After reading the full review, I do have wonder about using iron core inductors.
But then there are decent speakers using air-core, that are far from high-end.
But I don't know any mid to high-end that would not use air core.
The caps are another thing. Dali typically uses Bennic caps which are considered upgrades, but not really audiophile.
Again, have not heard these for myself, but based on 'hardware' alone consider the Dali Ikon 6 sold for the same price ($1750) I think they are higher now...and has cast baskets, air-core inductors, superior finish from what I can gather, not to mention the ribbon-dome tweeters used by Helicon vs. just the domes in the Lektor...well, I guess times are tough.
For that matter even my OnWalls and center use the same ribbon/dome config.