Hi there...purchased a pair of L3m speakers. When I power one of them on..there is the usual momentary delay and then you hear the speaker make a subtle noise as it kicks on. That is normal. But on the other one....it has the usual momentary delay and then it snaps bfriefly and kind of loud I think as it kicks on. Anyone ever experience this??? After it is on there is no issue...only at start up does it do this snap noise....