Only a few hours of use. It has  been tested and opened.  No cosmetic issues.

Crown’s XLi 800 power amplifier, as well as the rest of the XLi series amps, are defined by three words: powerful, inexpensive, and dependable. Whether you’re a musician, DJ, or live sound engineer, you’ll love what this incredibly tough amplifier can accomplish for your PA system. The 800-watt XLi 800 is ideal for mobile rigs, traditional venues, and places of worship alike, with user-selectable input sensitivity (.755V or 1.4V) and a variety of standard output connectors. And with over six decades of experience producing some of the most popular power amplifiers on the planet, you know you can rely on Crown and your XLi 800 no matter what.