I don't know whether there has been a "Jubilee" model of the Cobalt 806; if not, you're talking about one and the same speaker. Let's see if I recall the JMLab (Jaques Mahul Laboratory) story. The Focal brand initially stood for drivers sold to other manufacturers and diy kits, assembled speakers went under the JMLab brand. A few years ago, the names were joined and products marketed as Focal-JMLab which is still the company's name. For ease of reference or brand awareness, I suppose, shortly thereafter the speakers were just branded Focal. I beliebe, the discontinued Cobalt series was produced around the time of those changing names, so chances are you will find reference to different ones. I don't know your country of location, in Germany some internet sellers still offer 806s from EUR 600 upwards, I've noticed. Hope this is a bit helpful.
