Parasound Halo A 52 Solid State 5 Channel Amplifier THX Certified. Original owner. Very good condition. Only marks are sorbothane foot stains on the bottom of the unit. Product Information: http://www.parasound.com/vintage/a52.php Product Owner's Manual: http://www.parasound.com/pdfs/A52Manual.pdf Home Theater Product Review: http://hometheaterreview.com/parasound-halo-a52-five-channel-power-amplifier-reviewed/ Original Shipping Box, power cable, owners manual and 12 volt trigger cord.