Kenwood KAC-818 Instruction Manual
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Kenwood KAC-818 Instruction Manual

Kenwood KAC-818 Instruction Manual

Mono power amplifier
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KAC-818
MONO POWER AMPLIFIER
INSTRUCTION MANUAL
© B64-1355-00 (EM)

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Summary of Contents for Kenwood KAC-818

  • Page 1 KAC-818 MONO POWER AMPLIFIER INSTRUCTION MANUAL © B64-1355-00 (EM)

  • Page 2: Safety Precautions

    English NOTE • If you experience problems during installation, consult your Kenwood dealer. • If the unit does not seem to be working right, consult your Kenwood dealer. Cleaning the unit If the front panel gets dirty, turn off the power and wipe the panel with a dry silicon cloth or soft cloth.

  • Page 3: Installation Procedure

    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 center unit and this unit according to the required application. 5.
  • Page 4 Controls Operations of the following control and switches are required in accordance with the center unit and speakers connected with this unit. FUSE(20A) FUSE(20A) 1 2 3 15Hz 25Hz FREQUENCY(Hz) INFRASONIC 8 9 0 ! 1 FUSE (20 A 2) 2 Battery terminal 3 Ground terminal 4 Power control (REMOTE) terminal...

  • Page 5: Power Indicator

    NOTE For the pre-output level or the maximum power output, refer to the “Specifications” in the instruction manual of the center unit. 0 RCA cable ground lead terminal ! LINE IN terminal @ Speaker level input terminals Power indicator Power indicator: When the power is turned on, the Power indicator lights.
  • Page 6 Connection RCA cable connection 2CAUTION Do not connect cables and leads to both RCA cable input jacks and the speaker input terminals simultaneously, for this may cause malfunction or damage. Left input 15Hz 25Hz FREQUENCY(Hz) INFRASONIC RCA cable ground terminal When using an RCA cable with a ground lead attached, connect the ground lead to this terminal.
  • Page 7 Power and Speakers cable connection Distribute the speaker cables and sigma servo cables along the same paths. Round terminal (Small) Power control cable (Commercially available part) FUSE(20A) FUSE(20A) Terminal cover Battery cable (Commercially available part) Protective Fuse 2WARNING To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery’s positive terminal.
  • Page 8 Sigma servo feed back The sound reproduced through conventional amplifiers is distorted due to the counterelectromotive force produced in the oscillating system of the speaker. The counterelectromotive force is particularly high with the woofer which requires a large drive mass.The sigma servo connection reduces distortion caused by the counterelectromotive force by including the circuit up to the speaker terminals in the negative feedback loop.

  • Page 9: Troubleshooting Guide

    Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems. PROBLEM No sound. (No sound from one side.) The output level is too small (or too large).

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