After hearing a lot of noise and seeing measurements of the Devialet Phantom, I noticed this interesting speaker by Cabasse. Here are the official specs:
Price: ~2800€ 118 dB peak mono / 124 dB peak stereo 14 - 27 000 Hz Medium-tweeter 13 cm coaxial BCI Woofer 25 cm HELD Tweeter : 300 W RMS / 600 W peak Medium : 300 W RMS / 600 W peak Grave : 1 000 W RMS / 2 000 W peak Ethernet - WiFi - Bluetooth - Optical SPDIF - Analogue RCA - USB storage - Bluetooth remote Audio formats : MP3 - AAC -WMA - AIFF - FLAC - ALAC DAC 768 kHz / 32 bits 326 x 327 x 323 mm 18 kg
There's a smaller version called Akoya that costs half and goes down to 30 Hz and 115 / 121 dB peak available, too.
Even if I'll never buy something like this, I can't help but to think that this is how Hi-Fi should be like: inventive, high-tech and so extravagant it makes Genelec look conservative. In other words, interesting.
So, in this spirit, I wonder if some measurements and more in-depth construction analysis are available somewhere for these sci-fi speakers. I guess subjective opinions are also welcome, better than nothing.