EPOS (formerly SENNHEISER) **GSX1000 2nd Edition Gaming Audio Amplifier (DAC)**. I opened it after purchase, but it's unused. Both the main unit and the box are in very clean condition with no noticeable scratches or stains. All original accessories are included. Highly recommended for gaming and improving the sound quality of your PC audio setup. Although it is unused, it has been in someone's possession, so please purchase only if you understand this. Immediate purchase is welcome.