Key Features D-Class Amplifier Circuit Signal Sensing Turn-On 1800 Watts Max Output Power 1Ω Load Capability Cooling Fan Built-In Low-Pass Filter Built-In Infrasonic Filter Bass Boost Function Amplifier Features Class D Amplifier Yes Load Capability 1Ω Stable Maximum Power Output 1800W Rated Power Output (4Ω) 500W X 1 (4Ω) Rated Power Output 900W X 1 (1Ω) Cea-2006 Compliant Yes Low-Pass Filter Yes Bass Boost Circuit Yes Infrasonic Filter Yes Phase Inverter 0°(Normal) / 180°(Reverse) Yes Dual Mono Drive Capability Yes Switched Mode Power Supply Yes, With Power Mos-Fet Cooling Fan Yes Power Indicator Yes Blue Illumination Yes Signal Sensing Turn-On Yes Protection Function Yes Line In 1 Rca (Gold Plated) Line Out 1 Rca (Gold Plated) Speaker Level Input Yes Single Side Terminals Yes Gold Plated Power & Speaker Terminals Yes Die-Cast Aluminium Heat Sink Yes Amplifier-Specifications Maximum Power Output (4Ω) 1800W X 1 Rated Power Output (4Ω, 14,4V) 500W X 1 (20Hz ~ 200Hz, 1%Thd) Rated Power Output (2Ω, 14,4V) 900W X 1 (100Hz, 1%Thd) Rated Power Output (1Ω, 14,4V) 900W X 1 (100Hz, 1%Thd) Rated Power Output (Cea-2006) 500Watts Rms X 1 At 4 Ohms And 1% Thd Low-Pass Filter 50~200Hz (24Db/Oct)(B-Channel) Bass Boost Circuit 0~18Db (Variable) Bass Boost Frequency 40Hz Infrasonic Filter 15/25Hz (18Db/Oct) Rca Input Sensitivity 0.2 ~ 5V Input Impedance 10KΩ Signal To Noise Ratio 100Db Signal To Noise Ratio (Cea-2006) 75Dba (Reference: 1 Watt Into 4 Ohms) Frequency Response (+0Db, -3Db) 5Hz ~ 200Hz Operating Voltage 14.4V (11V ～ 16V Allowable) Maximum Current Consumption 57A Dimensions (Wxhxd) 350 X 59 X 238(Mm), Weight 3.3Kg Unit Weight In Individual Package 3.75 Kg.