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KMF-X9000
POWER AMPLIFIER
INSTRUCTION MANUAL
B60-5097-08 01 KO (Y,E) 0103
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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
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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.)
More than
10 cm (4 in.)
More than
10 cm (4 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.
3
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7 2-Channel stereo configuration
This is the ‘standard’ stereo operation mode, with the amplifier driving 2 speakers in stereo (such as the Surround Back Left and
Surround Back Right speakers in a THX Surround EX® home theater system). The amplifier delivers its rated stereo power output
into each speaker.
1 Make sure that the KMF-X9000’s power cord is unplugged from the wall outlet before making any connections.
2 According to the speakers to be used, set the speaker impedance selector switch as follows:
• For 2 Ω speakers: Set the 2Ω (STEREO)/6Ω OVER switch to 2Ω (STEREO) and 6Ω OVER/2Ω switch to 2Ω.
• For 6-16 Ω speakers: Set the 2Ω (STEREO)/6Ω OVER switch to 6Ω OVER and 6Ω OVER/2Ω switch to 6Ω OVER.
3 Connect the amplifier as shown in the diagram.
Preamplifier
* In the case of 2 Ω
Audio cord (supplied)
In the case of 6 Ω
Speakers
(2Ω-16Ω)
Right
(R SURROUND
BACK)
Left
(L SURROUND
BACK)
KRF-X9995D
DTS-ES
DISCRETE 6.1MATRIX 6.1 NEO : 6
PRO LOGIC
CD 2 / TAPE 2
SURROUND
CLIP
96kfs
MONITOR
BACK
INDICATOR
Stereo mini-plug cord (supplied)
For 12 V RELAY CONTROL, see page 6.
ON : +12 V
OFF :OPEN (or GND)
To wall AC outlet
NC
GND
For RELAY CONTROL connection to KRF-X9995D or other
compatible unit, see page 6.
* If you connect more than one pair of speakers to the KMF-X9000, move the 2Ω (STEREO)/6Ω OVER (THX) switch to the 2Ω
(STEREO) position. The amplifier’s performance is not THX®-certified when the switch is set in the 2Ω (STEREO) position.
Now you can plug the power cord of this unit into the AC outlet!
CAUTION:
Before reconnecting a speaker cord or switching a selector switch, turn OFF the power and unplug the power
cord to avoid malfunctions or damage to the unit.
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7 Mono (bridged, or BTL) configuration
In this configuration, the KMF-X9000’s two individual channels operate together to drive a single speaker (such as a subwoofer) in
mono. This allows the amplifier to deliver more than double the power of one of its channels to the speaker.
1 Make sure that the KMF-X9000’s power cord is unplugged from the wall outlet before making any connections.
2 According to the speakers to be used, set the speaker impedance selector switch as follows:
• For 6-16 Ω speakers: Set the 2Ω (STEREO)/6Ω OVER switch to 6Ω OVER and 6Ω OVER/2Ω switch to 2Ω.
3 Connect the amplifier as shown in the diagram.
• Make sure to connect the audio input cable to the MONO/BTL input.
Except for Europe
Note: Since bridged operation produces enough output power to pose a small risk of electrical shock from the speaker termi-
nals, please attach the terminal cover as shown in the diagram below:
When a monaural
pre-out signal is to
be connected, be
sure to connect it to
the MONO/BTL
terminal.
KRF-X9995D
DTS-ES
DISCRETE 6.1 MATRIX 6.1 NEO : 6
PRO LOGIC
Audio cord (not supplied)
CD 2 / TAPE 2
SURROUND
CLIP
96kfs
MONITOR
BACK
INDICATOR
Stereo mini-plug cord (supplied)
For 12 V RELAY CONTROL, see page 6.
Subwoofers
(6Ω-16Ω)
Except for Europe
Mount the supplied
speaker terminal cover
using the two screws that
are attached to the unit.
To wall AC
outlet
Now you can plug the power cord of this unit into the AC outlet!
