Kenwood Stereo Amplifier KAC PS811D User Manual

KAC-X811D  
KAC-PS811D  
SUBWOOFER POWER AMPLIFIER 7 page 2-9  
INSTRUCTION MANUAL  
© B64-2794-00/00 (MV)  
 
Installation  
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Accessories  
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Part name  
External View Number of Items  
Self-tapping screws  
(ø5 × 18 mm)  
4
Hexagon socket head cap screw  
(M4 × 8 mm)  
4
1
Cover  
 
 
Terminal cover (Power terminal)  
Hexagon Wrench  
1
1
 
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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 intended usage.  
3.Connect the input and output wires of the units.  
4.Connect the speaker wires.  
5.Connect the power wire, power control wire and grounding wire following this  
order.  
Hexagon Wrench  
Hexagon socket  
head cap screw  
(M4 × 8 mm)  
Duct  
6.Install the installation fittings in the unit.  
7.Attach the unit.  
8.Install the terminal cover.  
Duct  
9.Connect the negative - terminal of the battery.  
2CAUTION  
• 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-up occurs  
and the unit may be damaged.  
• Install this unit in a location which allows heat to easily dissipate.  
Once installed, do not place any object on top of the unit.  
• The surface temperature of the amplifier will become hot during use. Install  
the amplifier in a place where people, resins, and other substances that are  
sensitive to heat will not come into contact with it.  
• This unit has cooling fan to decrease the internal temperature. Do not  
mount the unit in a place where the cooling fan and ducts of the unit are  
blocked. Blocking these openings will inhibit the cooling of the internal  
temperature and result in malfunction.  
Cooling fan  
Cover  
• When making a hole under a seat, inside the trunk, or somewhere else in  
the vehicle, check that there is nothing hazardous on the opposite side  
such as a gasoline tank, brake pipe, or wiring harness, and be careful not to  
cause scratches or other damage.  
Installation board, etc.  
(thickness : 15 mm or more)  
Self-tapping screw  
(ø5 × 18 mm)  
• Do not install near the dashboard, rear tray, or air bag safety parts.  
• The installation to the vehicle should securely fasten the unit to a place in  
which it will not obstruct driving. If the unit comes off due to a shock and  
hits a person or safety part, it may cause injury or an accident.  
• After installing the unit, check to make sure that electrical equipment  
such as the brake lamps, turn signal lamps and windshield wipers operate  
normally.  
English 3  
 
* Commercially available parts  
Connection  
2WARNING  
CENTER UNIT  
(CD receiver, etc.)  
To prevent fire caused by a short in the wiring,  
connect a fusible link or breaker nearby the  
battery’s positive terminal.  
RCA cable ground  
terminal  
2CAUTION  
RCA cable*  
• If sound is not output normally, immediately  
turn power off and check connections.  
• Be sure to turn the power off before changing  
the setting of any switch.  
Power control wire  
Left input  
• If the fuse blows, check wires for shorts, then  
replace the fuse with one of the same rating.  
• Check that no unconnected wires or connectors  
are touching the car body. Do not remove  
caps from unconnected wires or connectors to  
prevent short circuits.  
 
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• Connect the speaker wires to appropriate  
speaker connectors separately. Sharing the  
negative wire of the speaker or grounding  
speaker wires to the metal body of the car can  
cause this unit to fail.  
Right input  
Lead terminal*  
Terminal cover  
• After installation, check that the brake lamps,  
winkers, and wipers work properly.  
Battery wire*  
Protective Fuse*  
Subwoofer (L + R)  
Battery  
Ground wire*  
LX-Bus connection  
Set the ID number of the Master amplifier to "0".  
You can connect up to 7 Slave amplifiers. Assign them ID numbers "1"  
to "7" and do not duplicate them.  
To KENWOOD disc changer/  
External optional accessory  
CENTER UNIT  
2CAUTION  
Control cable  
(option)  
• Do not connect 2 Master amplifiers to the Center Unit. If done, you  
cannot control all amplifiers connected to the Center Unit.  
• The LX AMP and the sensor unit cannot be connected  
simultaneously. You must connect any of them at a time.  
Power control wire  
NOTE  
• The total length of S-video cables you can connect is 14 meters  
(46 ft) maximum. If the cable length exceeds this limit, you cannot  
control amps from the Center Unit.  
 
