Kenwood KAC-526 User Manual

POWER AMPLIFIER
KAC-
INSTRUCTION MANUAL
KENWOOD CORPORATION
©B64-0781-00 (K)(MC)
Take the time to read through this instruction manual.
Familiarity with installation and operation procedures will help you obtain the best
performance from your new power amplifier.
For your records
Record the serial number, found on the back of the unit, in the spaces.designated on the warranty card,
and in the space provided below. Refer to .the model and serial numbers whenever you call upon your
KENWOOD dealer for information or service on the product.
Model KAC-526 SeriaJ_number_;_
Safety preCMutiom
I awabwingI
Take the following precautions to prevent
fire and avoid personal injury:
• When extending the battery cable, or ground
cable, use 3mm* (AWG12) or larger automotive
grade cable to avoid cable deterioration or
damage to the covering.
• Check that no metal objects (coins, tools, etc.)
are left inside the unit to avoid short circuits.
• If you smell or see smoke, turn the power off
immediately and consult your Kenwood dealer.
• Do not touch the unit during use because the
surface of tfie unit becomes hot and may
cause burns if touched.
I ACAUTiOin
Take the following precautions to keep
the unit in proper working order.
• Be sure the unit is connected to a 12V DC
power supply with a negative ground
connection.
• Do not open the top or bottom cover.
• Do not install the unit in places it is exposed to
direct sunlight, high heat or humidity, water
may splash over it, or dust exists.
f NOTE I
• If you have difficulty in installing this unit in
your vehicle, contact your Kenwood dealer.
Cleaning the unit
• If the surface is dirty, wipe it clean with a
silicon cloth or soft dry cloth with the power
off.
I ACAUTiOin
Do not use hard cloths or paint thinner, alcohol, or
other volatile solvents. These may damage
external surfaces or remove indicator characters.
FCC WARNING
• This equipment may generate or use radio
frequency energy. Changes or modifications to
this equipment may cause harmful interference
unless the modifications are expressly
approved in the instruction manual. The user
could lose the authority to operate this
equipment if an unauthorized change or
modification is made.
Accessories
Part name
External
View
Number of
Items
Self-tapping
screws
(04 16mm)
4
Terminal cover
(Power
terminal
1

Kenwood KAC-526 Specifications

General

Brand	Kenwood
Model	KAC-526
Category	Car Amplifier
Language	English

Summary

Safety Precautions

General Safety Warnings

Precautions to prevent fire and avoid personal injury during installation and operation.

Operational Safety Precautions

Precautions to keep the unit in proper working order and avoid damage.

Cleaning the Unit

Instructions for cleaning the unit's surface using appropriate materials.

Cleaning Cautions

Warnings against using harsh chemicals or solvents that can damage the unit's finish.

FCC Warning

Information regarding potential radio frequency energy and user modifications.

Accessories Included

Controls Overview

RCA Cable Ground Lead Terminal

Terminal for connecting the ground lead of an RCA cable.

Operation Switch

Switch to select amplification method: STEREO or MONO (Lch).

Input Sensitivity Control

Control to set sensitivity based on pre-output level or max power output.

Line In Terminal

Input terminal for audio signals via RCA cables.

Speaker Level Input Terminal

Input terminal for speaker level signals.

Fuse (15A)

Protective fuse for the unit, rated at 15 Amperes.

Battery Terminal

Connection point for the positive (+) power supply from the battery.

Ground Terminal

Connection point for the negative (-) power supply ground.

Power Control (Remote) Terminal

Terminal for the remote turn-on signal from the source unit.

Speaker Output Terminals

Terminals for connecting speakers to the amplifier output.

Protection Function

Power Indicator

Indicator light that shows when the unit is powered on.

Protection Activation Conditions

Situations triggering the protection function, such as short circuits or overheating.

Installation Procedure

Installation Fuse Cautions

Advice on checking cables for shorts and replacing blown fuses.

Installation Location Cautions

Warning against installing the unit under carpets due to heat build-up.

Heat Dissipation Installation

Guidance on installing the unit in a location that allows for efficient heat dissipation.

Final Installation Checks

Ensuring proper operation of vehicle electrical equipment after installation.

Tri-mode Operation

Principle of Tri-mode

Explanation of frequency band division using coils and capacitors in tri-mode.

Coil and Capacitor Calculation

Formulas and examples for calculating required coil and capacitor values.

Tri-mode System Example

Diagram illustrating the tri-mode configuration with speakers and subwoofer.

Bridged Connection Caution

Warning regarding minimum speaker impedance (4 ohms) for bridged connections.

System Connection

RCA Cable Ground Lead Terminal

Connecting the ground lead of an RCA cable to the specified terminal.

Power Terminal Connections

Connecting battery and ground cables through the terminal cover.

Speaker Output Terminals

Connecting speaker output cables to the appropriate terminals.

Noise Filter Recommendation

Suggestion to use a line noise filter for buzzing noise during engine operation.

Wiring Fire Prevention

Warning to install a fusible link or breaker near the battery for fire prevention.

Connection with Genuine-Accessory Car Stereo

Speaker Level Input Terminal

Connecting the speaker level input cable to the designated terminal.

Accessory Car Stereo Power Limit

Limitation of genuine-accessory car stereo power output to 25W.

Input Connection Conflict Caution

Warning against simultaneous RCA and speaker input connections.

Power Control Lead Connection

Connecting the power control lead to the ignition key switch (ACC line).

System Examples

Demonstrations of various audio system configurations using the unit.

Troubleshooting Guide

No Sound Issue

Troubleshooting steps for when no sound or sound from one side is present.

Output Level Adjustment

Guidance for resolving issues with output level being too small or too large.

Sound Quality Issues

Troubleshooting distorted sound due to incorrect connections or pinched cables.

Specifications

Audio Section Specifications

Detailed technical specifications for audio output and response.

General Specifications

Technical details including operating voltage, current consumption, and weight.