Lohb
Headphoneus Supremus
Asymmetrical ear holes in the pad tend to break up any incidental pad back wave or something similar to that.
BMF the T50 modder/objective measurements guy mentioned it once. So if you have a perfect oval or circle it can maybe cause less than optimum SQ.
BMF the T50 modder/objective measurements guy mentioned it once. So if you have a perfect oval or circle it can maybe cause less than optimum SQ.