At the same price range, I would suggest that you try out the Dunu Trident which, IMO, is a superior IEM than the Denon AHC260. I have the AHC260 and to me, the isolation is pretty poor. It has very small housings which allows you to push the IEM deeper into your ears but does not provide good isolation even with tips changes. The AHC260 is pretty thin sounding and a bright sound signature. Bass is present but not tight nor deep. Mids are fairly well presented but instruments does pretty badly when the pace of the song is fast or cluttered with many instruments.