I did quite a bit of listening to a Nait 3R back in 1999, then bought a Nait 5i in 2004. I'm not sure if this is correct, but at the time, my dealer told me that the 5i had a passive preamp stage. I then moved to a 112/150, and that was a huge step up. I then added an Olive Flatcap, and found a Nait XS with Flatcap XS to be a comparative letdown. I also listened a bit to the first SuperNait. For me, the separates have always performed better than the integrateds, and there are some separates that are fairly inexpensive. My current combination of 102/NAPSC/TeddyCap (with Teddy cables)/150 is musically stunning, and made up of components that are individually rather affordable. I would not swap out for a Nait of any stripe at this point, despite the annoyance that my stereo requires two racks now.