 
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• If you assign the same ID number to multiple amplifiers, they  
malfunction when you operate any of them from the Center Unit.  
• If you assign ID number "8" or "9" to a Slave amplifier, it is not  
recognized by the Center Unit.  
Master amplifier  
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RCA cable*  
Extension wire*  
S-video cable*  
 
 
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Slave amplifier 1  
 
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Not more than  
14m (46 ft)  
 
 
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Slave amplifier 7  
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4 English  
 
Controls  
 
 
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1 Fuse (25 A × 3)  
2 Battery terminal  
3 Ground terminal  
# Power indicator  
Lights when the POWER switch is turned On.  
The indicator flashes several seconds when the POWER switch is turned On  
or when the Protection function is activated.  
4 Power control terminal  
$ INPUT SENSITIVITY control  
Controls the unit ON/OFF.  
Set this control according to the pre-output level of the center unit  
connected with this unit.  
NOTE  
NOTE  
Controls the unit power. Be sure to connect it with all the systems.  
For the pre-output level, refer to the "Specifications" in the instruction manual  
of the center unit.  
5 Speaker output terminals  
As this unit accepts speakers with a minimum impedance of 1 ohm, connect  
speakers with 1-ohm or higher impedance to these terminals.  
% AMP CONT (amplifier control) switch  
Used to bypass the circuit when you do not control the sound with the  
Amplifier Control.  
2CAUTION  
The rated input of the speakers should be no less than the maximum output  
of the amplifier. Otherwise malfunction may result.  
• ON position:  
Allows you to control the sound with the Amplifier Control.  
6 RCA cable ground lead terminal  
When using an RCA cable with a ground lead attached, connect the ground  
lead to this terminal.  
• OFF position:  
Bypasses the Amplifier Control circuit.  
NOTE  
7 ID NUMBER switch  
Amplifier control is possible even while OFF.  
Sets an amp identification number (ID) to be used for amplifier control from  
the Center Unit.  
^ PHASE switch  
When this switch is set "180°" (Reverse) the speaker output phase is reversed.  
Assign ID Number "0" to an amplifier when you use it as the Master amplifier.  
Assign ID Numbers "1" to "7" to amplifiers when you use them as Slave  
amplifiers. Do not duplicate these numbers.  
& BRF (band reject filter) switch  
When this switch is set to "-6dB"/"-12dB", frequencies in the band set with the  
"B.R.F. FREQUENCY" control are rejected and eliminated. The band rejection  
allows to reduce resonance inside the vehicle compartment and standing  
waves. (page 8)  
NOTE  
After you have changed ID numbers of amplifiers, turn Off the POWER switch  
of the Center Unit and turn it On again.  
* ISF (infrasonic filter) switch  
8 TO H/U terminal  
When this switch is set to "ON", the inaudible, ultralow frequencies below  
the frequency set with the "ISF FREQUENCY" switch are cut off. This improves  
the reproduction performance of the speakers by eliminating unnecessary  
oscillations which will not become sound.  
After you have set the Master amplifier, connect it to the Center Unit.  
9 REMOTE terminals  
Used to connect to Slave amplifiers.  
0 RESET button  
( ISF FREQUENCY switch  
Resets the microprocessor of the unit.  
Switches the cutoff frequency when the "ISF" switch is set to "ON".  
NOTE  
) LPF(Low-Pass Filter) FREQUENCY control  
This control adjusts the frequency band output from this unit.  
The values you have set with the Amplifier Control are NOT reset.  
@ B.R.F. FREQUENCY control  
! LINE IN terminal  
Sets the rejection frequency when the "BRF" switch is set to "-6dB"/"-12dB".  
(page 8)  
@ LINE OUT terminal  
The signal that’s input from the line input terminal is output.  
English 5  
 
Amplifier Control System  
Indicator  
MENU  
 
 
 
