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Kenwood KAC-728 User Manual

Kenwood KAC-728
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KAC-728
KAC-628
KAC-528
POWER AMPLIFIER
INSTRUCTION MANUAL
B64-1360-00 (EM)
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Kenwood KAC-728 Specifications

KAC-728

Power Output IconPower Output
max power output (4 Ω)200 W × 2
bridge power output600 W × 1
rated power output (4 Ω)100 W × 2
rated power output (2 Ω)150 W × 2
Audio Specifications IconAudio Specifications
frequency response5 Hz ~ 50 kHz
signal to noise ratio100 dB
sensitivity (max)0.2 V
sensitivity (min)5.0 V
input impedance10 kΩ
low pass filter80 Hz
General Specifications IconGeneral Specifications
operating voltage14.4 V
current consumption28 A
dimensions220 × 56.1 × 300 mm
weight3.6 kg

KAC-628

Power Output IconPower Output
max power output (4 Ω)100 W × 2
bridge power output300 W × 1
rated power output (4 Ω)50 W × 2
rated power output (2 Ω)75 W × 2
Audio Specifications IconAudio Specifications
frequency response10 Hz ~ 45 kHz
signal to noise ratio100 dB
sensitivity (max)0.15 V
sensitivity (min)4.0 V
input impedance10 kΩ
low pass filter80 Hz
General Specifications IconGeneral Specifications
operating voltage14.4 V
current consumption19 A
dimensions220 × 56.1 × 228 mm
weight2.7 kg

KAC-528

Power Output IconPower Output
max power output (4 Ω)70 W × 2
bridge power output200 W × 1
rated power output (4 Ω)35 W × 2
rated power output (2 Ω)50 W × 2
Audio Specifications IconAudio Specifications
frequency response5 Hz ~ 50 kHz
signal to noise ratio100 dB
sensitivity (max)0.2 V
sensitivity (min)5.0 V
input impedance10 kΩ
low pass filter80 Hz
General Specifications IconGeneral Specifications
operating voltage14.4 V
current consumption16 A
dimensions220 × 55 × 160 mm
weight1.8 kg

Summary

Safety and Operation

Safety Warnings and Cautions

Key precautions to prevent injury, fire, and unit damage.

Maintenance and Accessories

Guidance on cleaning the unit and a list of included accessories.

Protection Function

Power Indicator Status

Explains the power indicator and its role in protection.

Trigger Conditions

Lists scenarios that activate the protection circuit.

Installation Procedure

Installation Steps

Detailed sequence for installing the power amplifier.

Installation Safety

Critical safety notes during the installation process.

Controls and Terminals

Filter and Operation Switches

Adjusts audio filtering (HPF/LPF) and amplification modes (Stereo/Mono).

Input and Sensitivity Controls

Manages audio signal input and sensitivity levels.

Connection Terminals Overview

Interfaces for power, speakers, RCA, and remote connections.

Connection Methods

RCA Cable Connection

Steps and diagrams for connecting via RCA cables.

Speaker Level Input Connection

Instructions for connecting using speaker level inputs.

Connection Safety Precautions

Important safety warnings applicable to all connection types.

Speaker Wiring and Selection

Speaker Connection Types

Guides for stereo and bridged speaker wiring configurations.

Speaker Impedance and Power

Recommendations for speaker impedance and power ratings.

Power Cable Connection

Wiring Diagram and Steps

Illustrates and explains the power cable connection process.

Wiring Precautions

Essential wiring advice to prevent noise and ensure safety.

Installation Guidelines

Fuse and Wiring Specifications

Specifies fuses and wire cross-sections for each amplifier model.

Mounting and Placement

Advice on selecting installation location and using extension cables.

Installation Safety

Critical warnings about installation risks and vehicle safety.

System Examples

Stereo and Subwoofer Setups

Demonstrates various speaker and subwoofer connection configurations.

Tri-mode Operation and Crossover

Explains tri-mode setup, frequency division principles, and safety.

Troubleshooting Guide

No Sound Issues

Solutions for when no sound or sound from only one side is present.

Output Level Problems

Troubleshooting steps for incorrect audio output levels.

Sound Distortion

Guidance for resolving issues with distorted sound quality.

Specifications

Audio Performance Details

Technical data on power output, frequency response, and input impedance.

General Unit Information

Specs on operating voltage, current draw, dimensions, and weight.

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