Toroidy SET with toroidal output transformers NEW

Who said, that something exotic shall be expensive by default? You can got you 150 EUR worthy of exotic exploration with this new amp from 2×2,5W stereo Single Ended vacuum tube amp (4xPCL86) with DT5 chassis and output toroidal class A transformers. Do You still think Single Ended amp is not possible with toroidal output ? These guys have patent on it..