Well, I've compared the Dalis with the TB2s for the first time.
Both speakers are beautifully built, as you would expect within their price bracket. I always knew this would be a tough gig, both are incredible. So is £1800 of Dalis worth the investment? Some might say 'no' while others would say 'yes'.
For the first time I've spent some time with various CDs and vinyl, which for the first couple of days I didn't-- just using the Dalis through the TV and Freeview radio.
After a couple of hours this morning swapping back and forth between speakers.
In many respects the Dalis are more sophisticated sounding, there's a tiny bit of extra of clarity, detail throughout all the frequencies. Realism is slightly improved on the PMCs. The only flaw in the Dalis, if you can term it as a flaw, is they are harder to drive. That doesn't seem a problem to amp, it's incredibly ballsy for a 80 watter.
I'll spend another couple of days comparing....