A QUANTUM LEAP YES , they are a different phone than the super 5's . a waaay bigger soundstage especially if you use lossless , the treble is a lot more airy , better seperation between insturments , the bass goes deeeeper and there is less midbass , you could say the bass response on the triple fi 10's is flatter . This makes a better presentation for more genres of music . I used to have the super fi 5's and when I got my triple fi 10's , the first thing I notice was it was more like listining to full size cans because of the bigger soundstage that I have referenced above. Also I think this phone exibits just the right amount of detail , just one small tinny small minor issue I have ,( and I mean minor ), is that on some recordings , there seems to be a little too much treble energy , (I just EQ a little and it works for me) , you will still get an airy presentation in the high frequencies that lends itself to a bigger soundstage . Allso with that price . if it comes from an authorized dealer , I would say goooo for it . I hope this helps