Vivid: fast, un-real resolution, dynamic & not as picky in room placement-your sweat spot is much larger than any other - high resolution speaker I have heard, no 1/4' this way or that!
I purchased the B1 & up-grading to the K1 on Monday. The finish is "top of line" just like Wilson. The Vivid speakers are more dynamic & faster than the Wilsons Sasha's with better clarity/resolution/dynamics. Sasha's have a little more bass (maybe), but Wilson lacks the midrange & tweeter clarity & overall resolution of the Vivids. (I aim not bashing Wilson in anyway I aim only commenting on what I have personally owned & feel justified in my impressions because I have owned them)
Wilson & Vivid go about eliminating cabinet resonance in opposite ways-Wilson relies on there cabinet materail used in critical locations, were as the Vivids use the speaker's shape & tapered tube loaded mid/tweets & opposing forces in the bass units & a fully open air port to eliminate any un-wanted cabinet resonance, basically the bass & air ports cancel each other out. There are just no sharp angles or corners & the X-overs are mounted in the speaker base.
The only speaker I have heard that best the sound of the Vivids is the Yg Acoustic Anats II Main Module's.
If your a resolution nut like me I would give YG's 1st. place followed closely by the Vivids & third Wilson.
The Sasha & K1 & (Yg main Modules @ $33,000.00(higher)) are basically @ the same price point. The Vivids sound as good as speakers in the "ubber Market" area.
Both Vivid & Wilson speakers are finished flawlessly in your choice of automotive paint. The Yg's are more of a Military grade build w/"ballistic grade Titanium baffles & 3/4" aircraft grade aluminum.(truly bullet proof)
IMO once you here the YG's or Vivids all other speakers sound veiled & muddy.
Vivid B1 & k1 are not as radical as the Giya & don't really stand out. The look of speakers is purely personal. I like the slim look of the B1 & K1 & not so much the Giya, but from what I read about the Giya the sound will trump the looks.
Vivid main engineer Larwence Dickie of B&W Natilus/matrix fame has taken the Vivids to the next level, the tapered tubes are no doubt directly born from the B&W, but perfected!
Sound is subjective & I always recommend trusting your own ears-it's your $$ after all. For my $$ Yg/Vivid give me the sound I prefer.
Kodg