Sorry for my bad English, I'm french. I think there is a volume limit on these models because I entered in the "test mode" and, I can see on "Other"->"DEST" -> FR [sPS : ON] (here we can change by US,E,CN,KR,EU but the option doesn't apply) and->"SPSET" -> FR [sPS : ON] (here we can change by OFF or ON but it's the same problem....) So what can we do? Thanks a lot