Re: Headphone Impedance affecting MP3 players
Yes, you will indeed find that MANY headsets do not work well with your Zen Micro.
I tried the Sennheisers and they did not work well at all because the player was unable to drive them to acceptable sound levels.
I settled on a pair of Bose QuietComfort 2 active noise canceling headsets. Yes, they're bloody expensive. They do, in fact, sound really great though and the ANC circuitry works better than most.
The Bose CQ2s come with a variable impedance that allows you to set them for portable music players and then notch it up a level if you are going to be using them with home stereo or, more troublesome sometimes, airplane audio.
With that said, I often find myself jamming at near max, or even max, volume levels with my Micro and the great thing about that player is it will still drive cleanly at max volume if that's where you need to be to get high sound pressure levels. I tried a Rio Carbon, for example, and it would start to degrade and clip at two clicks from max and was unable to drive even my Boses at acceptable sound levels.
If you find another set of ANC headsets or ear buds that work well with the Micro, please post!
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