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Display mode  
4 Exit Menu mode  
Press the [MENU] button for at least 1 second.  
You can set up the display items as follows:  
NOTE  
1 Enter Menu mode  
When you hold down the [3] button 3 or more seconds during ID number  
display ("AMP"), message "MEMO" is displayed and you can register the values  
you have set with the Amplifier Control. To call the Amplifier Control’s values,  
hold down the [2] button 3 or more seconds during ID number display  
("AMP"). Then, you can recall the value when message "LOAD" is displayed.  
Press the [MENU] button.  
"VOLT"/"CURR"/"TEMP"/"FAN" is displayed.  
2 Select a display item  
Press the [2] or [3] button.  
The display items are switched in the following sequence.  
Display  
"VOLT"  
"CURR"  
"TEMP"  
"FAN"  
Information  
Default  
Indicates the source voltage (V).  
Indicates the current consumption (A).  
Indicates the internal temperature (°F/°C).  
Resets all values you have set to the initial (default) values.  
1 Enter Menu mode  
Press the [MENU] button.  
Indicates the rotation speed of the cooling fan in 3 steps: "FAST", "SLOW" or "OFF".  
2 Select Default mode  
Press the [MENU] button.  
Select the "DEFA" display.  
3 Exit Menu mode  
Press the [MENU] button for at least 1 second.  
NOTE  
3 Resets the value to its default  
Press the [3] button for at least 2 seconds.  
Message "----" is displayed, and the value is initialized.  
When the internal temperature is -22°F/-30°C or less, "-22F"/"-30C" is  
displayed.  
4 Exit Menu mode  
Separate Amp Control  
Press the [MENU] button for at least 1 second.  
NOTE  
You can control sounds using the Amplifier Control function of the unit.  
Volume offset value can not be initialized.  
1 Enter Menu mode  
Press the [MENU] button.  
Display Demonstration  
2 Select the Menu item  
Press the [MENU] button.  
The "VOLT"/"CURR"/"TEMP"/"FAN" items are displayed repeatedly.  
The setup items are displayed approximately 1 second first, then the set  
values are displayed.  
Press the [MENU] button for at least 2 seconds.  
The indicator flashes in the Demonstration mode.  
3 Adjust the Menu item  
Canceling the Demonstration mode  
Press any button to cancel the Demonstration mode.  
Press the [2] or [3] button.  
The setup items and set values are switched as follows.  
Display Range  
Adjustment Item  
"VOLT"/"CURR"/"TEMP"/"FAN"  
"BASS" 60/80/100/200 (Hz)  
For the operation method refer to 'Display mode'  
Bass Center Frequency  
"BA G"  
"BA Q"  
B–15 — B+15 (dB)  
Q1.00/Q1.25/Q1.50/Q2.00 Bass Q Factor  
Bass level  
When the bass extend is set to ON, low frequency response is  
extended by 20%.  
Volume offset  
" EXT"  
"VOL"  
ON/OFF  
–20 — 0 (dB)  
FAHR (Fahrenheit) or  
CELS (Centigrade)  
The Fahrenheit or Centigrade temperature unit can be selected  
for the Display mode.  
"TEMP"  
"DEFA"  
"AMP"  
For the operation method refer to 'Default'  
The ID Number you have assigned is displayed.  
0 — 7  
6 English  
 
Control an Amp from Center Unit  
Messages that may be displayed on the Center Unit  
You can control the sound by controlling amplifiers from the Center Unit.  
When you are selecting an item with the Amp Control, an error status of the  
amplifier is displayed on the Center Unit.  
1 Enter AMP Control mode  
Select the AMP Control mode by following the 'AMP Control' procedure  
given on the Operation Manual of the Center Unit.  
Display  
"AMP × E-01"/"AMP × COND E-01" When the inside of the unit is overheating.  
When the unit has failed and direct current voltage is generated  
Informations  
NOTE  
to the speaker’s output.  
Use the set item and value operation buttons by following the instructions  
given on the Operation Manual of the Center Unit.  
"AMP × E-02"/"AMP × COND E-02"  
NOTE  
Turn the POWER switch Off and release the protection. If the  
error message continues, consult to the KENWOOD’s dealership.  
2 Select an amp number to operate  
Operate the desired set item with the Center Unit.  
Select the "AMP NO"/"AMP CONTROL NO" display.  
When the speaker cord is shorted.  
When the speaker output is in contact with the vehicle ground.  
When you use the Amp Control in the Standby mode.  
"AMP × E-03"/"AMP × COND E-03"  
NOTE  
"AMP OFF"  
When the Center Unit is in the STANDBY mode, message "AMP OFF" is  
displayed and you cannot operate the set items.  
NOTE  
Number "×" on the display indicates the amp’s ID number.  
3 Set an ID number of Amp to operate  
Set an amp’s ID number on the Center Unit.  
You can select an ID number of "0" to "7" of connected amps.  
4 Select the AMP Control item for adjustment  
Select the desired set item on the Center Unit.  
5 Adjust the AMP Control item  
You can set a value of each item on the Center Unit.  
The set items and their values are switched and displayed as follows.  
Display  
"VOLT"/"CURR"/"TEMP"/"FAN"  
"VOLT"  
Range  
Adjustment Item  
The amp state is displayed.  
Indicates the source voltage (V).  
Indicates the current consumption (A).  
Indicates the internal temperature (°F/°C).  
Indicates the rotation speed of the cooling fan in  
3 steps: "FAST", "SLOW" or "OFF".  
"CURR"  
"TEMP"  
"FAN"  
"BAS F"/"BASS FREQ"  
"BAS G"/"BASS GAIN"  
"Q FA"/"Q FACTOR"  
"EXT"/"BASS EXT"  
60/80/100/200 (Hz)  
–15 — +15 (dB)  
Q1.00/Q1.25/Q1.50/Q2.00 Bass Q Factor  
Bass Center Frequency  
Bass level  
ON/OFF  
When the bass extend is set to ON, low frequency  
response is extended by 20%.  
"VOL"/"VOL OFFSET"  
"AMP NO"/  
–20 — 0 (dB)  
0 — 7  
Volume offset  
Select an ID number of the amp you use.  
"AMP CONTROL NO"  
6 Exit AMP Control mode  
Releases the Amp Control mode by the Center Unit.  
NOTE  
When you have controlled the bass or treble of the sound using the  
Equalizer or DSP function of the Center Unit, and when you amplify the same  
frequency as that controlled by the Amplifier Control, the sound may be  
distorted due to an input overflow.  
English 7  
 