CAUTION:
Before reconnecting a speaker cord or switching a selector switch, turn OFF the power and unplug the power
cord to avoid malfunctions or damage to the unit.
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7 2-Channel mono configuration
In this configuration you can connect 2 speakers (such as 2 subwoofers) to the KMF-X9000 and send a single preamp signal (such as a
mono subwoofer output) to both speakers without using a Y-adapter. The amplifier delivers its rated stereo power output to each speaker.
Make sure that the KMF-X9000’s power cord is unplugged from the wall outlet before making any connections.
1
According to the speakers to be used, set the speaker impedance selector switch as follows:
2
• For 2 Ω speakers: Set the 2Ω (STEREO)/6Ω OVER switch to 2Ω (STEREO) and 6Ω OVER/2Ω switch to 2Ω.
• For 6-16 Ω speakers: Set the 2Ω (STEREO)/6Ω OVER switch to 6Ω OVER and 6Ω OVER/2Ω switch to 6Ω OVER.
Connect the amplifier as shown in the diagram.
3
• Make sure to connect the audio input cable to the MONO/BTL input.
KRF-X9995D
When a monaural preout signal is to be
connected, be sure to
connect it to the
MONO/BTL terminal.
* In the case of 2 Ω In the case of 6 Ω
* If you connect more than one pair of speakers to the KMF-X9000, move the 2Ω (STEREO)/6Ω OVER (THX) switch to the 2Ω
(STEREO) position. The amplifier’s performance is not THX®-certified when the switch is set in the 2Ω (STEREO) position.
Audio cord (not supplied)
Subwoofers
(2Ω-16Ω)
(Right)
Stereo mini-plug cord (supplied)
For 12 V RELAY CONTROL, see below.
To wall AC outlet
(Left)
Now you can plug the power cord of this unit into the AC outlet!
CAUTION:
Before reconnecting a speaker cord or switching a selector switch, turn OFF the power and unplug the power
cord to avoid malfunctions or damage to the unit.
7 12 V Relay power control
The KMF-X9000 can be powered on and off by a 12 volt trigger signal from a compatible component (such as the Kenwood
KRF-X9995D receiver).
1 Make sure that the KMF-X9000’s power cord is unplugged from the wall outlet before making any connections.
2 Connect the supplied mini cable to the KMF-X9000’s RELAY CONTROL input and the 12 V relay control output of the
KRF-X9995D or other compatible component.
• When the KMF-X9000’s POWER switch is turned ON, the amplifier will remain in the STANDBY mode (the STANDBY
indicator will be lit) as long as there is no signal at the RELAY CONTROL input.
• The KMF-X9000 will automatically turn ON when a 12 V signal is applied to the RELAY CONTROL input.
•
When the 12 V signal is removed from the KMF-X9000’s RELAY CONTROL input, the amplifier will go back into the STANDBY mode.
• If there is no cable connected to the KMF-X9000’s RELAY CONTROL input, the amplifier’s STANDBY indicator will not
function, and its ON/OFF status will be controlled by the POWER switch.
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Controls and indicators
This unit has the following switch and indicators.
The power indicator and the STANDBY indicator will let you know the status of this unit.
POWER switch
Press to turn the power
ON/OFF.
*: The STANDBY indicator is activated only when the supplied mini-plug cord is connected between this unit and the KENWOOD
receiver (such as the Kenwood KRF-X9995D receiver). The STANDBY indicator will light when the KENWOOD receiver is turned
OFF and it will go out when the KENWOOD receiver is turned ON.
When the supplied mini-plug cord is not used, the STANDBY indicator does not work.
STANDBY indicator*
Lights when this unit is in Standby mode.
Will blink if the internal thermal protection
circuitry is activated.
BRIDGEABLE
POWER AMPLIFIER
Power indicator
Lights while the power is ON.
Standby mode
While the standby indicator is lit, a small amount of power is supplied to the system to back up the memory. This is called standby
mode. Under the condition, the system can be turned ON by the remote control unit.
In case of difficulty
7 Operation to reset
The microcomputer may malfunction when the power cord is unplugged while power is ON or due to an external factor. In this
case, execute the following procedure to reset the microcomputer and return it to normal condition.
