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Title: ER6i: excellent sound isolation
Review: I use the ER6i with a Rio Forge MP3 player. I used to have the Sony MDR-EX71SL until they had an unfortunate encounter with the zipper on my briefcase. Perhaps I am unsophisticated, but I liked the overall inherent sound on the EX71SL better than the ER6i. The sound on the Sony's was warmer, and I felt like I could see the string vibrating on the electric bass, etc. It's possible that I haven't perfected the ear insertion procedure on the ER6i's which according to the user's manual and other reviews is critical to achieve optimal sound.However, in terms of listener isolation from ambient sounds, my experience suggests that the ER6i is far superior to the Sony product, and it was in hope of that isolation that I got these instead of simply getting the same product as before. For what it's worth, the volume setting on the MP3 player is several clicks lower than it used to be when on airplanes.
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