The XLI Series of power amplifiers from Crown? represents a new era in affordable quality power amplification. All four models in the series are powerful rugged and reliable. Features include RCA and XLR inputs user selectable input sensitivity of 0.755V or 1.4V Speakon? and binding post outputs stereo/parallel/bridge-mono mode power/fault/signal presence/clip indicators forced-air cooling; and protection against shorts no-load on/off thumps and radio-frequency interference. Stereo Power (per channel): 300W @ 4 Ohms / 200W @ 8 Ohms Bridge Mono Power: 600W @ 8 Ohms.