I own and use STAX 009s and Audeze LCD-XC headphones. I recommend both highly. Two of my favorite phones from the early years are STAX Lambda Signatures and Yamaha YHD-1. The Yamahas were made of some cheap plastic and broke easily, but they did sound much better than their modest cost would indicate. I recently sold my vintage Lambdas, along with a tube STAX driver unit. I hated to see them go, but...
