to 1/4-inch male adpaters (avialble at Radio Shack), plug in the 1/4-inch males to the keyboard's output jacks.

Plug the 1/8-inch male into the side of the remote reciever where you see the musical notation.

Now, set the small switch on the back of the reciever to the full up position (6 Channel Direct)

On the front of the reciever, select Pro-Logic II by pressing the effect button.

Now, turn all satellite volumes to maximum and set the sub volume at 50 percent.

Turn on your keyboard, set the volume at a comfortable level, then slowly adjust the Z-5500's main volume to a comfortable level as well.

NOTE: When the volume reaches maximum, you have not really reached the total, maximum volume level. By repeadedly turning up the volume after the indicator reaches maximium, you enter the BOOST LEVELS, which are sufficient to blow the windows out of your home. The highest I've taken this was Boost 6, and that was for an audience of 120 people.

Hope this helps,

Gary