Well, an update on my quest. Now the Ck10 are listed on ebay and I bit the bullet and purchased a pair of IE8. I know that the highs are not as prominent as the Ck10 but what I gain in other areas, bass particularly, make for that loss. I think that it might be time to then concentrate to improve the source of the music more than the receiving end (earphones). Maybe time to switch to Cowon?