Can anyone identify these speakers?

Those are the Tablettes, and the venue is DejaVu Audio in Northern Virginia.  The proprietor, Vu Huong, likes to put ultra high end amps on the Tablettes to demonstrate how important is top quality amplification—even a small, lower cost set of speakers can sound utterly amazing with such amplification.  The amps he uses for such demonstrations include the likes of the Synthesis amps shown in the picture or exotic rebuilds of Western Electric 124 amps.

The amps are the NYC model (commemorating New York City).  You don’t ‘need” amps that good, but, you will not extract all that these or ANY speakers are capable of delivering without pretty good amps.  The point of this demonstration is: don’t think that it makes sense to buy the best speakers you can afford and slap any amp on them.