I bought my Kaisers through Gisele at Aid2Hearing. I wrote a little about the process here.   When I first twisted the K10s into my ears, plugged them into my iPhone and pressed play, the playlist I had ready sounded exactly as I had hoped - a bit dull and lifeless. In my experience the bigger the 'wow' at first listen, the more an earphone is likely to disappoint long term; initial 'thunderous' bass or 'twinkling' treble will often irritate my ears after a time. I have sensitive ears. After a pleasing enough listen with my iPhone, I tried several...

*I listened to the Westone 4Rs using iPhone 4S and the latest iPod Classic (6th Generation). The below sums up my listening experience from these sources only.*   The Westone 4Rs fit my ears better than any other earphones. With good tips, like Shure’s Grey Flex or ‘Olive’ tips, they feel snug without causing any discomfort. The nozzles on the 4R are shorter than that of Shure SE535 so the sound isolation isn’t quite as good, though they still do a reasonable job of blocking out external noise. As explained in the user manual, pulling your ears up...

*I have listened to the Shure SE535 using iPhone 4S and the latest iPod Classic (6th Generation). The below sums up my listening experience from these sources only.*   To my ears vocals sound better through the Shures than any other earphones I’ve heard. Voices are rich and clear. I often listen to audiobooks or Radio 4; just listening to people talking is a joy. However, I find the lower frequencies too thin. Bass is there, and is textured well enough to be able to distinguish between bass instruments, but it just doesn’t hit my ears with enough...