Key Features D-Class Digital Power Amplifier Variable High & Low Pass Filter Speaker Level Input Signal Sensing Turn-On 2 Ohms Load Capability Cea-2006 Compliant Hi-Res Audio Compliant One Side Terminals For Smart Installation Screw-Type Terminals Amplifier Features Class D Amplifier Yes Full Range Digital Amplifier Yes Load Capability 2Ω Stable Rated Power Output (4Ω) 50W X 4 (4Ω) Rated Subwoofer Power Output (4Ω) 300W X 1 Rated Power Output 75W X 4 (2Ω) Rated Subwoofer Power Output (2Ω) 500W X 1 Bridged Power Output (4Ω) 150W X 2 High-Resolution Audio Certified Yes Cea-2006 Compliant Yes Low-Pass Filter Yes High-Pass Fliter Yes Switched Mode Power Supply Yes, With Power Mos-Fet Signal Sensing Turn-On Yes Speaker Level Input Yes Single Side Terminals Yes Die-Cast Aluminium Heat Sink Yes Removable Coverplate Yes Amplifier-Specifications Rated Power Output (4Ω, 14,4V) 50W X 4 (20Hz ~ 20000Hz, 1%Thd) Rated Subwoofer Power Output (4Ω, 14,4V) 300 W (20Hz - 200Hz, 1% Thd) Rated Power Output (2Ω, 14,4V) 75W X 4 (1000Hz, 1%Thd) Rated Subwoofer Power Output (2Ω, 14,4V) 500W (100Hz, 1% Thd) Rated Power Output (Cea-2006) 50Watts Rms X 4 At 4 Ohms And 1% Thd Rated Subwoofer Power Output (Cea-2006) 300W Low-Pass Filter 50~200Hz (-24Db/Oct) High-Pass Fliter 50~200Hz (12Db/Oct) Bass Boost Circuit 40Hz, 18Db (B-Channel) 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) 80Dba (Reference: 1 Watt Into 4 Ohms) Frequency Response (+0Db, -1Db) 20Hz ~ 50000Hz Freq. Resp. (+0Db, -3Db) (Sub) 20Hz ~ 200Hz Operating Voltage 14.4V (11V ～ 16V Allowable) Maximum Current Consumption 42A Installation Size (Wxhxd) 248 X 53 X 169 (Mm) Weight 2.1Kg