Tony, Your opinion is based on your Kn6000 and that, as it should be. Three members of my local keyboard group had Kn6000 I was the only one that had problems. After 10 trips to Miami, 110 round trip, and many phone calls and lots of aggravation – and letters to the higher ups, they made good by sending a new Kn6500. No charge for the keyboard or shipping. Wow, even I was surprised.
Two of my friends still have their Kn6000 and no problems have occurred.
Elizabeth, you missed a Kn5000 on Ebay that sold for in the lower two hundreds. I feel that had to be the best buy ever – beyond Casio or Yamaha from the Psr3000 and back. I still do not understand what they did to the keyboard to make my mic. sound so clear, so real, great.
John C.