Kenwood KAC-648 User Manual - Page 4

Controls This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to as amplifier A and the other is amplifier B. This unit is compatible with a large variety of systems by combining the switches and functions described in the following. 5 25 FUSE(25A) POWER IN SPEAKER OUTPUT GND A BATT P.CON(REMOTE) BRIDGED LEFT RIGHT B SPEAKER LEVEL INPUT LEFT RIGHT A B SPEAKER LEVEL INPUT A B L R 1 234 6 7 8 9 0! FILTER OPERATION OFF HPF LPF STEREO MONO(Lch) 1.0 INPUT SELECTOR AB A 0.5 MONO L GND 0.3 MIN MAX INPUT SENSITIVITY(V) R CONTROL A LINE IN A B LINE OUT A+B L OPERATION (Lch) STEREO MONO 1.0 FILTER OFF HPF LPF 0.5 0.3 MIN MAX INPUT R SENSITIVITY(V) CONTROL B 4 CHANNEL POWER AMPLIFIER mA @ mA # $ % 1 Fuse (25 A × 1) 2 Battery terminal 3 Ground terminal 4 Power control (REMOTE) terminal 5 Amplifier A speaker output terminals 6 Amplifier B speaker output terminals y SPEAKER OUTPUT terminals • Stereo Connections: When you wish to use the unit as a stereo amplifier, stereo connections are used. The speakers to be connected should have an impedance of 2Ω or greater. When multiple speakers are to be connected, ensure that the combined impedance is 2Ω or greater for each channel. • Bridged Connections: When you wish to use the unit as a highoutput monaural amplifier, bridged connections are used. (Make connections to the LEFT channel (+) and the RIGHT channel (-) SPEAKER OUTPUT terminals.) The speakers to be connected should have an impedance of 4Ω or greater. When multiple speakers are to be connected, ensure that the combined impedance is 4Ω or greater. 2CAUTION The rated input of the speakers should be no less than the maximum output of the amplifier. Otherwise malfunction may result. 7 Speaker level input terminals 8 INPUT SELECTOR switch This switch selects the input method of the signals to be amplified by amplifiers A and B. AB A • A B position: INPUT SELECTOR Amplifies both of the signals input to amplifiers A and B. • A position: Amplifies only signal input amplifier A with both amplifiers A and B. 9 Amplifier A LINE IN terminal 0 Amplifier B LINE IN terminal 4