Agisthos, With a statement like that I would almost be certain you have never listened to a DS with PP OS.
I have owned Wadia,Electrocompaniet and EAD digital playback and listened to countless others,the PSA DS was and is way above any of them in sound quality. Although I have not heard the Bricasti M1...I'm sure it is a great sounding dac. If you get a chance go give a DS a in depth listen,I think you will be pleasantly surprised...