I recently purchased a Pair of LSi15's and an Emotiva UPA-200 to push them. Because I added something new to my A/V tower I decided to reorganize my wires and cords also to clean everything behind the tower. Well once I got everything hooked up I put on some music and things were working great. About a week after I put in The Dark Knight Rises and right at the beginning I started to to get loud popping and clicking coming from all speakers. I turned it down and checked the receiver to make sure everything was connected right. Than went back to the movie about an 1hr in same popping and clicking. Well at this point I thought it was a speaker wire since I moved stuff around something may have come loose. I re-striped all the wires and made sure no little strays were coming out did the same on the speaker side. This did not work and for the last 2 weeks I have been going through every solution I could think of. I was sure it was not the speakers because it was coming from all of them but I started to think it was the receiver. Than it hit me I was just staring at my A/V tower trying to think what the hell it could be and I relized I moved the damn surge protector right under the last rack in the tower. That is where the receiver sits. lo and behold the solution to my problem was interference from the surge because it was to close to the receiver. The A/V tower shelves are glass so it does not block anything. Since moving the surge protector no popping or clicking. Thank god because I really did not want to send anything in for repairs. I understand this my be something that gets talked about a lot but I just wanted to post my solution just in case someone is having the same problem.