Hi guys my nakamichi 45z is starting to show its demons. It turns on and off as it pleases. I then turn it off for about 10 minutes and it starts working right. My question is do the newer Naks have the same reliability issues ie CD400 or CD500. I was looking at a CD500 but I here all these horror reliability issues. I have had my 45z for about 3 years now trouble free. Any insight or comments welcome. I want a SQ head unit and haven't heard a better sounding deck then the Naks.