When Elac updated the UB51 to the UB52 they lowered the upper crossover point from 2,700 to 2,000 Hz, so the even lower 1,800 Hz on the UBR62 is a continuation of that trend. Having such a low crossover point to a 1" dome tweeter is something that has often been cited as a weakness of many 2-way designs. The prevailing opinion seemed to be that a 3-way with ~3,000 Hz crossover to 1" dome tweeter would produce superior results. Elac seems to be taking a different path, which is why UBR62 vs. Kali IN-8 v2 measurements will be interesting.