For me the best sounds at the show:
Overall technology independent and in no specific order:
Aries Cerat
Living Voice with Vox Palladians (I also heard the small speakers sounding good but not ultimate)
Western Electric/Silbatone
Odeon/NEM (I think it was NEM)
Alsyvox/Omega
Diesis Audio (Italian open baffle/horns)
Goebbel + Enstrom + Kronos
Wiener Lautsprecher Manufaktur (new model was stunning with Tchaikovsky symphony...a real surprise)
Supravox + Line Magnetic
By category:
Best Planar: Alsyvox. Hands down the best sounding planar at the show and perhaps the best sounding one ever. I would love to hear what this thing can do with good tube amps. This might be the least colored speaker I have heard and now it is a planar with the attack and dynamics of a speaker with high sensitivity pro drivers...not quite the level of a top 100db+ horn system but not far off.
Best Horns: It was close this year, IMO, between Aries Cerat and Living Voice. Living Voice was slightly off from last year because A) It was the Vox Palladian, which so far has not convinced me it is as good as the Olympian and B) the bass was lumpier than usual and not as well integrated. Still, it was still very realistic in many of the most important ways.
Aries Cerat was super transparent, ultra dynamic and had a nice overall tonal balance. The addition of bass horns this year gave additional weight to recordings that made it sound truly full range. The transient response was the best I heard at the show and only approached by the Alsyvox speakers. With a good recording you felt you were there.
Honorable mentions: WE/silbatone. Rolled off in the highs and the bass...but it didn't matter! This system sounded very lifelike in all the right ways but was clearly more colored than than the two above. Nevertheless, it delivered the emotion and the speed was astounding so that deliniation of rapid runs on the piano were effortlessly and SOTA resovled. I don't think I have ever heard the workings of the piano so clearly resolved and yet still integral to the wholeness of the sound. Not a setup for all genres of music and thus honorable mention.
Odeon/NEM: Very transparent and dynamic...perhaps a touch bright at times. Still, it was very well resolved and dynamic and the balance of the speaker was very good. I think a better source than the Reed TT would have elevated it even further.
Best open baffle:
Diesis Audio: These are reallly open baffle/horn hybrids but they were pretty awesome! Fast, punchy and with very realistic highs. Great tone as well and really a superb system.
Supravox/ Line Magnetic: Stuck in a small room on the ground floor, nonethless they were dynamic and fluid with great tone. Not quite as resovled or quite as dynamic as the Diesis Audio speakers; however, they were very organic and detail and transparency were more than adequate. The best part is the price, around 10K euro for the speakers.
Best "conventional" speakers:
Goebbel Divin + Engstrom: While this speaker has an AMT tweeter, I put it in the conventional category. It is using high sensitivity pro drivers (at least that is what they look like) and thus is getting around 95db/watt. This time coupled with a good tube amp, the speakers really sang and were quite coherent, especially for a multi-driver speaker. Fast, dynamic and uncongested sounding (unlike the majority of cone/dome speakers I heard), if I was in the market for a top notch conventional speaker I would probably look here rather than YG, Magico, Wilson, Von Schweikert etc.
Live Act Audio: Again with profi drivers and a horn tweeter (coax) but otherwise conventional. They live up to the name with a huge and punchy sound. Perhaps not hte most neutral or the most transparent on this list but damn do they rock. Live recordings do a good facsimile of sounding live. I think they are pricey for what they are but in today's price climate I guess it is still ok for the performance you get. This could be the ideal speaker for someone who plays a lot of rock music but also wants Jazz and classical to perform.
WLM: Surprised me with a new model this year. Looked like a simple two-way on top of a dedicated subwoofer (which was top and bottom firing woofers). The system was about 94db and had a papyrus woofer (light and fast) with an AMT mounted into a wooden wave/guide. This blew me away on big classical making huge space but still retaining good image focus. Also, tonality was very good as was transparency. For about 25K euro I thought this was one of the best buys along with the Supravox speakers. Not sure what the electronics were in this room but they were not WLM (which I think was mainly rebranded Trafomatic).