"But I have to say: whoever says a cheap box store $50 pair of speakers sounds just like a $50,000 pair of speakers, or some cheap headphones for 50 years ago… I want to have what you are smoking."
Since this thread is about midfi or hifi, it would be safe to say that the $50 boombox or bluetooth wonderball falls in the low-fi, shite-fi, etc category.
However and IME, there are many doofus (midfi at best) $50,000+ speakers that are simply "carried" by high-end/pristine sounding electronics. In fact, this has been going on for ages. When some 5k to 10k-ish speakers get the same privilege of pairing with such high-end/over engineered electronics, the results can be shocking to many.