Crown XLi 2500 Two Channel Power Amplifier With Cables Includes: Crown XLi2500 Power Amp, USA Power Plug, Manual, (2) Speakon to 1/4" Cable Stereo/parallel/bridge-mono mode User selectable input sensitivity - 0.775V and 1.4V Electronically balanced RCA & XLR inputs; binding post and Speakon outputs Efficient forced-air cooling prevents excessive thermal buildup