Esoteric K03x vs K07xs

Hi.I am from Argentina.
My cd player is Marantz Sa11 s2.Did anyone compare and hear k03x and k07xs? I coundn´t encounter anyone who heard k07xs or compared them.Yes, everyone says that k03x is wonderful player.
Originally I wanted to buy Marantz Sa KI Ruby. But I contacted to one dealer of Esoteric in Korea( my citizenship is korea). And He said that he didnt compared A/B and heard two players (k03x and k07xs)separately. The sonic perfomance is so close. For him, 4 years are much for the advance of digital players. They sell all of the Esoteric k--X and K--Xs lines.Did anyone hear two machines(k07xs and k03x) and compare them?Thank you