Band Reject Filter  
The acoustic properties of vehicle compartment tend to cause oscillation due to  
resonance or unclearness of sound due to standing waves at certain frequencies.  
The band reject filter can solve the problems of resonance or unclear sound  
with minimum influence on the sound quality because it eliminates only the  
frequencies causing resonance or standing waves.  
Adjustment method:  
The band reject filter cuts only the limited frequencies to minimize influence  
on the sound quality. Therefore, its effect cannot be obtained unless the  
cutoff frequencies are set accurately to the frequencies causing resonance  
and standing waves. The band reject filter can be adjusted according to what  
you feel through your ears, but we recommend the use of a signal generator  
or a spectrum analyzer with a fine frequency measurement capability for the  
adjustment.  
0 dB  
• Adjustment using a signal generator:  
Output a sine wave, vary its frequency to find the frequencies at which  
the vehicle compartment resonates or volume increases (standing waves  
occur), and set the B.R.F. FREQUENCY control to the position with which the  
resonance and standing waves disappear.  
Frequency  
• Adjustment using a spectrum analyzer:  
Output white noise (sound in which all frequencies are at a certain level),  
find the peak frequency observed on the spectrum analyzer, and set the  
B.R.F. FREQUENCY control to the position with which the peak observed on  
the spectrum analyzer disappears.  
Troubleshooting 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.  
• Input (or output) cables are disconnected.  
• Protection circuit may be activated.  
• Volume is too high.  
• Connect the input (or output) cables.  
• Check connections by referring to "Protection function".  
• Replace the fuse and use lower volume.  
• After check the speaker cord and fixing the cause of the short,  
replace the fuse.  
(Blown fuse.)  
• The speaker cord is shorted.  
The output level is too small • The input sensitivity adjusting control is not set to the correct • Adjust the control correctly referring to "Controls".  
(or too large).  
position.  
The sound quality is bad.  
(The sound is distorted.)  
• The speakers wire are connected with wrong + /-polarity.  
• Connect them properly checking the + / - of the terminals  
and wires well.  
• A speaker wire is pinched by a screw in the car body.  
• Connect the speaker wire again so that it is not pinched by  
anything.  
• The switches may be set improperly.  
• The AMP CONT has been turned "OFF".  
• Set switches properly by referring to "Controls".  
• Turn the AMP CONT "ON".  
The sound does not change  
even when you have changed  
it with the Amplifier Control.  
The set value cannot be  
changed by the Amplifier  
Control of the unit.  
• The AMP Control of the Center Unit is being used.  
• Release the AMP Control mode of the Center Unit.  
The Amplifier Control cannot • An incorrect ID number is used for the Master amplifier.  
be operated from the Center • The ID number of the amplifier has been changed.  
Unit.  
• Always set the ID number of the Master amplifier to "0".  
• After you have changed the ID number of an amplifier, turn Off  
the POWER switch of the Center Unit first, then turn it On again.  
8 English  
 
