The RTI RK-1 can be used in many different ways. It can control RTI amplifiers such as the AD-4 or AD-8 but also has the ability to control almost any other manufactures equipment with the proper programming.
As I read your list above do you mean that you have 11 rooms and each of those rooms has an RK1-8 installed in it?
Based on the keypads ability it would be easier if you tell us what you want to be able to do.
Example: How many different audio sources would you like to listen to? What will they be?
Do you want all rooms to listen to the same source at the same time or would you like to listen to "CD" in one room and "Radio" in another room simultaneously? Or a combination of both? You could group some rooms together.
Answer the above questions for starters and we can recommend some equipment based on your expectations.
