4ControlsThis is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier isreferred to as amplifier A and the other is amplifier B. This unit is compatible witha large variety of systems by combining the switches and functions described inthe following.LINE OUTINPUTSENSITIVITY(V)CONTROLFREQUENCY(Hz)OPERATION4 CHANNELPOWER AMPLIFIERLRBLPFOFFFILTERHPFBAMONO(Lch)MAXMIN0.30.51.020050STEREOL + R+200150100HPFLPF508080100 150CONTROL INPUT SELECTORLAAA BFREQUENCY(Hz)LPFOFFFILTERHPF20050 200150100HPFLPF508080100 150INPUTSENSITIVITY(V)MAXMIN0.30.51.0OPERATIONGNDMONOMONO(Lch)STEREOL + RRLINE INA B@# $!098% ^ABABSPEAKER LEVEL INPUTRLLEFT RIGHTSPEAKER LEVEL INPUTLEFTBRIDGEDRIGHTABABSPEAKER OUTPUTBRIDGEDRLPOWER INFUSE(30A)BATT P.CON(REMOTE)GND1 5234 6 7Amplifier AAmplifier B1Fuse (30 A)2Battery terminal3Ground terminal4Power control (REMOTE) terminal5Amplifier A speaker output terminals6Amplifier B speaker output terminals7Speaker level input terminals8FREQUENCY controlWhen the FILTER switch is set to the HPF (High-Pass Filter) or LPF (Low-Pass Filter) position,the threshold frequency can be adjusted with this control.9FILTER switchHigh-pass or low-pass filtering can be applied to the speaker output according to the settingof this switch.0OPERATION switchThe amplification methods of the signals input to amplifiers A and B can be selectedindependently according to the setting of this switch.