• Unplug the power cord from the AC outlet and, while holding the POWER switch depressed, plug the power cord into the AC
outlet again.
7 Troubleshooting
Symptom
Sound is not output from
one or all speakers.
The STANDBY indicator blinks
and sound is not output.
STANDBY indicator does not
lights.
Cause
• The speaker cords are disconnected.
• The audio cords are disconnected.
•
The STEREO/BTL switch is not set properly.
• Speaker cords are short-circuited.
• The internal temperature of the unit rose
and the protection circuitry was activated.
• The cord for RELAY CONTROL is not
connected.
• Connect them properly referring to “Connections”.
• Connect them properly referring to “Connections”.
• Set it properly referring to “Connections”.
• Turn the power OFF, eliminate the short-circuit-
ing, then turn ON the power again.
• Turn the power OFF and wait until the internal
temperature drops. After ensuring that the temperature has dropped, turn the power ON again.
As the current installation condition may not be
appropriate, improve it following the “Notes on
heat generation”.
• Connect it between this unit and the KENWOOD
receiver (such as the Kenwood KRF-X9995D receiver).
Remedy
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Specifications
Power amplifier section
Rated power output
● For other countries
STEREO MODE
130 watts per channel minimum RMS, both channels
driven at 6 Ω, from 20 Hz to 20,000 Hz with no more
than 0.02 % total harmonic distortion (FTC)
MONO (BTL) MODE
270 watts minimum RMS, at 6 Ω, from 20 Hz to 20,000
Hz with no more than 0.03 % total harmonic distortion (FTC)
Frequency response
MAIN IN .......................... 5 Hz ~ 100 kHz, +0 dB, –3 dB
Signal to noise ratio
(IHF'66)
MAIN IN ....................................................... 115 dB
Input sensitivity / Impedance
STEREO MODE
MAIN IN .............................................. 1.1 V / 20 kΩ
MONO (BTL) MODE
MAIN IN ............................................. 1.5 V/ 100 kΩ
● For Europe
(IEC)
STEREO MODE
From 20 Hz to 20,000 Hz, 0.7 % T.H.D. at 6 Ω
........................................................ 130 W+ 130 W
MONO (BTL) MODE
From 20 Hz to 20,000 Hz, 0.7 % T.H.D. at 6 Ω
...................................................................... 270 W
(DIN)
STEREO MODE
1 kHz, 0.7 % T.H.D. at 6 Ω ............... 145 W + 145 W
MONO (BTL) MODE
1 kHz, 0.7 % T.H.D. at 6 Ω ................................ 285 W
Total harmonic distortion
STEREO MODE
..................... 0.02 % (20 Hz ~ 20 kHz, 130 W, 6 Ω)
................................. 0.0018 % (1 kHz, 130 W, 6 Ω)
........................................ 0.05 %(1 kHz, 50 W, 2 Ω)
MONO (BTL) MODE
..................... 0.03 % (20 Hz ~ 20 kHz, 270 W, 6 Ω)
................................. 0.0018 % (1 kHz, 270 W, 6 Ω)
General
Power consumption ..................................................... 3.5 A
...................................................................... 320 W
......................................... Less than 2 W (Standby)
Dimensions
W: ................................................... 440 mm (17-5/16")
H: ..................................................... 128 mm (5-1/32")
D: ................................................... 385 mm (15-5/32")
Weight (net ) ............................................... 12.3 kg (27.2 Ib)
• KENWOOD follows a policy of continuous advancements in
development. For this reason specifications may be changed
without notice.
• Manufactured under license from Lucasfilm Ltd. Lucasfilm
and THX are trademarks or registered trademarks of
Lucasfilm Ltd.
For U.S.A.
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 of modification is made.
NOTE:
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment may cause harmful
interference to radio communications, if it is not installed
and used in accordance with the instructions. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and re-
ceiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician
for help.
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 dealer for information or service on
this product.
Model
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Serial Number
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