579/599 dont sit on my ear lobes but 58X do, which makes the higher clamping force an even bigger issue for me. The force will decrease over time after stretching but the ear pads are not getting any bigger...
I measured the ear pad hole sizes and there seems to be a big difference.
Sennheiser HD579/599:
41mm (inside width)
70mm (inside height)
Sennheiser HD58X:
35mm (inside width)
60mm (inside height)
22mm (inside depth)
From what I gather 6' series are almost same size as 598/599/579. Do HD6XX/6' series ear pads fit perfectly on 58X? I have measured the ear frame size of 58X is 111mm (where the ear pad goes) and ear pad external height is 104mm (picture attached). Can anyone please take their 6' series ear pads out and measure them ?