Hello I was wondering if I could get some recommendations for the HP listed above ,it seems like this detachable cables are pretty hard to find due to different connectors ,most cable makers only have Sennheiser connectors (different polarity) and don't fit properly I found some aftermarket...

Hi ,I just purchased this cable for my HD58x and I'm looking for 3.5 or 6.3mm SE to 2.5mm balanced adapter so I can use this cable with all my single ended gear ,any idea where I can get it ? It comes with 2.5mm balanced plug https://www.ebay.com/itm/222948192204

I need your expertise guys I'm about to order new cans and I want your opinion ..which one would you choose  HE-400 or HD-650 I like tube rolling and have Aune T1 ,I listen to a lot of different music and already have  DT880-250,detail and bass is what I'm after