I understand but there would not be any companies pushing the enveloppe if some enthusiasts did not and do not take the risk.. There wouldn't be Genelec or ... A long list of companies that are, today at the vanguard of innovation and performance. Trinnov, Storm, Datasat, Lingdorf, etc are that too, a computer, basically... and likely any BD player, streamer ... so why not a speaker? I don't see a fan as an issue, there is one in many PA amplifiers and in most laptops.. and desktops... and ...I do find it kind of scary that the DD are running a distribution of Linux and a full motherboard with a fan in each of the speaker cabinets if I'm not mistaken. It truly is a computer with a cloud back-end. Imagine if DD disappears as a young upcoming speaker manufacture. A real horror after an initial investment of 13.500 Euro's.
Peace.