I have to agree. I just got mine playing last weekend. They are incredible little speakers. They play much bigger than they look, clear and detailed, and a fast open sound.
Rich posted the following on the Techtalk forum regarding his experience with the Kairos. I thought I would copy it and link it in this thread as well:
I too am planning to make a 3 way, but using the method you outlined in your Kairos report, by adding a subwoofer under the Kairos, probably at a higher crossover frequency than 50Hz so I can reduce the excursion on the Satori to be able to play them louder. Although I have to admit they were really screaming with the Mcintosh MC402 playing my friend's hard rock CDs. The Satori plays so well down low that the only issue I see is the limited excursion of the woofer - I have heard mine bottom on occasion, when playing music with hyped up bass mix, like Brian Bromberg or dance music that's not too compressed. Loud and low classical music is my thing, but it would be nice to have the Kairos handling the refined parts 200Hz and up. Doubling the woofers MTM to raise the sensitivity and power handling would also be something I'd like to try.
I went to hear the NC Symphony play a Valentines program last night. Romeo and Juliet versions by three different composers, Tchaikovsky, Berlioz and Prokofiev. Berlioz was fairly tame, but Tchaikovsky and Prokofiev were really blowing off the roof. I When I had big Legacys I would play that stuff very loud. The refinement of the Kairos betters any speaker I've owned, even Quads, so I'm hoping that with a passive woofer of Jeff's design, or a subwoofer with active crossover I'll be able to relieve the Satori of the low bass so I can crank it way up.
Meantime, another update. Crossover and drivers are fully broken in now, and they sound wonderful. I've owned some great speakers but these take the cake. So much detail, yet it is so natural. There is no fake treble tizz or metallic cone ringing. The amount of tone detail and texture from the woofer is amazing. I was listening to an old mono LP of Brubeck/Desmond Jazz goes to College tonight. The tone of the sax is so perfect. Just the right amount of overtones, the sunny happy glow of his tone, the edge of the metal horn and rasp of his reed, everything is perfect. Violins, singers, brass all perfect. Playing a Chesky version of Fanfare for the Common Man I couldn't believe the tone of the trumpets playing in unison. I have played trumpet for 30 years, it was absolutely real. Speakers can't do this, or so I thought. I am glad I coughed up for the huge coils to get this kind of dynamics and tone. The other thing that is amazing is the imaging ability. I'm not a audiophile nut that prizes sonic tricks over music listening, but it's hard to ignore it when playing a good mono record. The band is dead center across all frequencies, top to bottom. The speakers might as well be potted plants it seems like there is no sound coming from them at all, not even in the low bass. Speakers with steep complex crossovers and ports can't do this as well, the phase is not equal side to side much less flat top to bottom. It is just as good as single drivers except it goes down to low bass, locked dead center.
Now with tweeter and caps broken in, I am happy with the tone balance. I won't be reducing the tweeter level as I said before. It is very balanced and natural.
In trying to diagnose the trouble with the lower mids I noted earlier, I tried swapping in the stock basic kit's steel laminated 18ga coils and could hear the difference. They are not bad, perfectly useable but the 10ga air cores are a noticable improvement in refinement and dynamics, much clearer low bass.
As for the low mid blurry issue, I thought it was CDP, but is still there and sadly I've grown used to it. It's just box vibrations coloring the direct sound. I can feel vibrations in the box walls. I used different bracing than Jeff's design and it's not good enough. I've designed a double box with sand wall filling, plus Jeffs window bracing on the inside. It preserves the internal volume. As soon as the cold weather lifts I'll build that. Thanks to Jeff for helping me work on the problem by PM. The speaker is so accurate that it really demands quietest best box you can make. I'm really looking forward to taking this amazing clarity and tone detail down into the bass.
Original post found here: http://techtalk.parts-express.com/showthread.php?240430-Kairos&p=1972067#post1972067