I found this DAC by fortuity.
It sounds noticable better than the original HIFI-Berry + pro which has a very similar design with two extra clocks. But this one has a professional 4 layer board with extra analog and digitalground in the middle (can be split up byjumpers on the bottom for feeding it with extra power supplies).
Also it has other types of capacitors all over the board.
With 69€ it costs slightly more than the “original” one with the thin 2 layer board - but the 4 layers are worth it, i think.
It also has 6 blue shining LEDs which indicate the 3 power regulators, 1 for DAC is active and 2 for the crystals to indicate which one of them is currently active.
Just set Volumio to I2S “HiFiBerry plus” for this one.
Has anybody else tried it out ?