53SpecificationsSX1200 SX1800 SX2400 SX2800 SX3200Rated Output PowerStereo both channel driven8 ohms 300 Watts 400 Watts 500 Watts 700 Watts 800 Watts4 ohms 450 Watts 600 Watts 750 Watts 900 Watts 1100 WattsBridged mono8 ohms 900 Watts 1200 Watts 1500 Watts 1800 Watts 2200 WattsSignal to Noise Ratio (20Hz-20k) 102dB 102dB 104dB 104dB 104dBDistortion(SMPTE-IM) 0.05% 0.01% 0.04% 0.04% 0.04%Input sensitivity @8ohms 1.24V(4dBu) 1.24V(4dBu) 1.24V(4dBu) 1.24V(4dBu) 1.24V(4dBu)Voltage Gain 32dB 33dB 34dB 35dB 35dBOutput Circuitry AB AB H H HCurrent Consumption(115VAC)@1/8 rated power 4ohms 6.3A 7.2A 7A 8.5A 8.5A@1/3 rated power 4ohms 9.5A 12A 14.5A 17A 17A@ rated power 4ohms, max. 15.5A 19.5A 26A 32ADistortion(typical @4 ohms)20Hz-20kHz,10dB below rated power 0.01% 0.01% 0.03% 0.03% 0.03%IkHz,rated power 0.1% 0.1% 0.1% 0.1% 0.1%Frequency Response @8ohms 1Watt 0/-0.5dB:20Hz-20kHz,0/-3dB:5Hz-60kHzDamping Factor(400Hz) 280 280 350 350 350Input Impedance 15kohm Unbalanced,30kohm BalancedInput Clipping 10Vrms(22dBu)Cooling Continuously variable speed, fan forced airConnectors (each channel)Input: Active balanced combo and1/4”(6.3mm)TRSOutput: 5-way Binding post and SpeakonsControls AC power switch,Channel 1 and 2 volumeIndicators Power on(blue),Protection(amber)Signal(green) for each Ch.,Peak(red) for each Ch.Protection Short circuit,Thermal,Current limit,DC offset,Current inrush,RFprotection, Turn on/Turn off mutingPower Requirements 100/115/220/230/240 VAC, 50/60 HzDimensions(WXHXD) 19”(483mm)X3.5”(89mm)X16”(408mm)rack mounting to rearsupportNet Weight 33lb.(14.8kg) 37lb.(16,5kg) 40lb.(18kg) 47lb.(21.1kg) 48lb.(21.1kg)Specifications are subject to change without notice.