Kenwood KMF-X9000 User Manual

KMF-X9000

POWER AMPLIFIER

INSTRUCTION MANUAL

B60-5097-08 01 KO (Y,E) 0103

Introduction

Thank you for selecting our power amplifier as part of your high-fidelity system. We at KENWOOD are confident that your choice will bring you years of rich listening pleasure. Please take the time to read through this booklet carefully. It will help you to obtain the peak performance your power amplifier can deliver.

Features

Lucasfilm THX® Ultra Certification

THX® Ultra certification means that the KMF-X9000 meets Lucasfilm’s most stringent performance standards. This ensures superb sound quality and compatibility with other THX®certified products.

Operation Modes

The KMF-X9000 can be used in one of three different operation modes: 2-channel stereo, 2-channel mono, or Mono (bridged, or BTL), so it can fit into almost any system configuration and deliver all the power your speakers need.

12 V Relay Power Control

The KMF-X9000 can be powered on and off by an external 12 volt trigger signal, so it can be installed in a remote location.

Lucasfilm and THX are trademarks of Lucasfilm Ltd.

Before applying power

Caution: Read this page carefully to ensure safe operation.

Units are designed for operation as follows.

Europe and U.K. ....................... AC 230 V only

*Other countries ...................... AC 110-120 V/220 V-240 V switchable

*AC voltage selection

The AC voltage selector switch on the rear panel is set to the voltage that prevails in the area to which the unit is shipped. Before connecting the power cord to your AC outlet, make sure that the setting position of this switch matches your line voltage. If not, move the switch to match your line voltage with a screwdriver or similar tool.

Note:

Our warranty does not cover damage caused by excessive line voltage due to improper setting of the voltage selector switch.

Safety precautions

Caution: Read this page carefully to ensure safe operation.

WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO

RAIN OR MOISTURE.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” WITHIN THE PRODUCT’S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

Contents

Before applying power ............................................2

Safety precautions .................................................. 2

Unpacking ...................................................................... 3

Installation ......................................................................3

Notes on heat generation ......................................... 3

Connections ....................................................................3

Connections of speaker cords ................................... 3

2-Channel stereo configuration .................................. 4

Mono (bridged, or BTL) configuration ........................5

2-Channel mono configuration ................................... 6

12 V Relay power control ......................................... 6

Controls and indicators ................................................ 7

In case of difficulty .........................................................7

Operation to reset .................................................... 7

Troubleshooting ......................................................... 7

Specifications ................................................ Back cover

Unpacking

Unpack the unit carefully and make sure that all accessories are put aside so they will not be lost. Examine the unit for any possibility of shipping damage. If your unit is damaged or fails to operate, notify your dealer immediately. If your unit was shipped to you directly, notify the shipping company without delay. Only the consignee (the person

or company receiving the unit) can file a claim against the carrier for shipping damage. We recommend that you retain the original carton and packing materials for use should you transport or ship the unit in the future.

Accessories

Audio cord (1) Stereo mini-plug cord (1) Speaker terminal cover (1) (Except for Europe)

Installation

7 Notes on heat generation

• This unit incorporates a ventilation fan to process heat gen-

erated during operation. As the fan starts to rotate automatically when the internal temperature of this unit rises, avoid installing or setting which may prevent ventilation of the unit.

* Leave clearance of more than 10 cm (4 in.) to the left and

right, more than 50 cm (20 in.) above and more than 10 cm (4 in.) in front and rear of the unit. Also, do not close the surroundings of the unit tightly when it is mounted on a rack.

• The ventilation fan of this unit has been designed to intake

external air into the unit. If curtain or a piece of paper is attracted by the air intake, the internal temperature will rise and protection circuitry will be activated. In this case, the sound will not be output.

More than 50 cm (20 in.)

More than 10 cm (4 in.)

Connections

Make connection as shown below. When connecting the related system components, refer also to the instruction manuals of the related components. Do not plug in the power lead until all connections are completed.

7 Connections of speaker cords

For U.S.A.

CAUTION:

If the unit is used in the U.S.A., please read the supplement to the operating instruction entitled “Connection of speaker cords”.

Warning!

Particular attention must be given to making good electrical contact at the amplifier-output and speaker terminals. Poor or loose connections can cause sparking or burning at the terminals because of the very high power that the amplifier can deliver.

CAUTIONS:

• Connect all cords firmly. If connections are loose, there could be loss of sound or noise produced.

• Never attempt to connect two or more speaker cords to a single speaker terminal.

• Never short-circuit the + and - speaker cords.

• If the left and right speakers are connected inversely or if the speaker cords are connected with reversed polarity, the sound

becomes unnatural with ambiguous acoustic image positioning. Be sure to connect the speakers and speaker cords correctly.

Connections of speaker cords

1 Strip coating. 2 Loosen. 3 Insert. 4 Secure.

Connection of banana plugs (Except for some countries, like Singapore, etc.)

1 Secure. 2 Insert.

• Sound will not be heard if the speaker terminal is not fully secured.

+ 5 hidden pages