I was going to purchase the Audio-Technica ATH-M50, because I didn't want a super long cord but I was wondering if there was a difference in the sound quality of the striaght cord and the coiled cord?

I'm thinking about buying the Beats because I heard they have a really good sound quality but, while I was looking up information on the internet I heard about the M50's. I was wondering which of these I should purchase if I want them to be portable but I also want really good sound quality.