the waiting gave me enough time to do research and I ended up getting GT770 250Ω! l just got em now gotta burn them in and lets see how it goes. Had M50 for sometime before & though haven't cancelled my per-order from Amazon yet!   

  Ans 6: Yes that's the best solution. In Note 2 turn on dock audio from setting. Ans 7: http://smile.amazon.com/gp/product/B00DHN9CMO/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1

I am also in same boat. I had M50 now have M50x from amazon pre order. But by reading up I see that in over all DT770 250 ohm is better. I will have Fiio E07K too. So I need some expert advice on what should I go with. I am not bass head. I listen to EDM, POP, RAP,HIP POP, BOLLYWOOD & INDIAN...

I pre ordered blue one on Amazon Feb 6th! When I saw a tweet by MKBHD and luckily I m in 30 day window for M50 from Amazon. Got Blue one for $160. But shipping says March 4th. The wait time is killing me but until then I have Jaybird Bluebuds X!