Kenwood KAC-PS541 Stereo Amplifier User Manual
Contents
1. speaker wires to the metal body of the car can cause this unit to fail After installation check that the brake lamps winkers and wipers work properly B LX Bus connection CENTER UNIT Power control wire Battery wire Protective Fuse 2 8 Am Ground wire Battery To KENWOOD disc changer External optional accessory Control cable option T J hanne e ight speaker e e hanne ood o speaker 2 B channe e N Right speaker 8 channe Left speaker o e A channel e oni o Speaker Bridged e e B channel Fee o Speaker Bridged 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 ACAUTION 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 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 Master amplifier Ext2. 20 Bridged 4 Q B 12 0 V 20 Hz 20 kHz 0 05 96 THD 1 kHz 0 5 96 THD 1 kHz 0 5 96 THD B 14 4 V 20 Hz 20 kHz 0 05 96 THD DIN 45324 B 14 4V 1 kHz 0 5 96 THD 1 kHz 0 5 96 THD Low Pass Filter Frequency 24 dB oct B channel High Pass Filter Frequency 12 dB oct nfrasonic Filter Frequency 24 dB oct B channel Frequency Response 0 3 dB Signal to Noise Ratio Sensitivity rated output MAX M nput Impedance Amplifier Control Section EQ B channel Bass frequency Bass level Bass Q factor Treble frequency Treble level General assisia C T Operating Voltage Current Consumption B 12 0 V 1 kHz 10 96 THD 4 Q Dimensions W x H x D Installation Size W x H x D ACE IAA 50 200 Hz variab 50 200 Hz variab KAC X541 PS541 60 80 100 200 Hz 15 415 dB 1 00 1 25 1 50 2 00 10 12 15 17 kHz 15 dB aber s KAC X541 PS541 144 V 11 16 V allowable a Das 42 A 446 X 61 x 259 5 mm 17 5 8 x 2 3 8 x 10 3 16 inch 446 x 61 x 265 mm x 2 3 8 x 10 3 8 inch UI 4 47 kg 9 85 Ibs English 9 KENWOOD
3. with the HPF FREQUENCY control OFF position The entire bandwidth is output without filtering LPF Low Pass Filter position The filter outputs the band of lower frequencies than the frequency set with the LPF FREQUENCY control The speaker output is automatically switched to monaural L R AMP CONT amplifier control switch B ch Used to bypass the circuit when you do not control the sound with the Amplifier Control ON position You can control the sound of amplifier B using the Amplifier Control e OFF position Bypasses the Amplifier Control circuit NOTE Amplifier control is possible even while OFF ISF infrasonic filter switch B ch When this switch is ON the frequencies which are below the audible range and therefore inaudible are cut off so that the quality of the audible frequencies can be improved OPERATION switch A ch B ch The amplification methods of the signals input to amplifiers A and B can be selected independently according to the setting of this switch e STEREO position The amplifier can be used as a stereo amplifier MONO Lch position Amplifies the signal input from the left side only Set to this position and make bridged connections to use as a high power monaural amplifier The input right signal is not output Q9 HPF High Pass Filter switch A ch This switch allows to apply high pass filtering to the speaker outputs ON position The filter outputs the band of higher
4. 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 a button 3 or more seconds during ID number display AMP Then you can recall the value when message LOAD is displayed Default Resets all values you have set to the initial default values 1 Enter Menu mode Press the MENU button 2 Select Default mode Press the MENU button Select the DEFA display 3 Resets the value to its default Press the gt button for at least 2 seconds Message is displayed and the value is initialized 4 Exit Menu mode Press the MENU button for at least 1 second NOTE Volume offset value can not be initialized Display Demonstration The VOLT CURR TEMP FAN items are displayed repeatedly Press the MENU button for at least 2 seconds The indicator flashes in the Demonstration mode Canceling the Demonstration mode Press any button to cancel the Demonstration mode Control an Amp from Center Unit The following explains how to control the sound of Amplifier B by operating the Amplifier Control of the unit from 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 NOTE Use the set item and value operation buttons by following the instructions given on the Operation Manual of t
