Key Features Class D 4-Channel Power Amplifier Cea-2006 Compliant Hi-Res Audio Compliant 75W X 4 Rms Power Output Frequency Response 20Hz - 50Khz Variable High-Pass Filter Variable Low-Pass Filter Speaker Level Input Signal Sensing Turn-On Wired Remote Included For B-Channel Amplifier Features Class D Amplifier Yes Load Capability 2Ω Stable Rated Power Output (4Ω) 75W X 4 (4Ω) Rated Power Output 75W X 2 + 200W X 1 (4Ω) Bridged Power Output (4Ω) 200W X 2 High-Resolution Audio Certified Yes Cea-2006 Compliant Yes Low-Pass Filter Yes High-Pass Fliter Yes Switched Mode Power Supply Yes Power Indicator Multifunctional Signal Sensing Turn-On Yes Protection Function Yes Line In 4 Rca / Speaker Level Input Selector A/Ab Speaker Level Input Via Line-In (Rca) A-Ch & B-Ch Single Side Terminals Yes Die-Cast Aluminium Heat Sink Yes Yes Amplifier-Specifications Rated Power Output (4Ω, 14,4V) 75W X 4 (20Hz ~ 20000Hz, 1%Thd) Rated Power Output (2Ω, 14,4V) 100W X 4 (1000Hz, 1%Thd) Rated Power Output (4Ω, 14,4V) 200W X 2 (1000Hz, 1%Thd) Rated Power Output (Cea-2006) 75Watts Rms X 4 At 4 Ohms And 1% Thd Low-Pass Filter 50~200Hz (-12Db/Oct) High-Pass Fliter 50~200Hz & 2,5~10Khz (-12Db/Oct) Rca Input Sensitivity 0.2 ~ 5V Speaker Level Input Sensitivity 4 ~ 12V Input Impedance 10KΩ Signal To Noise Ratio 100Db Signal To Noise Ratio (Cea-2006) 76Dba (Reference: 1 Watt Into 4 Ohms) Frequency Response (+0Db, -3Db) 20Hz ~ 50000Hz Frequency Response (+0Db, -1Db) 20Hz ~ 40000Hz Operating Voltage 14.4V (11V ～ 16V Allowable) Maximum Current Consumption 37A Dimensions (Wxhxd) 220 X 35 X 169(Mm), Weight 1.5Kg