Describe the "new HiFi sound"?

Was the phonogragh considered hifi sound back then? What about the reel to reel? Musical can have variety of meanings but technology have made it to a point where we can enjoy it. 

@dave_b 

The OP asks:

what is the new HiFi Sound to you?

What part of tube mikes and the good old days means "new HIFI sound" to you?

I think you missed the point...

Well, first off, the post is inane and lacks specificity. There is only authentic believable sound.  Some of that “sound” was made way before you were born.  Great recordings can be done in various ways…the Technology does not a great sound make!  This applies to playback as well…many variables involved.  There is Sound and then there is Reproduced  Sound.  Atmos is a way to make cheaper systems sound more detailed and immersive which while enjoyable for movies, doesn’t really apply that well to conventional music playback.  Most concerts are performed in a location in a 3D space with radiation patterns emanating from a more or less well defined location.  Well designed 2Ch does it more authentically.  If you want to hear the drunk guy taking a piss behind you in row 50…be my guest.

Atmos
Surround sound technology for home cinema and cinema; typically having a 5.1 or 7.1 setup with additional ceiling speakers or ceiling-directed speakers for home cinemas

Atmos response mostly for kota1