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Kenwood KAC-8401 manual

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Table of contents for the manual

  • Page 1

    KA C-8401 © B64-2575-00/00 (MV) 4-CHANNEL POWER AMPLIFIER INSTR UCTION MANU AL KAC-8401(M) 1English 02.11.14 10:38 AM Page 1[...]

  • Page 2

    2 English Safety precautions To prevent injury or fire, take the following precautions: •W hen extending the ignition, battery, or ground wires, make sure to use automotive- grade wires or other wires with a 5 mm 2 (AWG 10) or more to prevent wire deterioration and damage to the wire coating. • To prevent a short circuit, never put or leave any[...]

  • Page 3

    English 3 Installation • Do not install in the below locations; (Unstable location, In a location that interferes with driving, In a location that gets wet, In a dusty location, In a place that gets hot, In a place that gets direct sunlight, In a location that gets hit by hot air) • Do not install the unit under the carpet. Otherwise heat build[...]

  • Page 4

    4 English Controls / Indicator 23 5 1 (W) 20 40 10 4 6 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. 1 INPUT SENSITIVITY contro[...]

  • Page 5

    English 5 6 FILTER FREQUENCY control When 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. 7 Power indicator When the power is turned on, the Power indicator lights. If the Power indicator does not light when the power is turned on, the protection fu[...]

  • Page 6

    6 English Connection 40 89 0 ! @ ^ $ % # 8 Fuse (40 A) If you can’t find the specified capacity fuse at your store etc., consult your Kenwood dealer. 9 Battery terminal 0 Ground terminal ! Power control terminal Controls the unit ON/OFF. Controls the unit power. Be sure to connect it with all the systems. @ Speaker output terminals • Stereo Con[...]

  • Page 7

    English 7 ■ Installation procedure Since there are large variety of settings and connections possible according to applications, read the instruction manual well to select the proper setting and connection. 1. Remove the ignition key and disconnect the negative - terminal of the battery to prevent short circuits. 2. Set the unit according to the [...]

  • Page 8

    $ ^ # GND # CENTER UNIT (CD receiver, etc.) RCA cable ground terminal 8 English RCA cable* Connection Power control wire (Blue/ White) ■ RCA cable or Speaker level input connection Genuine-accessory car stereo (No line output center unit etc.) ACC Battery Car fuse box White White/Black Gray Gray/Black Green Green/Black Purple Purple/Black A chann[...]

  • Page 9

    40 40 @ @ @ English 9 ■ Speaker wire connection Lead terminal* (Stereo Connections) A channel Left speaker A channel Right speaker B channel Right speaker B channel Left speaker (Bridged Connections) A channel Speaker (Bridged) B channel Speaker (Bridged) 40 90 ! Battery Ground wire* Battery wire* Protective Fuse* Lead terminal* ■ Power wire co[...]

  • Page 10

    10 English System examples 4 5 6 23 6 23 6 23 L R L R L R A A L R B B L R A L R B L R A L R B 4 5 4 5 4 5 4 5 L R L R A B L R L R A B L R L R A B L R L R A B CENTER UNIT CENTER UNIT ■ 4-channel system ■ 3-channel system Right speaker (Bridged) Left speaker (Bridged) ■ 2-channel system Subwoofer (L + R) (Bridged) CENTER UNIT CENTER UNIT CENTER[...]

  • Page 11

    English 11 L C C L C C L R L R L R L R A B 4 5 23 ■ Tri-mode CENTER UNIT (High pass) Subwoofer (L + R) (Bridged) (High pass) Subwoofer (L + R) (Bridged) ● Principle of Tri-mode Method of frequency band division using a coil and capacitor…in case of 6dB/oct. slope L C 0 dB -3 dB Coil (L): Passes low frequencies and blocks high frequencies. (Lo[...]

  • Page 12

    12 English Tr oubleshooting 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 POSSIBLE CAUSE SOLUTION No sound. (No sound from one side.) (Blown fuse.) The output level is too small (or too large)[...]