I think the video is kind of misleading..
Due to bad sound quallity, it wants to make people believe the Tyros 5 sounds better and more authentic.
I compared these 3 keyboards for 2 whole days...
And when you take the main piano sound, the Genos and Pa4x are quite. Alot above the T5
When you add dsp, Genos definately can archieve the best sound.
When you compare the new sounds of the Genos, to the sounds that are also in the T5, You can also hear a difference, many of the newer sounds are more dynamic. And when you start using dsp, you can aleviate the sound of the Genos even more..
What often happens after playing an instrument for years, is that your ears get used to the sound, and the sound you used for so long will have become your prefference.
Also many of the older sounds still use exactly the same samples, and are identical in both instruments, but as said, the Genos dsp can lift the sound more then the T5 dsp. Just because of the simple,fact that the Genos has more dsp power. Keep in mind that dsp often gives the best natural results when you use it in small subtle amounts..
That to say, is that you can make the Genos sound exactly like the T5, but you can not make the T5 sound like the Genos.