Murataltuev, integrating a subwoofer has always frustrated me. I have tried probably ten different subwoofer over the years. The last was with my Beauhorn Virtuosos, that had no bass below 60 Hz. I tried massive 8 feet tall by 15 inch diameter isobaric subwoofers with 2000 watts of power. Boom, boom! Ultimately, I sold the speakers. This was followed by the futility of Avantegarde Trios.
The Tidal Contrivas have much better bass than my Acapella and go deeper. Do I think they do sub 20 Hz? No, this is what I might get out of adding the Zu Method.
Ozy, I agree. The US typically uses importers who add perhaps 30% as their profit. What Tidal has done, is to remove the importer. So Tidal staff now have to run their own rooms at shows and deal with reviewers and orders and shipping, as well as warehousing some product.