Dali, Amphion, Zu

It is certainly true that many manufacturers have experimented with elimination of the crossover from their speakers. There have been varying degrees of success but the fact that many attempt it seems to validate the claim that crossovers are best avoided.
Where I feel Zu surpasses previous efforts is in the bandwidth of their midrange driver.
If your Tones have fewer than 200 hours on them, you can certainly look for improvement as they loosen up. I have no experience with the Tone itself but the issue is really with the mid range driver which is the same as the one in my Druids. They improved steadily for months with daily use.

Agreed it is a heckuva driver. I am a little nervous though in that I'm not fully happy w/the midrange transparency and my 60 days will be up soon. Am trying to amp up the break-in.

I'm less sold that crossovers are best eliminated. Certain kinds of transducers might be best for different frequency ranges. Ribbons for highs and mids, dynamic drivers for lower tones, for ex. In this scenario, a crossover is obviously required. I have, experientially and without intention over the last 20 years of listening, found that I like designs w/first order slopes, and don't like those w/fourth order slopes. They sound flat and lacking in flow to me and I've owned some highly regarded ones. Maybe this is the cost of hacking up the signal so much to accomodate the drivers

Anyway, my point is that it's all a tradeoff and comes down to personal taste. There are obvious advantages to a single driver doing most of the work. I'll be happy to be wrong, but I suspect my VMPS RM40s with their ribbon mids are always going to sound cleaner w/voices to my ears than the Tones.

As an aside, another standmount I've heard recently that I really like is the Aurum Cantas Volla. And hey, I believe it uses a third order slope.

Rblnr-
Call Zu and ask for an extension. I'm pretty sure they'll give you another 30 days. It's not without precedent.
Then it's up to you to play them long and loud. Break in is a pain but the reward is significant.

I'll try that, thanks. Want to love 'em, but there is w/o question a noticeable lack of clarity at the moment w/vocals -- they sound a little 'thick'.

Rblnr: Can't you leave them playing all the time, specially when you are away? You don't have to be present listening to a driver being broken in. With 10 hours/day, it should take 10-15 days at most.