my experience with the Aerial's, is that they're a typical "slighly laid back" and forgiving audiphile sounding speaker, that's clear with good detail. Dynamic abilities is about on par with Theil, and similar lesser priced designs from NHT and Pardigm, as the speakers are passive and modest sensitivity only.
My experience is that they'll do good for music of most types, but not as superb with heavy dynamic material, to get your heart racing!...and that goes for HT.
While they're good, they aren't as dynamic as speakers such as even the Horn genre's, active speakers, some THX designs, Wilson Cub's, even the superb little Diappolito's from Triangle!(virtually no crossover, horn loaded tweeter).
If you want the pace and dynamic abilities of speakers like those in the local cineplex theaters, you gotta up the ante on the dynamic transparancy a bit. I think most enthusiests who are after "refined audiophile" sound mis this important feature of the system, and that's dynamic prowess...although bass management helps a lot, don't get me wrong.
As for your Dali's, I can't comment.
As for Aerials(the Dappolito one's), they get a 95 for refinement and transparancy/detail, and an 80 for dynamics(would be 75, but the dual mid/woofs helps boost dynamics and cancells out distortion somewhat).
Speakers like Avantgards with 110db horns and active woofers (same basic effect as bass management to separate woofers),dynamics jump to 98/100! (active horns go 100/100 for dynamics).
Active designs and very high efficiency designs have a dynamic advantage that makes the sound more real, and less flat. It's much more involving, passionate, exciting, even startling, which is critical with movies, IMO.
Just to get an idea of what I mention, you might want to go to the professionalhomecinema.com website, and read what they got to say(never heard the product, but can know of it). This will enlighten you a bit about what's missing in most home audio designs, dedicated for high end movie application. It's about right on.
Still, you can get very good overall results if you set your speakers up right, cross em over at 80hz to a sub(s), make sure it's all setup in phase for flat response, acoustics, etc, and you'll have very nice overall sound, yes.
Still, that said, for me, priorities such as focus, coherence,dialog inteligibility, dynamics, and reinforcement of the frequencies is critical. Then I put overall detail, transparancy, refinement bellow that for movie effectiveness. Audiphiles speakers tend to be more of the latter, and often are too laid back and uninvolving for effective movie sound. I think you'll find the Aerials a bit better than most here, and a better compromise that sounds good for music mostly.
However, back to dynamics and focus,etc...even speaker systems like the Klipsch THX horn system are going to be somewhat more potent for movie tracks, more authoritative and yet clear/detailed, and more involving(jump right out at you and make you jump...not have to "lean into the sound").
Anywhat hope that helps. They're good, you should try if you've got the seeds planted to try em, yes. Still, I'd go listen first if possible at that price range.
BTW, I've done custom theaters professionally for many years now, and been around the hi-fi gear in 6 stores for 15years now. Good luck
Good luck
