Ihave the SA-14 my son the 8260. He wanted to har the difference so we unplugged his from his system and plugged it into mine and turned it on for three days before doing the test. To do the test we first played a CD through my SA-14 then through his 8260 using the same preamp, speakers, interconnects. There was no question about the superiority of the SA-14. Clearer, more defined, more articulate, more revealing he was not pleased. I have not heard the various Sony models you mention so cannot say about them