I am selling my Topping D50s - DAC, A50s headphone amplifier and P50 linear power supply. I have used them for a while, no issues whatsoever. I am the first and only owner and have the receipts for all three of them. I prefer to sell them as a stack, not separate items. The remote for the DAC works perfectly fine, as well. I am selling them because I am downgrading to a laptop and will purchase a small dongle for it. There are couple of small scratches because of the moving to a new place. I recently moved so don't know where are the original boxes but will package them well when I ship them. Everything works absolutely great and will provide a set of Canare RCA cables for free. I am also willing to cover the shipping and PayPal fees to USA. I think it is a good price for what are you getting. If you have questions send me a text here or PM me.