NAD most definitely is mid as well as your speakers. Like others who’ve commented, HiFi requires spending 50k plus for a separates component type system. But who cares about the label? Why are you asking anyway? If you love your stereo and sonics then it really doesn’t matter what arbitrary label you or somebody else thinks your stereo is.
Buying HiFi equipment brings a whole new set of headaches. To get all of the potential out of the gear, you’ve got to also be willing to go all the way with your room, cables, power conditioning as well. Otherwise why spend the money?
All those guys who have their gear against the front wall and their racks between the speakers look awesome and they’re enjoying their music just as much as somebody that has a dedicated listening room built for the best possible sonics using high end gear.
It’s all relative. Don’t get caught up in a subjective name for your rig, just enjoy what you have...