Just a brief listen with 2.1. (slow roll off, gapless on. Low gain, IE800, Japan battery) 2.1 sounds more detailed and "live". I find it a more involving sound. I'm going by a subjective impression of whether the sound involves on first listen, and whether it makes me want to listen more. And whether it makes songs more interesting, that I had not found that interesting before. And 2.1 seems like a good positive change in that direction.
- 115 Posts. Joined 1/2008
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