HiFi vs MidFi


I’m a relative noob to the audiophile scene, having just invested in an integrated amp and upscale (for me) speakers.  From time to time, I hear the term “MidFi” for some components.  Is there an objective or just largely accepted definition for this term?  I’d be curious to hear feedback on what constitutes HiFi vs. MidFi across various components.  
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You see this is the problem when a  speaker has a some sort of super tweeter.
Sibilance
If you can't hear the hisss
Its going to grate on my nerves.

Multi midwoofers also creates issues.
SF is trying to compete with Wilson's multi things.
Tekton is also trying this mega multi speaker thing.
Most drivers made by Scanspeak, Seas have serious flaws.
And then we have these labs trying their hand at the idea that **More = better**
Sorry ain't buying.

https://www.youtube.com/watch?v=afVwwe9Gyz4
And then we have these labs trying their hand at the idea that **More = better**

~~~~~~~~~~~~~
then again , sometimes more is better


Music start 8:34 Diana Krall,, never sounded so good.
It was only after the DLW4 was added in the mix, is when Diana Krall’s voice took on sensuous charms. Came alive.
I was like,,**ohh OK so this is Diana Krall doing her magic**
A single DLVX8 just somehow did not capture all Diana has to give.

5 drivers,, more can be better.
+ New developements soon, Feburary/March.

https://www.youtube.com/watch?v=BgWR6IbqOOg&t=12s
I should have let Diana's sing on the 1st tract, 
The W4 opened up the magic of that song. 
Just mind blowing how sensuous Diana 's voice.

+ I am blabbing too much in that vid..
Here try this test
Miles davis comes in at 1:41

https://www.youtube.com/watch?v=xcjYiZztHgM&t=1s
Are you saying
Scan speak is superior to Seas..
I am saying that the Sonus Faber sounds better than anything you have shown. Nothing to do with the name, nothing to do with the manufacturer of the drivers. It is about how it sounds. It sounds coherent, yours doesn't, at least to me. Period. I could care less who made the drivers or designed the speaker. It is miles ahead of what I hear from yours. IMO. You like shouty, splashy sound. You think that is high fidelity. I don't agree. It is that simple. 
simply put, mid-fi is canned music, obvious from a distance. hifi is being in the intimate [virtual] presence of real live musicians as through through the sheerest of veils. the former is grainy and generic and tiring, the latter has the utmost of natural ease and is addictive.