Large horn speakers are fairly rare in this country, but take pride of place in the Japanese and European high end, often partnered with valve amplifiers. You can do that with these ones, as they’re 100dB efficient! That means you produce 100dB with one watt of amplifier power.
The horns cover principally the midrange and upper bass, and give the speakers a distinctive appearance, rather like outsized flowers from an animated film.
The exotic doesn’t end there. The tweeters are plasma – nothing to do with TV. The plasma tweeter uses the excitation of ionized gases around a conductor to generate high frequency vibrations. They do this very quickly and efficiently, and produce incredible detail, all the way to dog-whistle frequencies and beyond – typically up to 50kHz. There are very few (if any) other manufacturers who make these zero-mass high speed tweeters.
Deep bass is handled by 15” woofers – four of them in each cabinet. So everything is covered more than adequately by this varied array of drivers. One of the challenges for the builders of loudspeakers like these is to integrate this group in such a way that you get a seamless, balanced total picture.
The result of all this is that you feel you're right there, with the soundstage enveloping you. Everything just happens seamlessly and with no sign of strain whatever.