I don't get LRS and cheap Ayima AO7 amp

Interesting story, I have an real nice tube amp Harbeth analogue system setup which is great. I ordered a Magnepan LRS for the goof a while back. Got it like 5 months later didnt think twice as it was put aside. I needed a cheap amp and DAC for an inceiling kitchen system. Ayimya ao7 $90 and a topping E30II $150. I hooked them up to Maganepan and I was shocked at how good it sounded.  How is this possible? I dont get it....  I have heard very expensive systems 70K+ . Are we being ripped off. I am not comparing the two so lets not go down that road....but what gives....