Shure SE315 Audiophile IEM

the ETY hf5's(or if you want headset hf2/3 depending on phone brand, same unit as hf5 but with headset for apple or non-apple) are the best if you are talking quality+isolation shure dont come close in my exp, with foamies or triflanges i have tested etys at 30-40db isolation using a cheap tester on a job site. for the pl50 im currently listening using tips like these http://www.ebay.com/itm/152498116492 those give a deeper fit then any stock tip and are quite comfortable but arent as good for isolation, for that you would want to get the ety triflanges. the hf5 i cant say anything bad about, i had 1 set fail, they replaced them without any problems and even tossed in a cople extra sets of small triflanges for me when i asked!!! ety has a great warranty and, on top of it, you can trade in our of warranty broken iem's of theirs for a NICE discount on their products....i one day will trade the hf5's in, when they die(well one of the 2 sets i have) and get myself a set of er4pt's. isolation alone, the hf5 and other ety sets are the gold standard in my exp(and from all i have read) http://theheadphonelist.com/headphone_review/etymotic-research-hf5-hf2-hf3/ thats what i would recommend, if you want cheaper, even the kids are decent, but they have a very high impedance (so you cant hurt your ears...as a kid...) hope this helps, jokers reviews are quite good, im glad he moved the reviews he was doing using the headfi forums to his own site with a searchable database ;)

The audiophile community doesnt really care for the 535 though. Its too rolled off and boring. Sure, when it first came out it was pretty good, but there are MUCH better options in its price range now.