5. cord is shorted ED When the speaker output is in contact with the vehicle ground VOLT display is blinked When voltage gets out of operation range Wiring Take the battery wire for this unit directly from the battery If it s connected to the vehicle s wiring harness it can cause blown fuses etc If a buzzing noise is heard from the speakers when the engine is running connect a line noise filter optional to each of the battery wire Do not allow the wire to directly contact the edge of the iron plate by using Grommets Connect the ground wire to a metal part of the car chassis that acts as an electrical ground passing electricity to the battery s negative terminal Do not turn the power on if the ground wire is not connected Be sure to install a protective fuse in the power cord near the battery The protective fuse should be the same capacity as the unit s fuse capacity or somewhat larger For the power cord and ground use a vehicle type fireproof power wring Cord with a current capacity greater than the unit s fuse capacity Use a power wiring cord with a diameter of 8 mm AWG 8 or greater When more than one power amplifier are going to be used use a power supply wiring wire and protective fuse of greater current handling capacity han the total maximum current drawn by each amplifier Speaker Selection The rated input power of the speakers that are going to be connected should be gr
6. power control wire and grounding wire following this order 6 Install the installation fittings in the unit 7 Attach the unit 8 Install the terminal cover 9 Connect the negative terminal of the battery ACAUTION Do not install in the below locations Unstable location In a location that interferes with driving In a location hat 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 he 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 fans 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 emperature and result in malfunction When making a hole under a seat inside the trunk or somewhere else in he 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 Do
7. to amplifiers when you use them as Slave amplifiers Do not duplicate these numbers NOTE er you have changed ID numbers of amplifiers turn Off the POWER switch the Center Unit and turn it On again he maximum output A O TO H U terminal After you have set the Master amplifier connect it to the Center Unit 9 REMOTE terminals Used to connect to Slave amplifiers RESET button Resets the microprocessor of the unit NOTE The values you have set with the Amplifier Control are NOT reset LINE IN terminal A ch B ch amp 2 LINE OUT terminal These jacks output respectively the signals input to amplifiers A and B They always output the stereo signals regardless of the position of the OPERATION switch 3 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 HPF FREQUENCY control A ch B ch A Sets the cutoff frequency when the HPF switch is set to ON BJ Sets the cutoff frequency when the FILTER switch is set to HPF 5 LPF FREQUENCY control B ch Sets the cutoff frequency when the FILTER switch is set to LPF FILTER switch B ch This switch allows to apply high pass or low pass filtering to the speaker outputs HPF High Pass Filter position The filter outputs the band of higher frequencies than the frequency set
8. KENWOOD KAC X541 KAC PS541 INSTRUCTION MANUAL KENWOOD CORPORATION Safety precautions AWARNING To prevent injury or fire take the following precautions When extending the ignition battery or ground wires make sure to use automotive grade wires or other wires with a 8 mm AWG 8 or more to prevent wire deterioration and damage to the wire coating To prevent a short circuit never put or leave any metallic objects such as coins or metal tools inside the unit If the unit starts to emit smoke or strange smells turn off the power immediately and consult your Kenwood dealer Do not touch the unit during use because the surface of the unit becomes hot and may cause burns if touched A CAUTION To prevent damage to the machine take the following precautions Be sure the unit is connected to a 12V DC power supply with a negative ground connection Do not open the top or bottom covers of the unit Do not install the unit in a spot exposed to direct sunlight or excessive heat or humidity Also avoid places with too much dust or the possibility of water splashing When replacing a fuse only use a new one with the prescribed rating Using a fuse with the wrong rating may cause your unit to malfunction To prevent a short circuit when replacing a fuse first disconnect the wiring harness Available Control Units A KENWOODS LX Bus supporting Center Unit released in 2004 or later can control this u
