I use the older Etymotic ER4S with a HeadAmp Pico Power portable amplifier. It is clearly superior to the newer ER4SR.etymotic
That is understandable. If you get a chance check out the Koss KSC75 ear clips. Most people are in total disbelief once they hear them. Be careful to not pull the cord from the housing.I could never learn to like in-ears. I find them unhygienic & uncomfortable. Besides I think its untactful to listen to music in public. I cannot help but to think less of someone who does. If I want to listen to music I do it in private at home with my HD600s.