*Koss headphones specifications?!?!?!?!?!?!?*?

Ok. I'm about to buy some unknown earphones, and I'm looking at the specifications. The ones i'm using are from koss. But i'm confused in the region of the specifactions. I have like mad of questions :)
1. Is a frequency response of 10-20,000Hz better than one of 15-20,000Hz?
2. is in that a difference between 16 oms and ohms??if so, which one is better?
3. The bigger the sensitivity number is, is it bad? for example: 100dB SPL/1mW or 112dB SPL/1mW?
4. Is <0.3% distortion better than <1.0%?
Thanks surrounded by advance! I promise to baptize a best answer!


Answers:    Let's break it down:

(1) The average human being hear frequencies from 20 Hz to 20,000 Hz, so the frequency response isn't that big of a deal. The ones that hold a low end of 10 Hz will enjoy a slightly better bass response, but you probably won't notice.

(2) You gone out a number there -- difference between 16 ohms and 8 ohms, I'm guessing? No biggie within either -- that's a method of the resistance, and it doesn't matter because the device driving the earphones will adjust automatically, so no worries there.

(3) The difficult the sensitivity, the better. Higher sensitivity means a better dynamic variety, which means more accurate reproduction of nouns.

(4) The lower the percentage of distortion, the better. More distortion means more racket.

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