My R-115SW bought April 2016 now is (a) not working and (b) just emits a constant clicking sound, like a metronome, when plugged in. Doesn't stop if I disconnect everything else (audio in, etc) or change any switches or settings. Just clicks when plugged in, by itself. I really like the sub and the look. If anyone has ideas please let me know. I suspect since it's over a year old it's off warranty and if it's really died I won't be buying another Klipsch. FYI the only thing connected to it was a McIntosh amp and I barely had the sub on at any level because I don't crank music.
Brian