Has anyone ever heard these speakers by Volti Audio?

I heard them at a show last year.  Marvelous speakers, with no horn colorations that I could hear.

Listened to them at the 2015 NY Audio Show paired with a Vinne Rossi Lio, Palmer TT, and Vinnie Rossi Amp. Clean and clear at high volume but lacked the emotional involvement I look for. They didn't draw me into the music, just presented it in a "matter of fact" way.
I second the Charney recommendation for and involving horn that plays music not just sounds! AFAIK Charney will be at the 2017 Capital Audiofest.

Disclaimer: I have known Charney since '05 (bought a used Dac from him) and own a pair of his creations.   

Have a couple of days on the Rivals. In my system/room I'd have to say that there is great emotional involvement and musicality.

Still very early in my time with them. More after a few days.

I would love to hear the Simon Mears Uccello speaker (10,500 UK Sterling) which similar(ish) to the Vittoria.

@david_ten

 please keep us informed of your hearings.....

@gawdbless 

I would love to hear the Simon Mears Uccello speaker (10,500 UK Sterling) which similar(ish) to the Vittoria.

I imagine they sound in a ballpark not all too different. Still, they use different drivers, cross-overs and horns, and likely they are voiced differently as well. To my knowledge the folded bass horn of the Uccello's is only very slightly modified from its original Klipsch Belle state, whereas the bass horn of the Vittora's has seen a more extensive "make-over" by Mr. Roberts compared to their La Scala origins, which I'm told also leads to them digging a bit deeper in the bass region (perhaps at the expense of ultimate speed or "sharpness"). Conversely, more or less, Mr. Mears is particularly sensitive towards coherency, which is exemplified through his choice of midrange driver; the B&C unit used in the Uccello's apparently is more at ease in its lower frequency spectrum compared to the BMS 4592 used in the Vittora's (a driver among many others Mr. Mears tried out), which is one of the reasons why he opted for the Italian B&C (Mr. Roberts on the other hand seemed to favor "a bit more detailed" BMS sound). If I had to guess the sound of the Vittora's may be a bit more full-range, relatively speaking, whereas the Uccello's sees a perhaps livelier upper/lower mids and warmer midrange overall. I gather the Vittora's could be a more popular choice among audiophiles in general with a bit of "hifi-inkling" to their character (Mr. Roberts has sought to electrically tame the upper bass/lower mids, I believe), where the Uccello's may in a sense be a more "purist" or even vintage approach to horn sound. Please take my assessments on this with a grain (or teaspoon) of salt, as I haven't laid ears on the Vittora's. From a pure experience standpoint I can only encourage you to give the Uccello's a listen. They are marvelously musical and dynamic speakers, and Mr. Mears is one fine and humble fellow.