Recently the beloved Audio Technica team released a new revamp of their famous M series headphones thus ushering in a new era of affordable professional quality studio headphones. The new X line of headphones features 2 with replaceable cables which is something people in the headphone community have been asking about for a while. While the M30x may not have the new cable set up, it does have a few things the M30 do NOT. Even upon first look and first impressions once you take each out of the packaging, the differences are night and day. Lets look at the key factors that we feel differentiate these two headphones, and then we will break down why they are worth owning.