Focus is on new ATC 50 SE towers now coming on 150 hrs. play replacing ATC 50 ASLT (active). As ragingly good as the ATC 50 ASLTs are, and they are, these are markedly better and that is saying something. It's like "this 300K Porsche is better than this 200K Porsche". Well, alright. Let's travel that crazy road.
Foundational bass response is simply deeper, bit more controlled with better texture. It's a "Twilight Zone" thing as the bass of the 50 ASLT is quite substantial and well controlled. Never entertained using subs. Bass to rearrange you inside.
Sound stage broadened and grew a bit taller and deeper. Improved quickness and dynamics, which I can only attribute to the fully discrete amps as we're still dealing with same drivers. A more open presentation. Perhaps the slightly rounded shape of the cabinet contributes to that plus the aforementioned discrete amps.
Micro dynamics are insane with space between performers and their notes. Lee Morgan's trumpet sounds nothing like Clifford Brown's.
I've entered into the "never say never again" space. This should be my endgame transducer. Some of the 'weird' (good weird) stuff showing up on recordings takes you deeper into the performance. 'Weird' being foot tapping you never heard before, brush of a music stand, guitar amp buzz, indiscernible studio background noises and conversations. I'm all good with it. Stellar recordings become even better. Bad recordings may not see light of day again as it seems like punishment. What were some of those engineers doing at the controls?
I'm not marketing here. This is my experience. I couldn't care less what people think about my purchase. Go about your business and enjoy your thing. It's a forum for the sharing of experiences that may be informative. If you hate active, we've already heard about it. Don't be pedantic. Now, go listen and enjoy your audio system. Cheers