9. O O 4 4 50 200 MINS 0 2MAX 50 200 MIN S 0 2MAX ms ae a nerven INPUT FREQUENCY Hz FREQUENCY Hz SENSITIVITY Y FREQUENCY Hz SENSITIVITY Jt B chy Ach FILTER AMPCONT ISF OPERATION HPF OPERATION HPF ON ON MONO Lch on ice isi Es Ll E d Left speaker High pass CENTER UNIT L Right speaker High pass Subwoofer Bridged 100 1 100 1 150 2 og 70 150 3s p 0 3 A 03 50 200 mins 0 2 MAX 50 200 MIN S __ 0 2 MAX 150 100 70 70 50 200 FreadERovnn Freatenovua sexti FREQUENCY sentitivirvo B ch ip Ach FILTER AMPCONT ISF OPERATION HPF OPERATION 5 on ON 3 ON ia T in OFF OFF eo el EM B Tri mode High pass Subwoofer L R Bridged CENTER UNIT 2 pa u i 03 LO O O C D 50 200 50 A 200 MIN S 0 21MAX 50 200 MIN S 0 2 MAX rread hicve rRealencve sensrivitva FrequeNcvet sensinmmm JL B ch Ach FILTER AMPCONT ISF OPERATION HPF OPERATION ON MONO Lch ON MONO Lch s OFF EM OFF S 8 English B High power 2 channel system Left speaker Bridged CENTER UNIT Right speaker Bridged 100 1 100 a 150 2 os 70 150 2 js i 03 E 0 3 50 200 MIN S 0 2 MAX 50 200 MIN S 0 2 MAX 150 100 70 70 50 200 LPF HPF INPUT HPF INPUT FaeaVEncv 2 eoe viua sensinumm eneoUEnov 19 Lsensitivirvon JU B ch Ac
10. OTE When the internal temperature is 22 F 30 C or less 22F 30C is displayed Separate Amp Control The following explains how to control the sound of amplifier B using the Amplifier Control of the unit 1 Enter Menu mode Press the MENU button 2 Select the Menu item Press the MENU button The setup items are displayed approximately 1 second first then the set values are displayed 3 Adjust the Menu item Press the 44 or gt button The setup items and set values are switched as follows Display Range Adjustment Item VOLT CURR TEMP FAN For the operation method refer to Display mode BASS 60 80 100 200 Hz ass Center Frequency BAG B 15 B 15 dB ass level BAQ 01 00 01 25 01 50 02 00 Bass Q Factor EN When the bass extend is set to ON low frequency response is E ON OFF extended by 20 udi TREB 10 12 15 17 kHz reble Center Frequency IRG T 15 12 15 dB reble level VOL 20 0 dB Volume offset TEMP FAHR Fahrenheit or he Fahrenheit or Centigrade temperature unit can be selected CELS Centigrade or the Display mode DEFA For the operation method refer to Default AMP 0 7 he ID Number you have assigned is displayed 6 English 4 Exit Menu mode Press the MENU button for at least 1 second NOTE When you hold down the gt button 3 or more seconds during ID number display
11. dB Volume offset AMP NO 0 7 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 requency as that controlled by the Amplifier Control the sound may be distorted due to an input overflow Messages that may be displayed on 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 Display Informations AMP x E 01 AMP x COND E 01 When the inside of the unit is overheating When the unit has failed and direct current voltage is generated to the speaker s output AMP x E 02 AMP x COND E 02 NOTE Turn the POWER switch Off and release the protection If the error message continues consult to the KENWOODS dealership 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 x E 03 AMP x COND E 03 AMP OFF NOTE umber x on the display indicates the amp s ID number English 7 System examples E 4 channel system q Front Left speaker CENTER UNIT ig Front Right speaker Rear Left speaker Rear Right speaker Qr O
12. eater than the maximum output power in Watts of the amplifier Use of speakers having input power ratings that are less than the output power of he amplifier will cause smoke to be emitted as well as damage The impedance of the speakers that are going to be connected should be 20 or greater for stereo connections or 40 or greater for bridged connections When more than one set of speakers are going to be used calculate the combined impedance of the speakers and then connect suitable speakers to the amplifier Combined impedance Installation 446 mm Duct Hexagon socket head cap screw M4 x 8 mm Installation board etc thickness 15 mm or more Hexagon Wrench Cooling fan Self tapping screw 85 x 18 mm Accessories Partname External View Number of Items Self tapping screws 85 x 18 mm Hexagon socket head cap screw M4 x 8 mm D 4 Cover Terminal cover Power terminal Hexagon Wrench NO 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
13. ension wire DER o KO a 200 ID NUMBER S video cable B control amps from the Center Unit 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 Tan Slave amplifier 1 i 1 7 a o ID NUMBER Slave amplifier 7 4 English k56 mq n7 KO _ ees y o ID NUMBER Controls SPEAKER OUTPUT RE REED eure EX SPEAKER OUTPUT EY sRIDGED O RIGHTS Gear ee ae T D 7 This is a 4 channel amplifier including 2 stereo amplifiers in a body One amplifier is referred to as amplifier A and the other is amplifier B This unit is compatible with a large var