Specifications  
Specifications subject to change without notice.  
Audio Section......................................................................................................................................... KAC-X811D  
RMS Power Output (+B = 14.4 V, CEA-2006)  
(4 Ω) (1.0 % THD+N) ...................................................................................................................................................................................................... 533 W  
(2 Ω) (1.0 % THD+N) ...................................................................................................................................................................................................... 919 W  
(1 Ω) (1.0 % THD+N) ................................................................................................................................................................................................... 1016 W  
Dynamic Power (+B = 14.4 V, CEA-2006) .......................................................................................................................................................................... 566 W  
Output Regulation (+B = 14.4 V, CEA-2006)..........................................................................................................................................under 0.2 dB (4 Ω)  
Signal to Noise Ratio (CEA-2006)...................................................................................................................................................................... 74 dBA (W/4 Ω)  
Signal to Noise Ratio (Bypass) (CEA-2006) .................................................................................................................................................. 74 dBA (W/4 Ω)  
Low Pass Filter Frequency (24 dB/oct.) ............................................................................................................................................ 50 – 200 Hz (variable)  
Infrasonic Filter Frequency (24 dB/oct.).......................................................................................................................................................OFF / 15 / 25 Hz  
Phase Inverter....................................................................................................................................................................................0° (Normal) / 180° (Reverse)  
Band Reject Filter Frequency................................................................................................................................................................. 40 – 200 Hz (variable)  
Frequency Response (+0, –3 dB)...........................................................................................................................................................................5 Hz – 200 Hz  
Sensitivity (rated output) (MAX.) ............................................................................................................................................................................................. 0.2 V  
Sensitivity (rated output) (MIN.) .............................................................................................................................................................................................. 5.0 V  
Input Impedance ............................................................................................................................................................................................................................10 kΩ  
Audio Section....................................................................................................................................... KAC-PS811D  
Max Power Output..................................................................................................................................................................................................................... 1600 W  
Rated Power Output (+B = 12.0 V)  
(4 Ω) (20 Hz – 200 Hz, 0.5 % THD)..................................................................................................................................................................300 W × 1  
(2 Ω) (100 Hz, 0.5 % THD)....................................................................................................................................................................................600 W × 1  
Rated Power Output (+B = 14.4 V)  
(4 Ω) (20 Hz – 200 Hz, 0.5 % THD)..................................................................................................................................................................400 W × 1  
(4 Ω) (DIN45324, +B = 14.4 V)..........................................................................................................................................................................400 W × 1  
(2 Ω) (100 Hz, 0.5 % THD)....................................................................................................................................................................................800 W × 1  
(1 Ω) (100 Hz, 1.0 % THD).................................................................................................................................................................................1000 W × 1  
Low Pass Filter Frequency (24 dB/oct.) ............................................................................................................................................ 50 – 200 Hz (variable)  
Infrasonic Filter Frequency (24 dB/oct.).......................................................................................................................................................OFF / 15 / 25 Hz  
Phase Inverter....................................................................................................................................................................................0° (Normal) / 180° (Reverse)  
Band Reject Filter Frequency................................................................................................................................................................. 40 – 200 Hz (variable)  
Frequency Response (+ 0 , – 3 dB).......................................................................................................................................................................5 Hz – 200 Hz  
Signal to Noise Ratio...................................................................................................................................................................................................................100 dB  
Sensitivity (rated output) (MAX.) ............................................................................................................................................................................................. 0.2 V  
Sensitivity (rated output) (MIN.) .............................................................................................................................................................................................. 5.0 V  
Input Impedance ............................................................................................................................................................................................................................10 kΩ  
Amplifier Control Section (EQ) ...............................................................................................KAC-X811D/PS811D  
Bass frequency .............................................................................................................................................................................................. 60 / 80 / 100 / 200 Hz  
Bass level ...........................................................................................................................................................................................................................-15 — +15 dB  
Bass Q factor.................................................................................................................................................................................................1.00 / 1.25 / 1.50 / 2.00  
General .....................................................................................................................................KAC-X811D/PS811D  
Operating Voltage ........................................................................................................................................................................... 14.4 V (11 – 16 V allowable)  
Current Consumption (+B = 12.0 V, 100 Hz, 10 % THD, 4 Ω)......................................................................................................................................55 A  
Dimensions (W × H × D) ..........................................................................................................................................................................386 × 61 × 259.5 mm  
............................................................................................................................................................................................15-3/16 × 2-3/8 × 10-3/16 inch  
Installation Size (W × H × D) ..................................................................................................................................................................... 386 × 61 × 265 mm  
.............................................................................................................................................................................................. 15-3/16 × 2-3/8 × 10-3/8 inch  
Weight .......................................................................................................................................................................................................................... 4.07 kg (8.97 lbs)  
English 9  
 
 

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