I was planning on buying a new set of earphones and had a doubt regarding it. I remember studying that impedance matching is an important thing to consider whenever sound (or electricity) travels from one medium to another. I was just wondering if that is applicable when buying earphones. I noticed that most earphones have an impedance rating on the cover whereas a lot of mp3 players don't (i lost the cover of mine so i'm not sure if it had it). Also, if anybody knows the impedance of the Creative Zen Vision:M could you please let me know. Any help form you guys will be much appreciated.
Help, my PC with Windows 10 won't shut down properly
Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?