Features Stereo/parallel/bridge-mono mode User selectable input sensitivity – 0.775V and 1.4V RCA and XLR inputs; Speakon® and Binding Post outputs Two level controls, power switch, power LED, and six LEDs which indicate signal presence, clip and fault for each channel Protection against shorts, no-load, on/off thumps and radio-frequency interference1kHz Power ratings:4-ohm Stereo/ch 450W8-ohm Stereo/ch 330W8-ohm Bridge-Mono 900W