14. frequencies than the frequency set with the HPF FREQUENCY control OFF position The entire bandwidth is output without filtering INPUT SENSITIVITY control A ch B ch Set this control according to the pre output level of the center unit connected with this unit NOTE For the pre output level refer to the Specifications in the instruction manual of the center unit English 5 Amplifier Control System a erin rn A O A e E gt 1 PADLERE oo o E o Indicator MENU Display mode You can set up the display items as follows 1 Enter Menu mode Press the MENU button VOLT CURR TEMP FAN is displayed 2 Select a display item Press the 44 or gt button The display items are switched in the following sequence 150 30 a 190 1 gt mos 7 so 2 70 160 2 os 0s se O as E 0 s 20050 AMAN n 20 MSS aan so 200 INS O Display Information VOLT Indicates the source voltage V CURR Indicates the current consumption A TEMP Indicates the internal temperature F C FAN Indicates the rotation speed of the cooling fan in 3 steps FAST SLOW or OFF 3 Exit Menu mode Press the MENU button for at least 1 second N
15. h Ir FILTER AMPCONT ISF OPERATION HPF OPERATION mn I i L s l i LPF OFF OFF stereo Lorr STEREO Principle of Tri mode Method of frequency band division using a coil and capacitor in case of 6dB oct slope Coil L Passes low frequencies and blocks high frequencies Low pass Capacitor C Passes high frequencies and blocks low frequencies High pass Crossover Frequency Frequency 159xR 159000 fc Cut of Frequency Hz oe fc me xm foxR Y R Speaker Impedance Q Example When it is required to set a crossover frequency of 120 Hz using speakers with an impedance of 4 ohms Prepare commercially available coil and capacitor with the closest ratings to the results calculated from the formula above The capacitor rating should be as close as possible to 331 25 uF and the coil rating should be as close as possible to 5 3 mH ACAUTION If you wish to bridge connect a speaker the speaker impedance must be no less than 4 ohms Connecting a speaker with an impedance lower than 4 ohms may damage the unit Be sure to connect capacitors to speakers to which high frequencies will be passed Failure to do so will result in a drop of the combined impedance with the subwoofer Ensure that the withstand voltage and current ratings of the capacitors C and coils L are sufficient Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight m
16. he Center Unit 2 Select an amp number to operate Operate the desired set item with the Center Unit Select the AMP NO AMP CONTROL NO display NOTE When the Center Unit is in the STANDBY mode message AMP OFF is displayed and you cannot operate the set items 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 Range Adjustment Item VOLT CURR TEMP FAN The amp state is displayed VOLT Indicates the source voltage V CURR Indicates the current consumption A TEMP Indicates the internal temperature F C FAN Indicates the rotation speed of the cooling fan in 3 steps FAST SLOW or OFF BAS F BASS FREQ 60 80 100 200 Hz Bass Center Frequency BAS G BASS GAIN 15 15 dB Bass level QFA Q FACTOR 01 00 01 25 01 50 02 00 Bass Q Factor EXT BASS EXT ON OFF When the bass extend is set to ON low frequency response is extended by 20 TRE F TREB FREQ 10 12 15 17 kHz Treble Center Frequency TRE G TREB GAIN 15 15 dB Treble level VOL VOL OFFSET 20 0
17. iety of systems by combining the switches and functions described in the following CD Fuse 30 A x 2 Battery terminal 3 Ground terminal Power control terminal Controls the unit ON OFF NOTE Controls the unit power Be sure to connect it with all the systems Speaker output terminals A ch B ch Stereo Connections When you wish to use the unit as a stereo amplifier stereo connections are used The speakers to be connected should have an impedance of 20 or greater When multiple speakers are to be connected ensure that the combined impedance is 20 or greater for each channel Bridged Connections When you wish to use the unit as a high output monaural amplifier bridged connections are used Make connections to the LEFT channel and the RIGHT channel SPEAKER OUTPUT terminals The speakers to be connected should have an impedance of 40 or greater When multiple speakers are to be connected ensure that the combined impedance is 40 or greater ACAUTION The rated input of the speakers should be no less than of the amplifier Otherwise malfunction may result RCA cable ground lead terminal When using an RCA cable with a ground lead attached connect the ground ead to this terminal ID NUMBER switch Sets an amp identification number ID to be used for amplifier control from he Center Unit Assign ID Number 0 to an amplifier when you use it as the Master amplifier Assign ID Numbers 1 to 7
