XDJ RX3 vs 900nxs2 Sound Quality

Hi,

I am wondering what has a better sound, the newer XDJ RX3, or the DJM 900nxs2. I own an XDJ RX2 but am looking to upgrade to either the RX3 or 2x CDJ 3000s and a 900nxs2. I am just wondering what will sound better - I know sound is subjective but there is still better clarity.