Designed for musicians, DJs, entertainers, houses of worship, discos, and other venues, the Crown XLi 3500 Stereo Power Amplifier feature both RCA and XLR inputs as well as Speakon and binding post outputs. The amplifier includes a user selectable input sensitivity of 0.755V or 1.4V, stereo/parallel-bridge-mono modes, power/fault/signal presence/clip LED indicators, forced air cooling, and protection against shorts, no-load, on/off thumps, and interference from radio frequencies in the environment. Drawing from over six decades of experience in building amplifiers, the unit is capable of delivering 1350W per channel at 4 ohms, 1000W per channel at 8 ohms, and 2700W at 8 ohms in bridged-mono mode.. Input 2x electronically balanced XLR-3F 2x electronically balanced RCA Output 2x binding post 2x Speakon outputs THD 10 V/us Voltage Gain 36 dB Damping Factor 8 Ohm, 10 to 400 Hz: > 200 Signal to Noise Ratio > 100 dB Crosstalk Below rated power: -75 dB 20 to 1,000 Hz:-59 dB Input Sensitivity For full rated power at 8 ohms: 0.775 or 1.4 V Input Impedance Nominal balanced: 20 kilOhm Unbalanced: 10 kilOhm AC Line Power (+10%) 120V~60 Hz 220V~50/60 Hz 230-240V~50/60 Hz IEC 15 A Dimensions 19 x 3.5 x 14.4" (48.3 x 8.9 x 36.6 cm) Weight 43.0 lb (19.5 kg)