I have a Panasonic LX-1000 that I got a few years ago and has been in my main HT system ever since. Today I was at the flea market and picked up an LX-600 for $15. I tested it and it works great, so i'm pretty happy. The only question that remains is if the LX-600 is better than the LX-1000 (if so i'll put it in my main system instead). From what i've been able to find out, it looks like the LX-1000 was made in 1990 while the LX-600 was made in 1993. Aside from that, I don't know much. Thanks.