Ok I read (translated) a few articles on there, read the AK SP2000T, Caiyin N6ii, LP P6 Pro, Lotoo PAW Gold Sony DMP-Z1 against the LP W2, Fiio KA3, Caiyin RU6.
The general impression that I get is what I already know - USB Dongles have made strides and quickly caught up to even luxury DAPs in...