I own the smaller Emotions, very quick and natural sounding. All of the Zellaton drivers are handmade to very special specs, so they all have the same characteristics no matter which ones you own. I drive mine with the Job 225 amp so I can just imagine how they would sound with better electronics like the CH Precision, Constellation, or the likes.
Back in the 80's when I was an audio dealer, I spoiled myself with the Acoustat !V's and DD servo amps. I loved the speed and transparency of those. Ever sense I have looked for the same characteristics, those Acoustats beat every dynamic speaker I ever sold. I found out that Gideon was also a big fan of those and talked me into trying the Zeallatons about two years ago. I have not been disappointed since. The Zellatons are better than any other dynamic speaker I have ever heard.
And Zellaton is proving it at the shows. Out of 452 exhibitors in Munich this year, Zellaton was #1. Last year in Munich, Zellaton was #1. In many of the US shows, Zellaton has been voted #1. I more than likely have my final pair of speakers unless I move up to another pair of Zellatons.
As for volume, I run my Emotions up to 90-98db peaks with no problem, but I can easily play them at a whisper when the wife is around and not miss much at all. And if you like a disappearing act from your system, these Zellatons takes it to the highest level I have ever heard. They are very holographic.