True, but I bought a shorter cable to replace the long cable that came with the original version of the HD 560s, and it appeared to be genuine Sennheiser. When I bought replacement earpads, I got them from an online shop in the UK. They were always listed as out of stock on the Sennheiser site. Thomann sells them, but they don't sell Sennheiser products to U.S. customers.I have reason to believe it is not only different pads.
One of the reasons is swapping pads between old and new and the Poyatu pads.
One thing is clear... the sound did change.
The new one sounds good with just a little 5kHz reduction (just like HD58X and HD660S needs)
I would not trust e-bay if I wanted original pads but rather buy them from Sennheiser directly or one of their official representatives.
These might be real, they might not be.

Sennheiser HD 559 Ear Pads
Ear Pads For Sennheiser HD-559 and 558 headphones, Sennheiser no. 572287, Package quantity: 1 Pair, Colour: Black
