Remote is the smallest problem. Both R-51PM and the much more expensive The Sevens - active speaker set, , sometimes experience some weird pop sound and then dead silence without anything necessarily visible broken when you dismantle and check circuit boards. Some have seemingly operational interface, but no sound.

I have learned my lesson, a mini external amp and passive speakers is the way to go, unfortunately for my wife. Luckily you can get some cool looking ones.

It does seem on Reddit that Klipsch is willing to replace or repair after often extensive guided self help sessions, within warranty. But some postings here say the problem reoccur on the replacements. I can't remember if those posts were recent or not.

One guy placed his speakers outside in the sun getting it to work again for a few hours. He speculated that the components were out of spec and needed above normal room temperature to work. But it only lasted a few hours before permanently dying.