Kenwood KAC-648- Manuals

Page 2 - Cleaning the unit; CAUTION; Part name

2 Safety precautions Protection function This unit is equipped with a protection function for protecting this unit and your speakersfrom various accidents or problems that can occur.When the protection function is triggered, the Power indicator goes off and the amplifierstops operating. ■ Power indi...

Page 3 - Installation procedure; Installation

3 Installation procedure 1. Remove the ignition key and disconnect the negative - terminal of the battery to prevent short circuits. 2. Set the unit according to the intended usage.3. Connect the input and output cables of the units.4. Connect the speaker cables.5. Connect the power cable, power con...

Page 4 - • Stereo Connections:; or greater for each channel.; • Bridged Connections:; Controls

1 Fuse (25 A × 1) 2 Battery terminal 3 Ground terminal 4 Power control (REMOTE) terminal 5 Amplifier A speaker outputterminals 6 Amplifier B speaker outputterminals ❖ SPEAKER OUTPUT terminals • Stereo Connections: When you wish to use the unit as a stereoamplifier, stereo connections are used.The sp...

Page 5 - NOTE; System examples; CENTER UNIT

! LINE OUT terminal These jacks output respectively the signalsinput to amplifiers A and B. They alwaysoutput the stereo signals regardless of theposition of the OPERATION switch. @ RCA cable ground lead terminal # INPUT SENSITIVITY control Set this control according to the pre-outputlevel of the ce...

Page 6 - Principle of Tri-mode

L R L R L R LINE OUT A B BRIDGED BRIDGED INPUTSENSITIVITY(V) CONTROL OPERATION B CONTROL A (Lch) MONO MAX MIN 0.3 0.5 1.0 STEREO INPUT SENSITIVITY(V) MAX MIN 0.3 0.5 1.0 INPUT SELECTOR A A B LPF OFF FILTER HPF OPERATION MONO(Lch) STEREO LPF OFF FILTER HPF L R L L R L R L R L R L R LINE OUT A B C L C...

Page 7 - Connection; Power cable connection

7 Connection A B A B SPEAKER LEVEL INPUT R L LEFT RIGHT SPEAKER LEVEL INPUT LEFT BRIDGED RIGHT A B SPEAKER OUTPUT POWER IN FUSE(25A) BATT P.CON(REMOTE) GND 25 ■ Power cable connection To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery’spositive term...

Page 8 - Speakers cable connection; Speaker Selection

8 A B A B SPEAKER LEVEL INPUT R L LEFT RIGHT SPEAKER LEVEL INPUT LEFT BRIDGED RIGHT A B SPEAKER OUTPUT POWER IN FUSE(25A) BATT P.CON(REMOTE) GND 25 LE FT BRIDGED RIG HT A B BRIDGED R L A B A B SPEAKER LEVEL INPUT R L LEFT RIGHT SPEAKER LEVEL INPUT LEFT BRIDGED RIGHT A B SPEAKER OUTPUT POWER IN FUSE(...

Page 9 - RCA cable connection; Model

9 LINE OUT INPUTSENSITIVITY(V) CONTROL OPERATION 4 CHANNEL POWER AMPLIFIER L R B LPF OFF FILTER HPF B A (Lch) MONO MAX MIN 0.3 0.5 1.0 STEREO + INPUT SENSITIVITY(V) MAX MIN 0.3 0.5 1.0 CONTROL INPUT SELECTOR L A A A B GND MONO R LINE IN A B LPF OFF FILTER HPF OPERATION MONO(Lch) STEREO GN D ■ RCA ca...

Page 10 - car stereo; Speaker level input connection

10 A B A B SPEAKER LEVEL INPUT R L LEFT RIGHT SPEAKER LEVEL INPUT LEFT BRIDGED RIGHT A B SPEAKER OUTPUT POWER IN FUSE(25A) BATT P.CON(REMOTE) GND 25 LE FT RIG HT SPEAKER LEVEL INPUT • The genuine-accessory car stereo shall have a maximum power output of no more than 25 W.• Do not connect the speaker...

Page 11 - Troubleshooting Guide; PROBLEM

11 Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slightmisoperation or miswiring. Before calling service, first check the following table for possibleproblems. PROBLEM POSSIBLE CAUSE SOLUTION No sound.(No sound from one side.) The output level is ...

Page 12 - Specifications; Specifications subject to change without notice.; Rated Power Output (4; General

12 Specifications Specifications subject to change without notice. Audio Section Max Power Output (4 Ω ) 4 Channel Mode .................................................................................................................50 W × 4 3 Channel Mode ..............................................