If you are looking at this listing you probably already know all about this awesome little amp. I have been using it on my desktop for about a year and love it. The only reason I am selling it is because I have outfitted the casual listening areas in my house with Sonos and I have no use for the Amp. I purchased new November of 2014 and the amp was always kept protected on my desktop and is in like new condition. All original packing materials, manuals, and accessories are included.