Just over a month old, bought to try out but my current stereo DAC is preferred. Used for probably 2 hours and the 7.1 Surround is the best I have ever tried. Paid close to $350 for it, in the original box with all cables etc incl. Still has the vinyl over the screen. $220 FIRM. Meet the Sennheiser GSX 1200 PRO The GSX 1200 PRO audio amplifier was designed for the competitive eSports arena. Sennheiser's Binaural Rendering Engine delivers an exceptional 7.1 surround sound experience, with best-in-class spatial awareness. The GSX 1200 PRO provides precise control of both game and communication sound with separate adjustments and the ability to switch between headphones and speakers without unplugging cables. This system is tournament-ready with connection capability of up to 8 GSX 1200 PROs together for hard-wired lag-free communication with control of inbound and outbound chat. Experience Surround Sound at a new level on PC and Mac with the GSX 1200 PRO!