Crown Extended Warranty To 6 YearsCrown’S Xti Family Of Amplifiers Defines The Standard For Portable Pa Systems With Unmatched Performance Technology And Power-To-The-People Affordability That Delivers The Goods Night After Night Without Even Breaking A Sweat. There’S No Debate — When You Choose Crown’S Xti Series You’Re Choosing One Of The Most Powerful And Efficient Amplifiers On The Market Today.Sensitivity (Volts Rms) For Full Rated Power At 4 Ohms 1.4V Frequency Response (At 1 Watt Into 4 Ohms 20Hz - 20 Khz) +0/&Ndash;1 Db Signal To Noise Ratio (Below Rated 1 Khz Power At 8 Ohms) A-Weighted 100 Db (103 Db In Xti 6000) Damping Factor (8 Ohm): 20 Hz To 400 Hz > 500 Input Stage Input Is Electronically Balanced And Employs Precision 1% Resistors. Ac Line Current (120Vac Amplifier Playing 1/8 Power Pink Noise Into 4 Ohms Per Ch) Xti 1000: 6.8A Xti 2000: 8.3A Xti 4000: 10.5A; At Idle Draws No More Than 30 Watts. Xti 6000: 15.3A; At Idle Draws No More Than 180 Watts. Crosstalk (Below Rated Power) 20 Hz To 1 Khz > 70 Db Input Impedance (Nominal) 20 Kilohms Balanced 10 Kilohms Unbalanced Load Impedance (Note: Safe With All Types Of Loads)StereoBridge Mono 2-8 Ohms (4-8 Ohms In Xti 1000 A1 100V Versions) 4-16 Ohms (8-16 Ohms In Xti 1000 A1 100V Versions) Voltage Gain (At 1 Khz 8 Ohm Rated Output) Xti 1000: 30.5 Db. Xti 2000: 32.9 Db. Xti 4000: 34.2 Db. Xti 6000: 37.1 Db. Maximum Input Signal +22 Dbu Typical Operating Temperature 0? C To 40? C At 95% Relative Humidity (Non-Condensing) Ac Line Voltage And Frequency Configurations Available (? 10%) 100V 120V 220-240V 50/60 Hz Ventilation Flow-Through Ventilation From Front To Back Cooling Heat Sinks And Proportional-Speed Fan Dimensions: Width Height Depth (Behind Mounting Surface) Eia Standard 19 In. W (Eia Rs-310-B) X 3.5 In. (8.9 Cm) H X12.25 In. (31.1Cm) D Xti 6000 Is 16.2 In. (41.15 Cm) D Net Weight Shipping Weight 18.5 Lb (8.4 Kg) 21.5 Lb (9.8 Kg) Xti 6000 Is 24.0 Lb (10.9 Kg) 30.0 Lb (13.6 Kg)FeaturesTypePower Amplifier Power Output500 Weight8.4 KgDimensions W X D X H482 X 311.15 X 88.9 Mm