This is an important point. But going over to the Wharfedale site and looking at their specs, there are several things here which indicate good engineering and potentially good measurements to me:
- probably broad and even dispersion all the way up, as there's a small mid dome which plays from 1.3 to 4.7 khz, and an AMT tweeter with broad dispersion above that. This means no beaming when we approach the crossover frequencies, because the drivers are smaller than the wavelengths they are asked to reproduce
- most of the most sensitive range in our hearing is kept crossover-free
- edges are rounded, i.e. less diffraction
- cabinet seems well-constructed
Personally I also really like ribbon or AMT tweeters, but opinions here vary.
Wharfedale has also made speakers for a long time, and this seems to be a refinement of a previous top-of-the-line design. All in all, I would totally expect this speaker to sound good, unless they somehow managed to muck something up.