This is a great detailed review. 

Thanks for taking the time to read it Jonkai!

awesome review... loved it !!  

GrindedDown... can you tell something about the bluetooth version of 1A (1ABT) comparing with these ? Is there some effect in sound quality... I am willing to buy bluetooth but can't make my move leaving 1A behind... no battery, little light... and moreover i will not end up getting expensive wired bluetooth headphones after a year or two... what's your say on this ?