Since I started to get into audio in my teens,I've always thought whatever system I've had sounded great,until I upgraded or got something new. I bought my Sansui integrated in 1978, and it sounded infinitely better than what I had before. In 1984 I bought some Klipsch KG4's, and my 1st cd player, and I thought I was in audio heaven. This lasted through 1993. At this time I wanted to add speakers to another room, and I figured the impedance on the Sansui wouldn't be right. Bought an Adcom GFA545II and GTP400. They just never sounded the same. There were more things I was hearing, but the Sansui had a kind of warmth I liked. I thought tubes would fix it, and after trying a few different tube preamps, I discovered a Golden Tube pre. Even my wife noticed a favorable difference. But it still wasn't the same as the Sansui. Now I have 2 systems with Anthem electronics, and newer Klipsch speakers. In most cases I'm very happy with these systems. One thing I have noted is that a lot of music originally released on CD sounds great on my current equipment, but older recordings that were originally vinyl, and later released on CD, don't have the sound I remember. This may be in part be an explanation for this sense of nostalgia in our hearing. Although, on many occasions I compared the vinyl to the CD, I just can't listen to the vinyl version anymore. And of course, my 49 year old ears may be hearing things diffrently. But believe it or not, when I see a Sansui AU517 integrated or KG4's on a audio or auction site, I still consider buying or bidding. Nothing like the old days, huh?