Hi, Up for sale is the Stax SRM-001 portable amp and iem system. They're made in Japan. They were purchased new by me directly from Yodobashi Camera in Tokyo for approximately USD $230. They're in mint condition with max. 20 hours use. They are incredibly liquid. I think they'd be perfect for desktop use. Also includes Oyaide interconnect (doesn't include Sony DAP Selling for USD $170 which includes free express EMS shipping from Tokyo. It takes around 3-5 days to arrive in USA. If you have any questions, just send me a PM! Thanks for looking!