Popping over the house speakers.

Question

When we use the Countryman in our church service we are getting a popping sound through the house speakers. We have tried using the flat and crisp response tips with no change. Just isnt as loud with the flat response tip, but neither is the pastor. No difference with loud speaking parts or regular talking. Maybe we have a setup problem. We are using a Shure Model UT1-TF as the base. Any assistance you can offer would be greatly appreciated.

Sincerely,

John Thomas
AV Tech
Cornerstone Baptist Church