OI own a refurbished Mac 4100 receiver and have been happy with it. However, just like folks who get a new car every couple of years, I was looking at the Yamaha integrated because it is newer and affordable. I use an Oppo 205, Ohm tower speakers and a Pro Ject Debut Carbon TT (that I only use a couple of times a month). Would I really hear a difference? I listen to mainly Americana with the usual boomer rock, Beatles, Stones, etc. I also have a number of SACDs and MFSL/DCC gold that I listen to. Any opinions?