I just upgraded from Klipsch R-15PM to Klipsch The Sixes. Now when ever I turn on\/off the speakers my sub will make a very loud pop (2-3 pops when turning on and 1 pop when off). My Sub is a Jamo J-12. I had this issue when turning off the R-15PMs when the sub volume was turned very loud so all I had to do was turn the sub down before I turned it off and it was fine. Another issue I am experiencing is that unless the gain is turned almost all the way off the sub will still play quietly to the song even when I turn the Sub volume as far down as the sixes will let me. I’m pretty good when it comes to computers and what not but I am some what of a novice when it comes to speakers so I appreciate any help you guys could give me! Right now my sub is sitting in the corner turned off like it’s in time out!