Before anyone can make an accurate assessment, it would be helpful to know a little bit about the system.

What kind of amp is being used? How many channels? What type of power output? What type of speakers? How many? What is the "spread" of the speakers (How are they laid out, how much area are they covering, and what is the ambient noise level.)?

Knowing some or all of the above will help greatly in suggesting a solution.

JJP