You must be sort of a cub. Many of us have been where your talking and back again. I have amps by Pass, Carver, Pioneer, Adcom, B&O, Fisher, HK, Dynaco and Denon and 3 or 4 I haven't built yet. I listen to all of them still, yet my main 2-channel kit is an old beast of an AVR. Class A thru Class D and I can usually make any of them work provided the speakers are not some fickle boutique eccentricity that need special everything.
If you can't get audibly flawless 2-channel music out of any of the capable AVRs, you simply don't know what you're doing, and that is nobody here's fault. Honestly, you come across as one of those internet trained trendaudiophiles that just showed up on the scene sometime after the millennium, or someone who bought their way in without paying much in the way of historical dues. Your shtick is old and worn out, yet you seem kind of green. Everyone here has heard this same spiel, ad nauseam.
Luxman is an American company? The Luxman Audio I know of, started in Japan.
Finally, all of the regulars here are aware of all the different ways to listen to music and all of the available products to do it with. I can't even believe you're trying it with this old internet news.