I'm selling this for my brother. Does not have original box because it was sent to MTX to get new RCA inputs (loose RCA's). Works great, but has some marks in the chrome by the terminals. Other then that just a few scratches on the top, but functions just like new. I was still able to salvage the birth sheet, so you can see it puts out more then its rated power. You can also access the PDF on MTX's site for the Owners manual. Specifications: RMS Power 12.5 VDC Input Low Level Input Crossover(s) Hi / low @ 40Hz-200Hz - Variable Defeatable Compression Circuitry Thunder EQ RCA Output Variable Hi, Low or Full Range RMS Power 12.5 VDC 2 Ohm Load 350 w x 2 4 Ohm Load 175 w x 2 Bridged 4 Ohm Load 700 w Dynamic Power 14.4 VDC 2 Ohm Load 470 w x 2 4 Ohm Load 235 w x 2 Bridged 4 Ohm Load 940 w Dimensions (with ISO Feet) 17.8"x 9.75" x 2.1" 45.3cm x 24.8cm x 5.3cm References: DIYMA dwicker@gmail.com dawgdan aka Dan - ID12D4 v3 tn_audiophile@yahoo.com Tn_audiophile aka Jeremy - Arc Audio 5150xxk ptricks@cablelynx.com skibum aka Todd - Alpine CDA 9815 Sound Domain lasley1@hotmail.com FRITO aka Luke - Wiring Bring97@gmail.com REBring97 aka Austin - Diamond Audio D661s MJWillemsen@aol.com E36m aka Mark – Diamond Audio D661s – Sold Also my ebay acount is rickytheracer, you can email me on ebay to confirm its real. Asking $180 + shipping! Considering all offers!