18. isoperation or miswiring Before calling service first check the following table for possible problems PROBLEM No sound No sound from one side Blown fuse POSSIBLE CAUSE Input or output cables are disconnected Protection circuit may be activated Volume is too high The speaker cord is shorted SOLUTION 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 The output level is too small or too large The input sensitivity adjusting control is not set to the correct position Adjust the control correctly referring to Controls The sound quality is bad The sound is distorted The speakers wire are connected with wrong Opolarity A speaker wire is pinched by a screw in the car body The switches may be set improperly Connect them properly checking the of the terminals and wires well Connect the speaker wire again so anything Set switches properly by referring that it is not pinched by o System examples The sound does not change even when you have changed it with the Amplifier Control The AMP CONT has been turned OFF The filtered band has been controlled by the Amplifier Control Turn the AMP CONT ON Turn the filter Off The set value cann
19. nit The operations of the LX AMP Control are explained in the Operation Manual of the Center Unit NOTE The LX AMP and the sensor unit cannot be connected simultaneously You must connect any of them at a time NOTE If you experience problems during installation consult your Kenwood dealer If the unit does not seem to be working right consult your Kenwood dealer 2 English Cleaning the unit If the front panel gets dirty turn off the power and wipe the panel with a dry silicon cloth or soft cloth ACAUTION Do not wipe the panel with a hard cloth or a cloth dampened by volatile solvents such as paint thinner and alcohol They can scratch the surface of the panel and or cause the indicator letters to peel off To prevent battery rise When the unit is used in the ACC ON position without turning the engine ON it depletes the battery Use it after starting the engine Protection function There is a Protection function installed in the unit to protect the unit and speakers from various problems When Protection operates the display informs you of the condition Display Informations E 01 When the inside of the unit is overheating When the unit has failed and direct current voltage is generated to the speaker s output E 02 NOTE Turn the power OFF and release the protection If the E 02 code does not disappear contact your Kenwood dealer When the speaker
20. 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 Connection Commercially available parts AWARNING ACAUTION To prevent fire caused by a short in the wiring connect a fusible link or breaker nearby the battery s positive terminal If sound is not output normally immediately turn power off and check connections Be sure to turn he power off before changing the setting of any switch 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 Connect the speaker wires to appropriate speaker connectors separately Sharing the negative wire of the speaker or grounding CENTER UNIT CD receiver etc T RCA cable RCA cable ground Lead terminal terminal B channel input A channel input IZV gt
21. ot be The AMP Control of the Center Unit is being used Release the AMP Control mode of he Center Unit changed by the Amplifier Control of the unit The Amplifier Control cannot be operated from the Center Unit An incorrect ID number is used for the Master amplifier The ID number of the amplifier has been changed 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 Specifications Specifications subject to change without notice Audio Sectio Ms RMS Power Output B 14 4 V CEA 2006 Normal 4 Q 4ch 1 0 96 THD N 2 O Ach 1 0 96 THD N Bridged 4 O 2ch 1 0 96 THD N Dynamic Power B 14 4 V CEA 2006 Output Regulation B 14 4 V CEA 2006 Signal to Noise Ratio CEA 2006 Bypass CEA 2006 Low Pass Filter Frequency 24 dB oct B channel High Pass Filter Frequency 12 dB oct un nfrasonic Filter Frequency 24 dB oct B channel Frequency Response 0 3 dB Sensitivity rated output MAX nput Impedance Audio Section arcada aie vac n i Max Power Output under 0 3 dB 4 Q 76 dBA W 4 O 76 dBA W 4 O 50 200 Hz variable 50 200 Hz variable Rated Power Outpu Normal 4 Q 20 Bridged 4 Q Rated Power Outpu Normal 4 Q 4 Q
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