The new speaker is the F105 - the small one. The F2 (your link) is an old design. None of those are listed for sale at this moment. The new small F105 is not really based on anything from the F2.
The F105 is a concept design I have used to test out some new solutions for cabinet design and improved radiation pattern for small speakers. They are not expensive enough to generate any interest, but for their purpose they are nice - easy to move around, good enough for evaluation of the technical solutions.
What can not be achieved is exactly what the HEDD designer discuss in the movie - dynamics. The improved radiation at lower frequencies improves clarity and imaging, gives less coloring, but the impact and slam of the larger speakers simply is not there. And they can not play loud enough for what I call "full-scale" music reproduction. Some of this can be improved with better drivers, but it is not possible to generate the wavefront that a larger speaker creates. There is a difference even at moderate volume. Soundstage and presentation of the instruments are also different, but not necessarily better or worse than the larger speaker - this changes dramatically though, in a room without the acoustic treatment in Room2, the radiation pattern is quite wide and you will not get the deep reflection free gap I have here in Room2 in a room with reflective surfaces close to the speakers.
("Dynamics" here is a term I believe most of us understand the meaning of - it would be better to use the term "transient reproduction." The definition of dynamics is the difference in loudness between quiet and loud parts, and that is not what we mean here. Here "dynamics" means sense of power and realism and immediacy of attack on drums and all other sorts of percussive instruments.)
What I am doing in this exercise with the F105 (very small) and the F2 (slightly larger) is to find how to make a small speaker with the sound of a large speaker. The presenter in the HEDD video talks about how to make a speaker with the dynamics of a large speaker of the old studio monitor type combined with the resolution, smoothness and imaging of newer hifi-type designs. That is not the same. Because he (HEDD) - as I understand it - does not mind if the speaker is big.
I already have a speaker with both dynamics and resolution and imaging, one that is more like slightly larger in size. But this speaker does not sound like a big hifi-speaker, because the radiation pattern is very different. The HEDD speaker looks like the presentation would be more in the traditional hifi-direction. This does not mean he (HEDD) is wrong an I am right, it is a matter of choice.
I have several articles on the blog-page about this now, one about "Can a small speaker perform like a large", one where the F105 is presented with both measurements and sound impressions. I will not spam this post with links, those interested can easily find it on my web-page in the blog-section.